uTools-Manuals/docs/java/javax/swing/JPopupMenu.html

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     javax.swing 
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<h2 class="title" title="Class JPopupMenu">Class JPopupMenu</h2>
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<li>javax.swing.JPopupMenu</li>
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         All Implemented Interfaces: 
       </dt>
<dd>
<span><a href="../../java/awt/image/ImageObserver.html" title="java.awt.image中的接口">ImageObserver</a> ， <a href="../../java/awt/MenuContainer.html" title="java.awt中的接口">MenuContainer</a> ， <a href="../../java/io/Serializable.html" title="java.io中的接口">Serializable</a> ， <a href="../../javax/accessibility/Accessible.html" title="javax.accessibility中的接口">Accessible</a> ， <a href="../../javax/swing/MenuElement.html" title="javax.swing中的接口">MenuElement</a></span>
</dd>
</dl>
<dl>
<dt>
        已知直接子类：
       </dt>
<dd>
<span><a href="../../javax/swing/plaf/basic/BasicComboPopup.html" title="javax.swing.plaf.basic中的类">BasicComboPopup</a></span>
</dd>
</dl>
<hr/> <br/> <pre>public class <span class="typeNameLabel">JPopupMenu</span>
extends <a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a>
implements <a href="../../javax/accessibility/Accessible.html" title="interface in javax.accessibility">Accessible</a>, <a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a></pre>
<div class="block">
<span>弹出菜单的一个实现 - 弹出一个小窗口并显示一系列选择。</span>
<span><code>JPopupMenu</code>用于当用户选择菜单栏上的项目时出现的菜单。</span>
<span>它也用于当选择激活它的菜单项时出现的“拉右”菜单。</span>
<span>最后，一个<code>JPopupMenu</code>也可以在你想要菜单出现的地方使用。</span>
<span>例如，当用户在指定区域中右键单击时。</span>
<p> <span>有关使用弹出菜单的信息和示例，请参阅<em>Java教程</em>中<em>的</em> <a href="http://docs.oracle.com/javase/tutorial/uiswing/components/menu.html">How to Use Menus</a> <em>。</em></span> </p>
<p> <span><strong>警告：</strong> Swing不是线程安全的。</span> <span>有关更多信息，请参阅<a href="package-summary.html#threading">Swing's Threading Policy</a> 。</span> </p>
<p> <span><strong>警告：</strong>此类的序列化对象与将来的Swing版本不兼容。</span> <span>当前的序列化支持适用于运行相同版本的Swing的应用程序之间的短期存储或RMI。</span> <span>从1.4开始，对所有JavaBeans的长期存储的支持已经添加到<code>java.beans</code>包中。</span> <span>请参阅<a href="../../java/beans/XMLEncoder.html" title="java.beans中的类"><code>XMLEncoder</code></a> 。</span> </p>
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<span>Nested Classes</span>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<td class="colFirst"><code>protected class </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.AccessibleJPopupMenu.html" title="class in javax.swing">JPopupMenu.AccessibleJPopupMenu</a></span></code>
<div class="block">
              这个类实现了可访问性支持 
             <code>JPopupMenu</code>类。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static class </code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.Separator.html" title="class in javax.swing">JPopupMenu.Separator</a></span></code>
<div class="block">
              弹出菜单特定的分隔符。 
            </div> </td>
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<span>构造方法</span>
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<tbody>
<tr>
<th class="colOne" scope="col">Constructor and Description</th>
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<tr class="altColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#JPopupMenu--">JPopupMenu</a></span>()</code>
<div class="block">
              构造一个没有“调用者”的 
             <code>JPopupMenu</code> 。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#JPopupMenu-java.lang.String-">JPopupMenu</a></span>(<a href="../../java/lang/String.html" title="class in java.lang">String</a> label)</code>
<div class="block">
              构造一个 
             <code>JPopupMenu</code>具有指定标题。 
            </div> </td>
</tr>
</tbody>
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<caption>
<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t1"><span><a href="javascript:show(1);">静态方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
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<span class="tableTab" id="t6"><span><a href="javascript:show(32);">弃用的方法</a></span><span class="tabEnd"> </span></span>
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<tbody>
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<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Method and Description</th>
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<tr class="altColor" id="i0">
<td class="colFirst"><code><a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#add-javax.swing.Action-">add</a></span>(<a href="../../javax/swing/Action.html" title="interface in javax.swing">Action</a> a)</code>
<div class="block">
              在菜单末尾附加一个新菜单项，该菜单将调度指定的 
             <code>Action</code>对象。 
            </div> </td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code><a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#add-javax.swing.JMenuItem-">add</a></span>(<a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> menuItem)</code>
<div class="block">
              将指定的菜单项追加到此菜单的末尾。 
            </div> </td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code><a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#add-java.lang.String-">add</a></span>(<a href="../../java/lang/String.html" title="class in java.lang">String</a> s)</code>
<div class="block">
              创建一个带有指定文本的新菜单项，并将其附加到此菜单的末尾。 
            </div> </td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#addMenuKeyListener-javax.swing.event.MenuKeyListener-">addMenuKeyListener</a></span>(<a href="../../javax/swing/event/MenuKeyListener.html" title="interface in javax.swing.event">MenuKeyListener</a> l)</code>
<div class="block">
              添加一个 
             <code>MenuKeyListener</code>到弹出菜单。 
            </div> </td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#addPopupMenuListener-javax.swing.event.PopupMenuListener-">addPopupMenuListener</a></span>(<a href="../../javax/swing/event/PopupMenuListener.html" title="interface in javax.swing.event">PopupMenuListener</a> l)</code>
<div class="block">
              添加一个 
             <code>PopupMenu</code>监听器。 
            </div> </td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#addSeparator--">addSeparator</a></span>()</code>
<div class="block">
              在菜单末尾附加一个新的分隔符。 
            </div> </td>
</tr>
<tr class="altColor" id="i6">
<td class="colFirst"><code>protected <a href="../../java/beans/PropertyChangeListener.html" title="interface in java.beans">PropertyChangeListener</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#createActionChangeListener-javax.swing.JMenuItem-">createActionChangeListener</a></span>(<a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> b)</code>
<div class="block">
              返回正确配置的 
             <code>PropertyChangeListener</code> ，更新控件，因为发生了 
             <code>Action</code>更改。 
            </div> </td>
</tr>
<tr class="rowColor" id="i7">
<td class="colFirst"><code>protected <a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#createActionComponent-javax.swing.Action-">createActionComponent</a></span>(<a href="../../javax/swing/Action.html" title="interface in javax.swing">Action</a> a)</code>
<div class="block">
              工厂方法创建 
             <code>JMenuItem</code>为 
             <code>Actions</code>添加到 
             <code>JPopupMenu</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i8">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#firePopupMenuCanceled--">firePopupMenuCanceled</a></span>()</code>
<div class="block">
              通知 
             <code>PopupMenuListeners</code>该弹出菜单被取消。 
            </div> </td>
</tr>
<tr class="rowColor" id="i9">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#firePopupMenuWillBecomeInvisible--">firePopupMenuWillBecomeInvisible</a></span>()</code>
<div class="block">
              通知 
             <code>PopupMenuListener</code>这个弹出菜单将变得不可见。 
            </div> </td>
</tr>
<tr class="altColor" id="i10">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#firePopupMenuWillBecomeVisible--">firePopupMenuWillBecomeVisible</a></span>()</code>
<div class="block">
              通知 
             <code>PopupMenuListener</code> s这个弹出菜单将变得可见。 
            </div> </td>
</tr>
<tr class="rowColor" id="i11">
<td class="colFirst"><code><a href="../../javax/accessibility/AccessibleContext.html" title="class in javax.accessibility">AccessibleContext</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getAccessibleContext--">getAccessibleContext</a></span>()</code>
<div class="block">
              获取与此JPopupMenu关联的AccessibleContext。 
            </div> </td>
</tr>
<tr class="altColor" id="i12">
<td class="colFirst"><code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getComponent--">getComponent</a></span>()</code>
<div class="block">
              返回此 
             <code>JPopupMenu</code>组件。 
            </div> </td>
</tr>
<tr class="rowColor" id="i13">
<td class="colFirst"><code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getComponentAtIndex-int-">getComponentAtIndex</a></span>(int i)</code>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<div class="block">
<span><span class="deprecationComment">取代<a href="../../java/awt/Container.html#getComponent-int-"><code>Container.getComponent(int)</code></a></span></span>
</div>
</div> </td>
</tr>
<tr class="altColor" id="i14">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getComponentIndex-java.awt.Component-">getComponentIndex</a></span>(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> c)</code>
<div class="block">
              返回指定组件的索引。 
            </div> </td>
</tr>
<tr class="rowColor" id="i15">
<td class="colFirst"><code>static boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getDefaultLightWeightPopupEnabled--">getDefaultLightWeightPopupEnabled</a></span>()</code>
<div class="block">
              获取 
             <code>defaultLightWeightPopupEnabled</code>属性，默认为 
             <code>true</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i16">
<td class="colFirst"><code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getInvoker--">getInvoker</a></span>()</code>
<div class="block">
              返回该弹出菜单的“调用者”组件。 
            </div> </td>
</tr>
<tr class="rowColor" id="i17">
<td class="colFirst"><code><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getLabel--">getLabel</a></span>()</code>
<div class="block">
              返回弹出菜单的标签 
            </div> </td>
</tr>
<tr class="altColor" id="i18">
<td class="colFirst"><code><a href="../../java/awt/Insets.html" title="class in java.awt">Insets</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getMargin--">getMargin</a></span>()</code>
<div class="block">
              返回弹出菜单的边框和容器之间的边距（以像素为单位）。 
            </div> </td>
</tr>
<tr class="rowColor" id="i19">
<td class="colFirst"><code><a href="../../javax/swing/event/MenuKeyListener.html" title="interface in javax.swing.event">MenuKeyListener</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getMenuKeyListeners--">getMenuKeyListeners</a></span>()</code>
<div class="block">
              返回使用addMenuKeyListener（）添加到此JPopupMenu的所有 
             <code>MenuKeyListener</code>的数组。 
            </div> </td>
</tr>
<tr class="altColor" id="i20">
<td class="colFirst"><code><a href="../../javax/swing/event/PopupMenuListener.html" title="interface in javax.swing.event">PopupMenuListener</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getPopupMenuListeners--">getPopupMenuListeners</a></span>()</code>
<div class="block">
              返回使用addPopupMenuListener（）添加到该JMenuItem的所有 
             <code>PopupMenuListener</code>的数组。 
            </div> </td>
</tr>
<tr class="rowColor" id="i21">
<td class="colFirst"><code><a href="../../javax/swing/SingleSelectionModel.html" title="interface in javax.swing">SingleSelectionModel</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getSelectionModel--">getSelectionModel</a></span>()</code>
<div class="block">
              返回处理单个选择的模型对象。 
            </div> </td>
</tr>
<tr class="altColor" id="i22">
<td class="colFirst"><code><a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getSubElements--">getSubElements</a></span>()</code>
<div class="block">
              返回包含此菜单组件子菜单的 
             <code>MenuElement</code> s数组。 
            </div> </td>
</tr>
<tr class="rowColor" id="i23">
<td class="colFirst"><code><a href="../../javax/swing/plaf/PopupMenuUI.html" title="class in javax.swing.plaf">PopupMenuUI</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getUI--">getUI</a></span>()</code>
<div class="block">
              返回渲染此组件的外观和感觉（L＆F）对象。 
            </div> </td>
</tr>
<tr class="altColor" id="i24">
<td class="colFirst"><code><a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#getUIClassID--">getUIClassID</a></span>()</code>
<div class="block">
              返回呈现此组件的L＆F类的名称。 
            </div> </td>
</tr>
<tr class="rowColor" id="i25">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#insert-javax.swing.Action-int-">insert</a></span>(<a href="../../javax/swing/Action.html" title="interface in javax.swing">Action</a> a, int index)</code>
<div class="block">
              在给定位置插入指定的 
             <code>Action</code>对象的菜单项。 
            </div> </td>
</tr>
<tr class="altColor" id="i26">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#insert-java.awt.Component-int-">insert</a></span>(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> component, int index)</code>
<div class="block">
              将指定的组件插入到给定位置的菜单中。 
            </div> </td>
</tr>
<tr class="rowColor" id="i27">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#isBorderPainted--">isBorderPainted</a></span>()</code>
<div class="block">
              检查边框是否应该涂漆。 
            </div> </td>
</tr>
<tr class="altColor" id="i28">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#isLightWeightPopupEnabled--">isLightWeightPopupEnabled</a></span>()</code>
<div class="block">
              获取 
             <code>lightWeightPopupEnabled</code>属性。 
            </div> </td>
</tr>
<tr class="rowColor" id="i29">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#isPopupTrigger-java.awt.event.MouseEvent-">isPopupTrigger</a></span>(<a href="../../java/awt/event/MouseEvent.html" title="class in java.awt.event">MouseEvent</a> e)</code>
<div class="block">
              如果 
             <code>MouseEvent</code>被JPopupMenu当前安装的UI 
             <code>JPopupMenu</code>弹出式触发器，则返回true。 
            </div> </td>
</tr>
<tr class="altColor" id="i30">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#isVisible--">isVisible</a></span>()</code>
<div class="block">
              如果弹出菜单可见（正在显示），则返回true。 
            </div> </td>
</tr>
<tr class="rowColor" id="i31">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#menuSelectionChanged-boolean-">menuSelectionChanged</a></span>(boolean isIncluded)</code>
<div class="block">
              当菜单选择更改以激活或停用此菜单时发生消息。 
            </div> </td>
</tr>
<tr class="altColor" id="i32">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#pack--">pack</a></span>()</code>
<div class="block">
              放出容器，使其使用显示其内容所需的最小空间。 
            </div> </td>
</tr>
<tr class="rowColor" id="i33">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#paintBorder-java.awt.Graphics-">paintBorder</a></span>(<a href="../../java/awt/Graphics.html" title="class in java.awt">Graphics</a> g)</code>
<div class="block">
              如果 
             <code>borderPainted</code>属性为 
             <code>true</code>则绘制弹出菜单的边框。 
            </div> </td>
</tr>
<tr class="altColor" id="i34">
<td class="colFirst"><code>protected <a href="../../java/lang/String.html" title="class in java.lang">String</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#paramString--">paramString</a></span>()</code>
<div class="block">
              返回此 
             <code>JPopupMenu</code>的字符串表示 
             <code>JPopupMenu</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i35">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#processFocusEvent-java.awt.event.FocusEvent-">processFocusEvent</a></span>(<a href="../../java/awt/event/FocusEvent.html" title="class in java.awt.event">FocusEvent</a> evt)</code>
<div class="block">
              通过将其分发到任何已注册的 
             <code>FocusListener</code>对象来处理发生在该组件上的焦点事件。 
            </div> </td>
</tr>
<tr class="altColor" id="i36">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#processKeyEvent-java.awt.event.KeyEvent-">processKeyEvent</a></span>(<a href="../../java/awt/event/KeyEvent.html" title="class in java.awt.event">KeyEvent</a> evt)</code>
<div class="block">
              处理关键笔划事件，如助记符和加速器。 
            </div> </td>
</tr>
<tr class="rowColor" id="i37">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#processKeyEvent-java.awt.event.KeyEvent-javax.swing.MenuElement:A-javax.swing.MenuSelectionManager-">processKeyEvent</a></span>(<a href="../../java/awt/event/KeyEvent.html" title="class in java.awt.event">KeyEvent</a> e, <a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a>[] path, <a href="../../javax/swing/MenuSelectionManager.html" title="class in javax.swing">MenuSelectionManager</a> manager)</code>
<div class="block">
              处理从MenuSelectionManager转发的密钥事件，并根据 
             <code>MenuSelectionManager</code>更改菜单选项，方法是使用 
             <code>MenuSelectionManager</code>的API。 
            </div> </td>
</tr>
<tr class="altColor" id="i38">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#processMouseEvent-java.awt.event.MouseEvent-javax.swing.MenuElement:A-javax.swing.MenuSelectionManager-">processMouseEvent</a></span>(<a href="../../java/awt/event/MouseEvent.html" title="class in java.awt.event">MouseEvent</a> event, <a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a>[] path, <a href="../../javax/swing/MenuSelectionManager.html" title="class in javax.swing">MenuSelectionManager</a> manager)</code>
<div class="block">
              这种方法需要符合 
             <code>MenuElement</code>接口，但是没有实现。 
            </div> </td>
</tr>
<tr class="rowColor" id="i39">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#remove-int-">remove</a></span>(int pos)</code>
<div class="block">
              从该弹出菜单中删除指定索引处的组件。 
            </div> </td>
</tr>
<tr class="altColor" id="i40">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#removeMenuKeyListener-javax.swing.event.MenuKeyListener-">removeMenuKeyListener</a></span>(<a href="../../javax/swing/event/MenuKeyListener.html" title="interface in javax.swing.event">MenuKeyListener</a> l)</code>
<div class="block">
              从弹出菜单中删除 
             <code>MenuKeyListener</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i41">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#removePopupMenuListener-javax.swing.event.PopupMenuListener-">removePopupMenuListener</a></span>(<a href="../../javax/swing/event/PopupMenuListener.html" title="interface in javax.swing.event">PopupMenuListener</a> l)</code>
<div class="block">
              删除一个 
             <code>PopupMenu</code>监听器。 
            </div> </td>
</tr>
<tr class="altColor" id="i42">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setBorderPainted-boolean-">setBorderPainted</a></span>(boolean b)</code>
<div class="block">
              设置是否应绘制边框。 
            </div> </td>
</tr>
<tr class="rowColor" id="i43">
<td class="colFirst"><code>static void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setDefaultLightWeightPopupEnabled-boolean-">setDefaultLightWeightPopupEnabled</a></span>(boolean aFlag)</code>
<div class="block">
              设置 
             <code>lightWeightPopupEnabled</code>属性的默认值。 
            </div> </td>
</tr>
<tr class="altColor" id="i44">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setInvoker-java.awt.Component-">setInvoker</a></span>(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> invoker)</code>
<div class="block">
              设置此弹出菜单的调用者 - 要显示弹出菜单菜单的组件。 
            </div> </td>
</tr>
<tr class="rowColor" id="i45">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setLabel-java.lang.String-">setLabel</a></span>(<a href="../../java/lang/String.html" title="class in java.lang">String</a> label)</code>
<div class="block">
              设置弹出菜单的标签。 
            </div> </td>
</tr>
<tr class="altColor" id="i46">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setLightWeightPopupEnabled-boolean-">setLightWeightPopupEnabled</a></span>(boolean aFlag)</code>
<div class="block">
              设置 
             <code>lightWeightPopupEnabled</code>属性的值，默认值为 
             <code>true</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i47">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setLocation-int-int-">setLocation</a></span>(int x, int y)</code>
<div class="block">
              使用x，y坐标设置弹出菜单左上角的位置。 
            </div> </td>
</tr>
<tr class="altColor" id="i48">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setPopupSize-java.awt.Dimension-">setPopupSize</a></span>(<a href="../../java/awt/Dimension.html" title="class in java.awt">Dimension</a> d)</code>
<div class="block">
              使用 
             <code>Dimension</code>对象设置弹出窗口的大小。 
            </div> </td>
</tr>
<tr class="rowColor" id="i49">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setPopupSize-int-int-">setPopupSize</a></span>(int width, int height)</code>
<div class="block">
              将Popup窗口的大小设置为指定的宽度和高度。 
            </div> </td>
</tr>
<tr class="altColor" id="i50">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setSelected-java.awt.Component-">setSelected</a></span>(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> sel)</code>
<div class="block">
              设置当前选择的组件，这将导致选择模型的更改。 
            </div> </td>
</tr>
<tr class="rowColor" id="i51">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setSelectionModel-javax.swing.SingleSelectionModel-">setSelectionModel</a></span>(<a href="../../javax/swing/SingleSelectionModel.html" title="interface in javax.swing">SingleSelectionModel</a> model)</code>
<div class="block">
              设置模型对象以处理单个选择。 
            </div> </td>
</tr>
<tr class="altColor" id="i52">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setUI-javax.swing.plaf.PopupMenuUI-">setUI</a></span>(<a href="../../javax/swing/plaf/PopupMenuUI.html" title="class in javax.swing.plaf">PopupMenuUI</a> ui)</code>
<div class="block">
              设置渲染此组件的L＆F对象。 
            </div> </td>
</tr>
<tr class="rowColor" id="i53">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#setVisible-boolean-">setVisible</a></span>(boolean b)</code>
<div class="block">
              设置弹出菜单的可见性。 
            </div> </td>
</tr>
<tr class="altColor" id="i54">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#show-java.awt.Component-int-int-">show</a></span>(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> invoker, int x, int y)</code>
<div class="block">
              在组件调用者的坐标空间中的位置x，y处显示弹出式菜单。 
            </div> </td>
</tr>
<tr class="rowColor" id="i55">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/JPopupMenu.html#updateUI--">updateUI</a></span>()</code>
<div class="block">
              将UI属性重置为当前外观的值。 
            </div> </td>
</tr>
</tbody>
</table>
<ul class="blockList">
<li class="blockList"><a name="methods.inherited.from.class.javax.swing.JComponent">
<!-- --> </a> <h3>Methods inherited from class javax.swing.<a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></h3> <code><a href="../../javax/swing/JComponent.html#addAncestorListener-javax.swing.event.AncestorListener-">addAncestorListener</a>, <a href="../../javax/swing/JComponent.html#addNotify--">addNotify</a>, <a href="../../javax/swing/JComponent.html#addVetoableChangeListener-java.beans.VetoableChangeListener-">addVetoableChangeListener</a>, <a href="../../javax/swing/JComponent.html#computeVisibleRect-java.awt.Rectangle-">computeVisibleRect</a>, <a href="../../javax/swing/JComponent.html#contains-int-int-">contains</a>, <a href="../../javax/swing/JComponent.html#createToolTip--">createToolTip</a>, <a href="../../javax/swing/JComponent.html#disable--">disable</a>, <a href="../../javax/swing/JComponent.html#enable--">enable</a>, <a href="../../javax/swing/JComponent.html#firePropertyChange-java.lang.String-boolean-boolean-">firePropertyChange</a>, <a href="../../javax/swing/JComponent.html#firePropertyChange-java.lang.String-char-char-">firePropertyChange</a>, <a href="../../javax/swing/JComponent.html#firePropertyChange-java.lang.String-int-int-">firePropertyChange</a>, <a href="../../javax/swing/JComponent.html#fireVetoableChange-java.lang.String-java.lang.Object-java.lang.Object-">fireVetoableChange</a>, <a href="../../javax/swing/JComponent.html#getActionForKeyStroke-javax.swing.KeyStroke-">getActionForKeyStroke</a>, <a href="../../javax/swing/JComponent.html#getActionMap--">getActionMap</a>, <a href="../../javax/swing/JComponent.html#getAlignmentX--">getAlignmentX</a>, <a href="../../javax/swing/JComponent.html#getAlignmentY--">getAlignmentY</a>, <a href="../../javax/swing/JComponent.html#getAncestorListeners--">getAncestorListeners</a>, <a href="../../javax/swing/JComponent.html#getAutoscrolls--">getAutoscrolls</a>, <a href="../../javax/swing/JComponent.html#getBaseline-int-int-">getBaseline</a>, <a href="../../javax/swing/JComponent.html#getBaselineResizeBehavior--">getBaselineResizeBehavior</a>, <a href="../../javax/swing/JComponent.html#getBorder--">getBorder</a>, <a href="../../javax/swing/JComponent.html#getBounds-java.awt.Rectangle-">getBounds</a>, <a href="../../javax/swing/JComponent.html#getClientProperty-java.lang.Object-">getClientProperty</a>, <a href="../../javax/swing/JComponent.html#getComponentGraphics-java.awt.Graphics-">getComponentGraphics</a>, <a href="../../javax/swing/JComponent.html#getComponentPopupMenu--">getComponentPopupMenu</a>, <a href="../../javax/swing/JComponent.html#getConditionForKeyStroke-javax.swing.KeyStroke-">getConditionForKeyStroke</a>, <a href="../../javax/swing/JComponent.html#getDebugGraphicsOptions--">getDebugGraphicsOptions</a>, <a href="../../javax/swing/JComponent.html#getDefaultLocale--">getDefaultLocale</a>, <a href="../../javax/swing/JComponent.html#getFontMetrics-java.awt.Font-">getFontMetrics</a>, <a href="../../javax/swing/JComponent.html#getGraphics--">getGraphics</a>, <a href="../../javax/swing/JComponent.html#getHeight--">getHeight</a>, <a href="../../javax/swing/JComponent.html#getInheritsPopupMenu--">getInheritsPopupMenu</a>, <a href="../../javax/swing/JComponent.html#getInputMap--">getInputMap</a>, <a href="../../javax/swing/JComponent.html#getInputMap-int-">getInputMap</a>, <a href="../../javax/swing/JComponent.html#getInputVerifier--">getInputVerifier</a>, <a href="../../javax/swing/JComponent.html#getInsets--">getInsets</a>, <a href="../../javax/swing/JComponent.html#getInsets-java.awt.Insets-">getInsets</a>, <a href="../../javax/swing/JComponent.html#getListeners-java.lang.Class-">getListeners</a>, <a href="../../javax/swing/JComponent.html#getLocation-java.awt.Point-">getLocation</a>, <a href="../../javax/swing/JComponent.html#getMaximumSize--">getMaximumSize</a>, <a href="../../javax/swing/JComponent.html#getMinimumSize--">getMinimumSize</a>, <a href="../../javax/swing/JComponent.html#getNextFocusableComponent--">getNextFocusableComponent</a>, <a href="../../javax/swing/JComponent.html#getPopupLocation-java.awt.event.MouseEvent-">getPopupLocation</a>, <a href="../../javax/swing/JComponent.html#getPreferredSize--">getPreferredSize</a>, <a href="../../javax/swing/JComponent.html#getRegisteredKeyStrokes--">getRegisteredKeyStrokes</a>, <a href="../../javax/swing/JComponent.html#getRootPane--">getRootPane</a>, <a href="../../javax/swing/JComponent.html#getSize-java.awt.Dimension-">getSize</a>, <a href="../../javax/swing/JComponent.html#getToolTipLocation-java.awt.event.MouseEvent-">getToolTipLocation</a>, <a href="../../javax/swing/JComponent.html#getToolTipText--">getToolTipText</a>, <a href="../../javax/swing/JComponent.html#getToolTipText-java.awt.event.MouseEvent-">getToolTipText</a>, <a href="../../javax/swing/JComponent.html#getTopLevelAncestor--">getTopLevelAncestor</a>, <a href="../../javax/swing/JComponent.html#getTransferHandler--">getTransferHandler</a>, <a href="../../javax/swing/JComponent.html#getVerifyInputWhenFocusTarget--">getVerifyInputWhenFocusTarget</a>, <a href="../../javax/swing/JComponent.html#getVetoableChangeListeners--">getVetoableChangeListeners</a>, <a href="../../javax/swing/JComponent.html#getVisibleRect--">getVisibleRect</a>, <a href="../../javax/swing/JComponent.html#getWidth--">getWidth</a>, <a href="../../javax/swing/JComponent.html#getX--">getX</a>, <a href="../../javax/swing/JComponent.html#getY--">getY</a>, <a href="../../javax/swing/JComponent.html#grabFocus--">grabFocus</a>, <a href="../../javax/swing/JComponent.html#hide--">hide</a>, <a href="../../javax/swing/JComponent.html#isDoubleBuffered--">isDoubleBuffered</a>, <a href="../../javax/swing/JComponent.html#isLightweightComponent-java.awt.Component-">isLightweightComponent</a>, <a href="../../javax/swing/JComponent.html#isManagingFocus--">isManagingFocus</a>, <a href="../../javax/swing/JComponent.html#isOpaque--">isOpaque</a>, <a href="../../javax/swing/JComponent.html#isOptimizedDrawingEnabled--">isOptimizedDrawingEnabled</a>, <a href="../../javax/swing/JComponent.html#isPaintingForPrint--">isPaintingForPrint</a>, <a href="../../javax/swing/JComponent.html#isPaintingOrigin--">isPaintingOrigin</a>, <a href="../../javax/swing/JComponent.html#isPaintingTile--">isPaintingTile</a>, <a href="../../javax/swing/JComponent.html#isRequestFocusEnabled--">isRequestFocusEnabled</a>, <a href="../../javax/swing/JComponent.html#isValidateRoot--">isValidateRoot</a>, <a href="../../javax/swing/JComponent.html#paint-java.awt.Graphics-">paint</a>, <a href="../../javax/swing/JComponent.html#paintChildren-java.awt.Graphics-">paintChildren</a>, <a href="../../javax/swing/JComponent.html#paintComponent-java.awt.Graphics-">paintComponent</a>, <a href="../../javax/swing/JComponent.html#paintImmediately-int-int-int-int-">paintImmediately</a>, <a href="../../javax/swing/JComponent.html#paintImmediately-java.awt.Rectangle-">paintImmediately</a>, <a href="../../javax/swing/JComponent.html#print-java.awt.Graphics-">print</a>, <a href="../../javax/swing/JComponent.html#printAll-java.awt.Graphics-">printAll</a>, <a href="../../javax/swing/JComponent.html#printBorder-java.awt.Graphics-">printBorder</a>, <a href="../../javax/swing/JComponent.html#printChildren-java.awt.Graphics-">printChildren</a>, <a href="../../javax/swing/JComponent.html#printComponent-java.awt.Graphics-">printComponent</a>, <a href="../../javax/swing/JComponent.html#processComponentKeyEvent-java.awt.event.KeyEvent-">processComponentKeyEvent</a>, <a href="../../javax/swing/JComponent.html#processKeyBinding-javax.swing.KeyStroke-java.awt.event.KeyEvent-int-boolean-">processKeyBinding</a>, <a href="../../javax/swing/JComponent.html#processMouseEvent-java.awt.event.MouseEvent-">processMouseEvent</a>, <a href="../../javax/swing/JComponent.html#processMouseMotionEvent-java.awt.event.MouseEvent-">processMouseMotionEvent</a>, <a href="../../javax/swing/JComponent.html#putClientProperty-java.lang.Object-java.lang.Object-">putClientProperty</a>, <a href="../../javax/swing/JComponent.html#registerKeyboardAction-java.awt.event.ActionListener-javax.swing.KeyStroke-int-">registerKeyboardAction</a>, <a href="../../javax/swing/JComponent.html#registerKeyboardAction-java.awt.event.ActionListener-java.lang.String-javax.swing.KeyStroke-int-">registerKeyboardAction</a>, <a href="../../javax/swing/JComponent.html#removeAncestorListener-javax.swing.event.AncestorListener-">removeAncestorListener</a>, <a 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<li class="blockList"> <h4>JPopupMenu</h4> <pre>public JPopupMenu()</pre>
<div class="block">
            构造一个没有“调用者”的 
           <code>JPopupMenu</code> 。 
          </div> </li>
</ul> <a name="JPopupMenu-java.lang.String-">
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<ul class="blockListLast">
<li class="blockList"> <h4>JPopupMenu</h4> <pre>public JPopupMenu(<a href="../../java/lang/String.html" title="class in java.lang">String</a> label)</pre>
<div class="block">
            构造一个 
           <code>JPopupMenu</code>具有指定标题。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>label</code> - UI可能用于显示为弹出菜单的标题的字符串。 
           </dd>
</dl> </li>
</ul> </li>
</ul>
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<ul class="blockList">
<li class="blockList"><a name="method.detail">
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<ul class="blockList">
<li class="blockList"> <h4>setDefaultLightWeightPopupEnabled</h4> <pre>public static void setDefaultLightWeightPopupEnabled(boolean aFlag)</pre>
<div class="block">
            设置 
           <code>lightWeightPopupEnabled</code>属性的默认值。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>aFlag</code> - 
            <code>true</code>如果弹出窗口可以轻量化，否则 
            <code>false</code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#getDefaultLightWeightPopupEnabled--"><code>getDefaultLightWeightPopupEnabled()</code></a> ， 
            <a href="../../javax/swing/JPopupMenu.html#setLightWeightPopupEnabled-boolean-"><code>setLightWeightPopupEnabled(boolean)</code></a>
</dd>
</dl> </li>
</ul> <a name="getDefaultLightWeightPopupEnabled--">
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<ul class="blockList">
<li class="blockList"> <h4>getDefaultLightWeightPopupEnabled</h4> <pre>public static boolean getDefaultLightWeightPopupEnabled()</pre>
<div class="block">
            获取 
           <code>defaultLightWeightPopupEnabled</code>属性，默认为 
           <code>true</code> 。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             该值为 
            <code>defaultLightWeightPopupEnabled</code>属性 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#setDefaultLightWeightPopupEnabled-boolean-"><code>setDefaultLightWeightPopupEnabled(boolean)</code></a>
</dd>
</dl> </li>
</ul> <a name="getUI--">
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<ul class="blockList">
<li class="blockList"> <h4>getUI</h4> <pre>public <a href="../../javax/swing/plaf/PopupMenuUI.html" title="class in javax.swing.plaf">PopupMenuUI</a> getUI()</pre>
<div class="block">
            返回渲染此组件的外观和感觉（L＆F）对象。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             呈现此组件的 
            <code>PopupMenuUI</code>对象 
           </dd>
</dl> </li>
</ul> <a name="setUI-javax.swing.plaf.PopupMenuUI-">
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<ul class="blockList">
<li class="blockList"> <h4>setUI</h4> <pre>public void setUI(<a href="../../javax/swing/plaf/PopupMenuUI.html" title="class in javax.swing.plaf">PopupMenuUI</a> ui)</pre>
<div class="block">
            设置渲染此组件的L＆F对象。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>ui</code> - 新的 
            <code>PopupMenuUI</code> L＆F对象 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/UIDefaults.html#getUI-javax.swing.JComponent-"><code>UIDefaults.getUI(javax.swing.JComponent)</code></a>
</dd>
</dl> </li>
</ul> <a name="updateUI--">
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<ul class="blockList">
<li class="blockList"> <h4>updateUI</h4> <pre>public void updateUI()</pre>
<div class="block">
            将UI属性重置为当前外观的值。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#updateUI--">updateUI</a></code>在类 
            <code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#updateUI--"><code>JComponent.updateUI()</code></a>
</dd>
</dl> </li>
</ul> <a name="getUIClassID--">
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<ul class="blockList">
<li class="blockList"> <h4>getUIClassID</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> getUIClassID()</pre>
<div class="block">
            返回呈现此组件的L＆F类的名称。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#getUIClassID--">getUIClassID</a></code>在 
            <code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             字符串“PopupMenuUI” 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#getUIClassID--"><code>JComponent.getUIClassID()</code></a> ， 
            <a href="../../javax/swing/UIDefaults.html#getUI-javax.swing.JComponent-"><code>UIDefaults.getUI(javax.swing.JComponent)</code></a>
</dd>
</dl> </li>
</ul> <a name="processFocusEvent-java.awt.event.FocusEvent-">
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<ul class="blockList">
<li class="blockList"> <h4>processFocusEvent</h4> <pre>protected void processFocusEvent(<a href="../../java/awt/event/FocusEvent.html" title="class in java.awt.event">FocusEvent</a> evt)</pre>
<div class="block">
<span class="descfrmTypeLabel">描述从类别复制： <code><a href="../../java/awt/Component.html#processFocusEvent-java.awt.event.FocusEvent-">Component</a></code></span>
</div>
<div class="block">
<span>通过将其分发到任何已注册的<code>FocusListener</code>对象来处理在此组件上发生的焦点事件。</span>
<p> <span>除非为此组件启用聚焦事件，否则不会调用此方法。</span> <span>当以下情况发生时，聚焦事件将被启用：</span> </p>
<ul>
<li> <span>一个<code>FocusListener</code>对象通过<code>addFocusListener</code> 。</span> </li>
<li> <span>焦点事件通过<code>enableEvents</code>启用。</span> </li>
</ul>
<p> <span>如果对于<code>Component</code>启用了焦点事件，当前的<code>KeyboardFocusManager</code>将确定是否应将焦点事件发送到已注册的<code>FocusListener</code>对象。</span> <span>如果要发送事件， <code>KeyboardFocusManager</code>调用<code>Component</code>的<code>dispatchEvent</code>方法，这将调用<code>Component</code>的<code>processFocusEvent</code>方法。</span> </p>
<p> <span>如果<code>Component</code>启用了焦点事件，则调用<code>Component</code>的<code>dispatchEvent</code>方法以<code>FocusEvent</code>作为参数，将导致调用<code>Component</code>的<code>processFocusEvent</code>方法，而不管当前的<code>KeyboardFocusManager</code> 。</span> </p>
<p> <span>请注意，如果事件参数为<code>null</code>则行为未指定，可能会导致异常。</span> </p>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../java/awt/Component.html#processFocusEvent-java.awt.event.FocusEvent-">processFocusEvent</a></code>在类 
            <code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>evt</code> - 焦点事件 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../java/awt/event/FocusEvent.html" title="java.awt.event中的类"><code>FocusEvent</code></a> ， <a href="../../java/awt/event/FocusListener.html" title="java.awt.event中的接口"><code>FocusListener</code></a> ， <a href="../../java/awt/KeyboardFocusManager.html" title="java.awt中的类"><code>KeyboardFocusManager</code></a> ， <a href="../../java/awt/Component.html#addFocusListener-java.awt.event.FocusListener-"><code>Component.addFocusListener(java.awt.event.FocusListener)</code></a> ， <a href="../../java/awt/Component.html#enableEvents-long-"><code>Component.enableEvents(long)</code></a> ， <a href="../../java/awt/Component.html#dispatchEvent-java.awt.AWTEvent-"><code>Component.dispatchEvent(java.awt.AWTEvent)</code></a></span>
</dd>
</dl> </li>
</ul> <a name="processKeyEvent-java.awt.event.KeyEvent-">
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<ul class="blockList">
<li class="blockList"> <h4>processKeyEvent</h4> <pre>protected void processKeyEvent(<a href="../../java/awt/event/KeyEvent.html" title="class in java.awt.event">KeyEvent</a> evt)</pre>
<div class="block">
            处理关键笔划事件，如助记符和加速器。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#processKeyEvent-java.awt.event.KeyEvent-">processKeyEvent</a></code>在 
            <code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>evt</code> - 要处理的关键事件 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../java/awt/event/KeyEvent.html" title="java.awt.event中的类"><code>KeyEvent</code></a> ， <a href="../../java/awt/event/KeyListener.html" title="java.awt.event中的接口"><code>KeyListener</code></a> ， <a href="../../java/awt/KeyboardFocusManager.html" title="java.awt中的类"><code>KeyboardFocusManager</code></a> ， <a href="../../java/awt/DefaultKeyboardFocusManager.html" title="java.awt中的类"><code>DefaultKeyboardFocusManager</code></a> ， <a href="../../java/awt/Component.html#processEvent-java.awt.AWTEvent-"><code>Component.processEvent(java.awt.AWTEvent)</code></a> ， <a href="../../java/awt/Component.html#dispatchEvent-java.awt.AWTEvent-"><code>Component.dispatchEvent(java.awt.AWTEvent)</code></a> ， <a href="../../java/awt/Component.html#addKeyListener-java.awt.event.KeyListener-"><code>Component.addKeyListener(java.awt.event.KeyListener)</code></a> ， <a href="../../java/awt/Component.html#enableEvents-long-"><code>Component.enableEvents(long)</code></a> ， <a href="../../java/awt/Component.html#isShowing--"><code>Component.isShowing()</code></a></span>
</dd>
</dl> </li>
</ul> <a name="getSelectionModel--">
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<ul class="blockList">
<li class="blockList"> <h4>getSelectionModel</h4> <pre>public <a href="../../javax/swing/SingleSelectionModel.html" title="interface in javax.swing">SingleSelectionModel</a> getSelectionModel()</pre>
<div class="block">
            返回处理单个选择的模型对象。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>selectionModel</code>属性 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/SingleSelectionModel.html" title="javax.swing中的接口"><code>SingleSelectionModel</code></a></span>
</dd>
</dl> </li>
</ul> <a name="setSelectionModel-javax.swing.SingleSelectionModel-">
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<ul class="blockList">
<li class="blockList"> <h4>setSelectionModel</h4> <pre>public void setSelectionModel(<a href="../../javax/swing/SingleSelectionModel.html" title="interface in javax.swing">SingleSelectionModel</a> model)</pre>
<div class="block">
            设置模型对象以处理单个选择。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>model</code> - 全新 
            <code>SingleSelectionModel</code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/SingleSelectionModel.html" title="javax.swing中的接口"><code>SingleSelectionModel</code></a></span>
</dd>
</dl> </li>
</ul> <a name="add-javax.swing.JMenuItem-">
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<ul class="blockList">
<li class="blockList"> <h4>add</h4> <pre>public <a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> add(<a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> menuItem)</pre>
<div class="block">
            将指定的菜单项追加到此菜单的末尾。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>menuItem</code> - 要添加的 
            <code>JMenuItem</code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>JMenuItem</code>加了 
           </dd>
</dl> </li>
</ul> <a name="add-java.lang.String-">
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<ul class="blockList">
<li class="blockList"> <h4>add</h4> <pre>public <a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> add(<a href="../../java/lang/String.html" title="class in java.lang">String</a> s)</pre>
<div class="block">
            创建一个带有指定文本的新菜单项，并将其附加到此菜单的末尾。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>s</code> - 要添加的菜单项的字符串 
           </dd>
</dl> </li>
</ul> <a name="add-javax.swing.Action-">
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<ul class="blockList">
<li class="blockList"> <h4>add</h4> <pre>public <a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> add(<a href="../../javax/swing/Action.html" title="interface in javax.swing">Action</a> a)</pre>
<div class="block">
            在菜单的末尾附加一个新菜单项，该菜单将调度指定的 
           <code>Action</code>对象。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>a</code> - 添加到菜单中的 
            <code>Action</code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             新的菜单项 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/Action.html" title="javax.swing中的接口"><code>Action</code></a></span>
</dd>
</dl> </li>
</ul> <a name="createActionComponent-javax.swing.Action-">
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<ul class="blockList">
<li class="blockList"> <h4>createActionComponent</h4> <pre>protected <a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> createActionComponent(<a href="../../javax/swing/Action.html" title="interface in javax.swing">Action</a> a)</pre>
<div class="block">
            为 
           <code>Actions</code>创建 
           <code>JMenuItem</code>工厂方法添加到 
           <code>JPopupMenu</code> 。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>a</code> - 要添加的菜单项的 
            <code>Action</code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             新的菜单项 
           </dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.3 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/Action.html" title="javax.swing中的接口"><code>Action</code></a></span>
</dd>
</dl> </li>
</ul> <a name="createActionChangeListener-javax.swing.JMenuItem-">
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<ul class="blockList">
<li class="blockList"> <h4>createActionChangeListener</h4> <pre>protected <a href="../../java/beans/PropertyChangeListener.html" title="interface in java.beans">PropertyChangeListener</a> createActionChangeListener(<a href="../../javax/swing/JMenuItem.html" title="class in javax.swing">JMenuItem</a> b)</pre>
<div class="block">
            返回正确配置的 
           <code>PropertyChangeListener</code> ，更新控件，因为发生了 
           <code>Action</code>更改。 
          </div> </li>
</ul> <a name="remove-int-">
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<ul class="blockList">
<li class="blockList"> <h4>remove</h4> <pre>public void remove(int pos)</pre>
<div class="block">
            从该弹出菜单中删除指定索引处的组件。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../java/awt/Container.html#remove-int-">remove</a></code>在类 
            <code><a href="../../java/awt/Container.html" title="class in java.awt">Container</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>pos</code> - 要删除的项目的位置 
           </dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果值为 
            <code>pos</code> &lt;0，或者如果 
            <code>pos</code>的值大于项数 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../java/awt/Container.html#add-java.awt.Component-"><code>Container.add(java.awt.Component)</code></a> ， 
            <a href="../../java/awt/Container.html#invalidate--"><code>Container.invalidate()</code></a> ， 
            <a href="../../java/awt/Container.html#validate--"><code>Container.validate()</code></a> ， 
            <a href="../../java/awt/Container.html#getComponentCount--"><code>Container.getComponentCount()</code></a>
</dd>
</dl> </li>
</ul> <a name="setLightWeightPopupEnabled-boolean-">
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<ul class="blockList">
<li class="blockList"> <h4>setLightWeightPopupEnabled</h4> <pre>public void setLightWeightPopupEnabled(boolean aFlag)</pre>
<div class="block">
<span>设置<code>lightWeightPopupEnabled</code>属性的值，默认值为<code>true</code> 。</span>
<span>默认情况下，当外观显示弹出窗口时，可以选择使用轻量级（全Java）弹出窗口。</span>
<span>轻量级弹出窗口比重量级（本机对等体）窗口更有效，但轻量级和重量级组件在GUI中不能很好地混合。</span>
<span>如果您的应用程序混合轻量级和重量级组件，则应禁用轻量级弹出窗口。</span>
<span>一些看起来和感觉可能总是使用重量级的弹出窗口，无论这个属性的价值。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>aFlag</code> - 
            <code>false</code>以禁用轻量级弹出窗口 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#isLightWeightPopupEnabled--"><code>isLightWeightPopupEnabled()</code></a>
</dd>
</dl> </li>
</ul> <a name="isLightWeightPopupEnabled--">
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<ul class="blockList">
<li class="blockList"> <h4>isLightWeightPopupEnabled</h4> <pre>public boolean isLightWeightPopupEnabled()</pre>
<div class="block">
            获取 
           <code>lightWeightPopupEnabled</code>属性。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             的价值 
            <code>lightWeightPopupEnabled</code>属性 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#setLightWeightPopupEnabled-boolean-"><code>setLightWeightPopupEnabled(boolean)</code></a>
</dd>
</dl> </li>
</ul> <a name="getLabel--">
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<ul class="blockList">
<li class="blockList"> <h4>getLabel</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> getLabel()</pre>
<div class="block">
            返回弹出菜单的标签 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             一个包含弹出菜单标签的字符串 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#setLabel-java.lang.String-"><code>setLabel(java.lang.String)</code></a>
</dd>
</dl> </li>
</ul> <a name="setLabel-java.lang.String-">
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<ul class="blockList">
<li class="blockList"> <h4>setLabel</h4> <pre>public void setLabel(<a href="../../java/lang/String.html" title="class in java.lang">String</a> label)</pre>
<div class="block">
<span>设置弹出菜单的标签。</span>
<span>不同的外观和感觉可能会选择显示或不显示。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>label</code> - 一个字符串，指定弹出菜单的标签 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#setLabel-java.lang.String-"><code>setLabel(java.lang.String)</code></a>
</dd>
</dl> </li>
</ul> <a name="addSeparator--">
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<ul class="blockList">
<li class="blockList"> <h4>addSeparator</h4> <pre>public void addSeparator()</pre>
<div class="block">
            在菜单末尾附加一个新的分隔符。 
          </div> </li>
</ul> <a name="insert-javax.swing.Action-int-">
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<ul class="blockList">
<li class="blockList"> <h4>insert</h4> <pre>public void insert(<a href="../../javax/swing/Action.html" title="interface in javax.swing">Action</a> a,
                   int index)</pre>
<div class="block">
            在给定位置插入指定的 
           <code>Action</code>对象的菜单项。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>a</code> - 要插入的 
            <code>Action</code>对象 
           </dd>
<dd>
<code>index</code> -指定了在要插入的位置 
            <code>Action</code> ，其中0是第一 
           </dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果 
            <code>index</code> &lt;0 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/Action.html" title="javax.swing中的接口"><code>Action</code></a></span>
</dd>
</dl> </li>
</ul> <a name="insert-java.awt.Component-int-">
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<ul class="blockList">
<li class="blockList"> <h4>insert</h4> <pre>public void insert(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> component,
                   int index)</pre>
<div class="block">
            将指定的组件插入到给定位置的菜单中。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>component</code> - 要插入的 
            <code>Component</code>
</dd>
<dd>
<code>index</code> - 指定插入组件的位置，其中0是第一个 
           </dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果 
            <code>index</code> &lt;0 
           </dd>
</dl> </li>
</ul> <a name="addPopupMenuListener-javax.swing.event.PopupMenuListener-">
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<ul class="blockList">
<li class="blockList"> <h4>addPopupMenuListener</h4> <pre>public void addPopupMenuListener(<a href="../../javax/swing/event/PopupMenuListener.html" title="interface in javax.swing.event">PopupMenuListener</a> l)</pre>
<div class="block">
            添加一个 
           <code>PopupMenu</code>监听器。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要添加的 
            <code>PopupMenuListener</code>
</dd>
</dl> </li>
</ul> <a name="removePopupMenuListener-javax.swing.event.PopupMenuListener-">
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<ul class="blockList">
<li class="blockList"> <h4>removePopupMenuListener</h4> <pre>public void removePopupMenuListener(<a href="../../javax/swing/event/PopupMenuListener.html" title="interface in javax.swing.event">PopupMenuListener</a> l)</pre>
<div class="block">
            删除一个 
           <code>PopupMenu</code>监听器。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要删除的 
            <code>PopupMenuListener</code>
</dd>
</dl> </li>
</ul> <a name="getPopupMenuListeners--">
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<ul class="blockList">
<li class="blockList"> <h4>getPopupMenuListeners</h4> <pre>public <a href="../../javax/swing/event/PopupMenuListener.html" title="interface in javax.swing.event">PopupMenuListener</a>[] getPopupMenuListeners()</pre>
<div class="block">
            返回使用addPopupMenuListener（）添加到此JMenuItem的所有 
           <code>PopupMenuListener</code>的数组。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             所有的 
            <code>PopupMenuListener</code>被添加或一个空的数组，如果没有听众被添加 
           </dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.4 
           </dd>
</dl> </li>
</ul> <a name="addMenuKeyListener-javax.swing.event.MenuKeyListener-">
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<ul class="blockList">
<li class="blockList"> <h4>addMenuKeyListener</h4> <pre>public void addMenuKeyListener(<a href="../../javax/swing/event/MenuKeyListener.html" title="interface in javax.swing.event">MenuKeyListener</a> l)</pre>
<div class="block">
            在弹出菜单中添加一个 
           <code>MenuKeyListener</code> 。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要加入的 
            <code>MenuKeyListener</code>
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.5 
           </dd>
</dl> </li>
</ul> <a name="removeMenuKeyListener-javax.swing.event.MenuKeyListener-">
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<ul class="blockList">
<li class="blockList"> <h4>removeMenuKeyListener</h4> <pre>public void removeMenuKeyListener(<a href="../../javax/swing/event/MenuKeyListener.html" title="interface in javax.swing.event">MenuKeyListener</a> l)</pre>
<div class="block">
            从弹出菜单中移除 
           <code>MenuKeyListener</code> 。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要删除的 
            <code>MenuKeyListener</code>
</dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.5 
           </dd>
</dl> </li>
</ul> <a name="getMenuKeyListeners--">
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<ul class="blockList">
<li class="blockList"> <h4>getMenuKeyListeners</h4> <pre>public <a href="../../javax/swing/event/MenuKeyListener.html" title="interface in javax.swing.event">MenuKeyListener</a>[] getMenuKeyListeners()</pre>
<div class="block">
            返回使用addMenuKeyListener（）添加到此JPopupMenu的所有 
           <code>MenuKeyListener</code>的数组。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             添加了所有 
            <code>MenuKeyListener</code>如果没有添加侦听器，则为空数组 
           </dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.5 
           </dd>
</dl> </li>
</ul> <a name="firePopupMenuWillBecomeVisible--">
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<ul class="blockList">
<li class="blockList"> <h4>firePopupMenuWillBecomeVisible</h4> <pre>protected void firePopupMenuWillBecomeVisible()</pre>
<div class="block">
            通知 
           <code>PopupMenuListener</code> s这个弹出菜单将变得可见。 
          </div> </li>
</ul> <a name="firePopupMenuWillBecomeInvisible--">
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<ul class="blockList">
<li class="blockList"> <h4>firePopupMenuWillBecomeInvisible</h4> <pre>protected void firePopupMenuWillBecomeInvisible()</pre>
<div class="block">
            通知 
           <code>PopupMenuListener</code> s这个弹出菜单将变得不可见。 
          </div> </li>
</ul> <a name="firePopupMenuCanceled--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>firePopupMenuCanceled</h4> <pre>protected void firePopupMenuCanceled()</pre>
<div class="block">
            通知 
           <code>PopupMenuListeners</code>该弹出菜单被取消。 
          </div> </li>
</ul> <a name="pack--">
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<ul class="blockList">
<li class="blockList"> <h4>pack</h4> <pre>public void pack()</pre>
<div class="block">
            放出容器，使其使用显示其内容所需的最小空间。 
          </div> </li>
</ul> <a name="setVisible-boolean-">
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<ul class="blockList">
<li class="blockList"> <h4>setVisible</h4> <pre>public void setVisible(boolean b)</pre>
<div class="block">
            设置弹出菜单的可见性。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#setVisible-boolean-">setVisible</a></code>在 
            <code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>b</code> - true使弹出窗口可见，或false隐藏它 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../java/awt/Component.html#isVisible--"><code>Component.isVisible()</code></a> ， 
            <a href="../../java/awt/Component.html#invalidate--"><code>Component.invalidate()</code></a>
</dd>
</dl> </li>
</ul> <a name="isVisible--">
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<ul class="blockList">
<li class="blockList"> <h4>isVisible</h4> <pre>public boolean isVisible()</pre>
<div class="block">
            如果弹出菜单可见（正在显示），则返回true。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../java/awt/Component.html#isVisible--">isVisible</a></code>在 
            <code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果组件可见， 
            <code>false</code> false 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../java/awt/Component.html#setVisible-boolean-"><code>Component.setVisible(boolean)</code></a>
</dd>
</dl> </li>
</ul> <a name="setLocation-int-int-">
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<ul class="blockList">
<li class="blockList"> <h4>setLocation</h4> <pre>public void setLocation(int x,
                        int y)</pre>
<div class="block">
<span>使用x，y坐标设置弹出菜单左上角的位置。</span>
<p> <span>该方法更改几何相关数据。</span> <span>因此，本地窗口系统可以忽略这样的请求，或者它可以修改所请求的数据，使得<code>JPopupMenu</code>对象被放置并且以与桌面设置紧密相对应的方式被调整大小。</span> </p>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../java/awt/Component.html#setLocation-int-int-">setLocation</a></code>在类 
            <code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>x</code> - 弹出窗口在坐标空间中的新位置的x坐标 
           </dd>
<dd>
<code>y</code> - 弹出窗口在坐标空间中的新位置的y坐标 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../java/awt/Component.html#getLocation--"><code>Component.getLocation()</code></a> ， 
            <a href="../../java/awt/Component.html#setBounds-int-int-int-int-"><code>Component.setBounds(int, int, int, int)</code></a> ， 
            <a href="../../java/awt/Component.html#invalidate--"><code>Component.invalidate()</code></a>
</dd>
</dl> </li>
</ul> <a name="getInvoker--">
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<ul class="blockList">
<li class="blockList"> <h4>getInvoker</h4> <pre>public <a href="../../java/awt/Component.html" title="class in java.awt">Component</a> getInvoker()</pre>
<div class="block">
            返回该弹出菜单的“调用者”组件。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             该 
            <code>Component</code>在其中显示弹出菜单 
           </dd>
</dl> </li>
</ul> <a name="setInvoker-java.awt.Component-">
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<ul class="blockList">
<li class="blockList"> <h4>setInvoker</h4> <pre>public void setInvoker(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> invoker)</pre>
<div class="block">
            设置此弹出菜单的调用者 - 要显示弹出菜单菜单的组件。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>invoker</code> -在 
            <code>Component</code>在其中显示弹出菜单 
           </dd>
</dl> </li>
</ul> <a name="show-java.awt.Component-int-int-">
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<ul class="blockList">
<li class="blockList"> <h4>show</h4> <pre>public void show(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> invoker,
                 int x,
                 int y)</pre>
<div class="block">
            在组件调用者的坐标空间中的位置x，y处显示弹出式菜单。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>invoker</code> - 弹出菜单要显示的空间中的组件 
           </dd>
<dd>
<code>x</code> - 要显示弹出菜单的调用者坐标空间中的x坐标 
           </dd>
<dd>
<code>y</code> - 要显示弹出菜单的调用者坐标空间中的y坐标 
           </dd>
</dl> </li>
</ul> <a name="getComponentAtIndex-int-">
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<ul class="blockList">
<li class="blockList"> <h4>getComponentAtIndex</h4> <pre><a href="../../java/lang/Deprecated.html" title="annotation in java.lang">@Deprecated</a>
public <a href="../../java/awt/Component.html" title="class in java.awt">Component</a> getComponentAtIndex(int i)</pre>
<div class="block">
<span><span class="deprecatedLabel">已弃用</span></span>
<span><span class="deprecationComment">取代<a href="../../java/awt/Container.html#getComponent-int-"><code>Container.getComponent(int)</code></a></span></span>
</div>
<div class="block">
            返回指定索引处的组件。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>i</code> - 
            <code>i</code>的索引，其中0是第一个 
           </dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             该指数为 
            <code>Component</code>
</dd>
</dl> </li>
</ul> <a name="getComponentIndex-java.awt.Component-">
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<ul class="blockList">
<li class="blockList"> <h4>getComponentIndex</h4> <pre>public int getComponentIndex(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> c)</pre>
<div class="block">
            返回指定组件的索引。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>c</code> - 找 
            <code>Component</code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<span>组件的索引，其中0是第一个;</span>
<span>如果未找到组件，则为-1</span>
</dd>
</dl> </li>
</ul> <a name="setPopupSize-java.awt.Dimension-">
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<ul class="blockList">
<li class="blockList"> <h4>setPopupSize</h4> <pre>public void setPopupSize(<a href="../../java/awt/Dimension.html" title="class in java.awt">Dimension</a> d)</pre>
<div class="block">
<span>使用<code>Dimension</code>对象设置弹出窗口的大小。</span>
<span>这相当于<code>setPreferredSize(d)</code> 。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>d</code> - 指定 
            <code>Dimension</code>组件的新大小的Dimension。 
           </dd>
</dl> </li>
</ul> <a name="setPopupSize-int-int-">
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<ul class="blockList">
<li class="blockList"> <h4>setPopupSize</h4> <pre>public void setPopupSize(int width,
                         int height)</pre>
<div class="block">
<span>将Popup窗口的大小设置为指定的宽度和高度。</span>
<span>这相当于<code>setPreferredSize(new Dimension(width, height))</code> 。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>width</code> - 弹出窗口的新宽度（以像素为单位） 
           </dd>
<dd>
<code>height</code> - 弹出窗口的新高度，以像素为单位 
           </dd>
</dl> </li>
</ul> <a name="setSelected-java.awt.Component-">
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<ul class="blockList">
<li class="blockList"> <h4>setSelected</h4> <pre>public void setSelected(<a href="../../java/awt/Component.html" title="class in java.awt">Component</a> sel)</pre>
<div class="block">
            设置当前选择的组件，这将导致选择模型的更改。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>sel</code> - 
            <code>Component</code>选择 
           </dd>
</dl> </li>
</ul> <a name="isBorderPainted--">
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<ul class="blockList">
<li class="blockList"> <h4>isBorderPainted</h4> <pre>public boolean isBorderPainted()</pre>
<div class="block">
            检查边框是否应该涂漆。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             如果边框被绘画，则为true，否则为false 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#setBorderPainted-boolean-"><code>setBorderPainted(boolean)</code></a>
</dd>
</dl> </li>
</ul> <a name="setBorderPainted-boolean-">
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<ul class="blockList">
<li class="blockList"> <h4>setBorderPainted</h4> <pre>public void setBorderPainted(boolean b)</pre>
<div class="block">
            设置是否应绘制边框。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>b</code> - 如果为true，则绘制边框。 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JPopupMenu.html#isBorderPainted--"><code>isBorderPainted()</code></a>
</dd>
</dl> </li>
</ul> <a name="paintBorder-java.awt.Graphics-">
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<ul class="blockList">
<li class="blockList"> <h4>paintBorder</h4> <pre>protected void paintBorder(<a href="../../java/awt/Graphics.html" title="class in java.awt">Graphics</a> g)</pre>
<div class="block">
            如果 
           <code>borderPainted</code>属性为 
           <code>true</code>则绘制弹出菜单的边框。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#paintBorder-java.awt.Graphics-">paintBorder</a></code>在 
            <code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>g</code> - 
            <code>Graphics</code>对象 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/JComponent.html#paint-java.awt.Graphics-"><code>JComponent.paint(java.awt.Graphics)</code></a> ， 
            <a href="../../javax/swing/JComponent.html#setBorder-javax.swing.border.Border-"><code>JComponent.setBorder(javax.swing.border.Border)</code></a>
</dd>
</dl> </li>
</ul> <a name="getMargin--">
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<ul class="blockList">
<li class="blockList"> <h4>getMargin</h4> <pre>public <a href="../../java/awt/Insets.html" title="class in java.awt">Insets</a> getMargin()</pre>
<div class="block">
            返回弹出菜单的边框和容器之间的边距（以像素为单位）。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             一个 
            <code>Insets</code>边距值的 
            <code>Insets</code>对象。 
           </dd>
</dl> </li>
</ul> <a name="paramString--">
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<ul class="blockList">
<li class="blockList"> <h4>paramString</h4> <pre>protected <a href="../../java/lang/String.html" title="class in java.lang">String</a> paramString()</pre>
<div class="block">
<span>返回此<code>JPopupMenu</code>的字符串表示<code>JPopupMenu</code> 。</span>
<span>该方法仅用于调试目的，并且返回的字符串的内容和格式可能因实现而异。</span>
<span>返回的字符串可能为空，但可能不是<code>null</code> 。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../javax/swing/JComponent.html#paramString--">paramString</a></code>在 
            <code><a href="../../javax/swing/JComponent.html" title="class in javax.swing">JComponent</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             这个 
            <code>JPopupMenu</code>的字符串表示 
            <code>JPopupMenu</code> 。 
           </dd>
</dl> </li>
</ul> <a name="getAccessibleContext--">
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<ul class="blockList">
<li class="blockList"> <h4>getAccessibleContext</h4> <pre>public <a href="../../javax/accessibility/AccessibleContext.html" title="class in javax.accessibility">AccessibleContext</a> getAccessibleContext()</pre>
<div class="block">
<span>获取与此JPopupMenu关联的AccessibleContext。</span>
<span>对于JPopupMenus，AccessibleContext采用AccessibleJPopupMenu的形式。</span>
<span>如有必要，将创建一个新的AccessibleJPopupMenu实例。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/accessibility/Accessible.html#getAccessibleContext--">getAccessibleContext</a></code>在界面 
            <code><a href="../../javax/accessibility/Accessible.html" title="interface in javax.accessibility">Accessible</a></code>
</dd>
<dt>
<span class="overrideSpecifyLabel">重写：</span>
</dt>
<dd>
<code><a href="../../java/awt/Component.html#getAccessibleContext--">getAccessibleContext</a></code>在 
            <code><a href="../../java/awt/Component.html" title="class in java.awt">Component</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             一个AccessibleJPopupMenu作为这个JPopupMenu的AccessibleContext 
           </dd>
</dl> </li>
</ul> <a name="processMouseEvent-java.awt.event.MouseEvent-javax.swing.MenuElement:A-javax.swing.MenuSelectionManager-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>processMouseEvent</h4> <pre>public void processMouseEvent(<a href="../../java/awt/event/MouseEvent.html" title="class in java.awt.event">MouseEvent</a> event,
                              <a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a>[] path,
                              <a href="../../javax/swing/MenuSelectionManager.html" title="class in javax.swing">MenuSelectionManager</a> manager)</pre>
<div class="block">
            这种方法是符合 
           <code>MenuElement</code>接口所必需的，但没有实现。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/MenuElement.html#processMouseEvent-java.awt.event.MouseEvent-javax.swing.MenuElement:A-javax.swing.MenuSelectionManager-">processMouseEvent</a></code>在接口 
            <code><a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a></code>
</dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/MenuElement.html#processMouseEvent-java.awt.event.MouseEvent-javax.swing.MenuElement:A-javax.swing.MenuSelectionManager-"><code>MenuElement.processMouseEvent(MouseEvent, MenuElement[], MenuSelectionManager)</code></a>
</dd>
</dl> </li>
</ul> <a name="processKeyEvent-java.awt.event.KeyEvent-javax.swing.MenuElement:A-javax.swing.MenuSelectionManager-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>processKeyEvent</h4> <pre>public void processKeyEvent(<a href="../../java/awt/event/KeyEvent.html" title="class in java.awt.event">KeyEvent</a> e,
                            <a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a>[] path,
                            <a href="../../javax/swing/MenuSelectionManager.html" title="class in javax.swing">MenuSelectionManager</a> manager)</pre>
<div class="block">
<span>处理从MenuSelectionManager转发的密钥事件，并根据<code>MenuSelectionManager</code>更改菜单选项，方法是使用<code>MenuSelectionManager</code>的API。</span>
<p> <span>注意：您不必将事件转发到子组件。</span> <span>这是由<code>MenuSelectionManager</code> 。</span> </p>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/MenuElement.html#processKeyEvent-java.awt.event.KeyEvent-javax.swing.MenuElement:A-javax.swing.MenuSelectionManager-">processKeyEvent</a></code>在接口 
            <code><a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>e</code> - a 
            <code>KeyEvent</code>
</dd>
<dd>
<code>path</code> - 
            <code>MenuElement</code>路径数组 
           </dd>
<dd>
<code>manager</code> - 
            <code>MenuSelectionManager</code>
</dd>
</dl> </li>
</ul> <a name="menuSelectionChanged-boolean-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>menuSelectionChanged</h4> <pre>public void menuSelectionChanged(boolean isIncluded)</pre>
<div class="block">
<span>当菜单选择更改以激活或停用此菜单时发生消息。</span>
<span>这实现了<code>javax.swing.MenuElement</code>接口。</span>
<span>覆盖<code>MenuElement.menuSelectionChanged</code> 。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/MenuElement.html#menuSelectionChanged-boolean-">menuSelectionChanged</a></code>在界面 
            <code><a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>isIncluded</code> - 如果此菜单处于活动状态，则为true，否则为false 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/MenuElement.html#menuSelectionChanged-boolean-"><code>MenuElement.menuSelectionChanged(boolean)</code></a>
</dd>
</dl> </li>
</ul> <a name="getSubElements--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getSubElements</h4> <pre>public <a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a>[] getSubElements()</pre>
<div class="block">
<span>返回的数组<code>MenuElement</code>包含此菜单组件的子菜单秒。</span>
<span>它将只返回符合<code>JMenuElement</code>接口的条目。</span>
<span>如果弹出菜单是<code>null</code>返回一个空数组。</span>
<span>该方法需要符合<code>MenuElement</code>接口。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/MenuElement.html#getSubElements--">getSubElements</a></code>在接口 
            <code><a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             一组 
            <code>MenuElement</code>对象 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/MenuElement.html#getSubElements--"><code>MenuElement.getSubElements()</code></a>
</dd>
</dl> </li>
</ul> <a name="getComponent--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getComponent</h4> <pre>public <a href="../../java/awt/Component.html" title="class in java.awt">Component</a> getComponent()</pre>
<div class="block">
            返回此 
           <code>JPopupMenu</code>组件。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/MenuElement.html#getComponent--">getComponent</a></code>在界面 
            <code><a href="../../javax/swing/MenuElement.html" title="interface in javax.swing">MenuElement</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             这个 
            <code>JPopupMenu</code>对象 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/MenuElement.html#getComponent--"><code>MenuElement.getComponent()</code></a>
</dd>
</dl> </li>
</ul> <a name="isPopupTrigger-java.awt.event.MouseEvent-">
<!-- --> </a>
<ul class="blockListLast">
<li class="blockList"> <h4>isPopupTrigger</h4> <pre>public boolean isPopupTrigger(<a href="../../java/awt/event/MouseEvent.html" title="class in java.awt.event">MouseEvent</a> e)</pre>
<div class="block">
            如果 
           <code>MouseEvent</code>被JPopupMenu当前安装的UI 
           <code>JPopupMenu</code>弹出式触发器，则返回true。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             如果鼠标事件是弹出式触发器，则为true 
           </dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.3 
           </dd>
</dl> </li>
</ul> </li>
</ul> </li>
</ul>
</div>
</div>