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

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     javax.swing 
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<h2 class="title" title="Class DefaultButtonModel">Class DefaultButtonModel</h2>
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<li><a href="../../java/lang/Object.html" title="class in java.lang">java.lang.Object</a></li>
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<li>javax.swing.DefaultButtonModel</li>
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         All Implemented Interfaces: 
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<span><a href="../../java/awt/ItemSelectable.html" title="java.awt中的接口">ItemSelectable</a> ， <a href="../../java/io/Serializable.html" title="java.io中的接口">Serializable</a> ， <a href="../../javax/swing/ButtonModel.html" title="javax.swing中的接口">ButtonModel</a></span>
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<dt>
        已知直接子类：
       </dt>
<dd>
<span><a href="../../javax/swing/JToggleButton.ToggleButtonModel.html" title="javax.swing中的类">JToggleButton.ToggleButtonModel</a></span>
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<hr/> <br/> <pre>public class <span class="typeNameLabel">DefaultButtonModel</span>
extends <a href="../../java/lang/Object.html" title="class in java.lang">Object</a>
implements <a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a>, <a href="../../java/io/Serializable.html" title="interface in java.io">Serializable</a></pre>
<div class="block">
<span><code>Button</code>组件的数据模型的默认实现。</span>
<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版本开始，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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<!-- =========== FIELD SUMMARY =========== -->
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<caption>
<span>Fields</span>
<span class="tabEnd"> </span>
</caption>
<tbody>
<tr>
<th class="colFirst" scope="col">Modifier and Type</th>
<th class="colLast" scope="col">Field and Description</th>
</tr>
<tr class="altColor">
<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/DefaultButtonModel.html#actionCommand">actionCommand</a></span></code>
<div class="block">
              按钮触发的动作命令字符串。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#ARMED">ARMED</a></span></code>
<div class="block">
              标识位掩码中的“布防”位，这表示部分承诺选择/触发按钮。 
            </div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../javax/swing/event/ChangeEvent.html" title="class in javax.swing.event">ChangeEvent</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#changeEvent">changeEvent</a></span></code>
<div class="block">
              每个按钮模型实例只需要一个 
             <code>ChangeEvent</code> ，因为事件的唯一状态是源属性。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#ENABLED">ENABLED</a></span></code>
<div class="block">
              标识位掩码中的“已启用”位，表示该按钮可由输入设备（如鼠标指针）选择。 
            </div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected <a href="../../javax/swing/ButtonGroup.html" title="class in javax.swing">ButtonGroup</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#group">group</a></span></code>
<div class="block">
              按钮所属的按钮组。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>protected <a href="../../javax/swing/event/EventListenerList.html" title="class in javax.swing.event">EventListenerList</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#listenerList">listenerList</a></span></code>
<div class="block">
              在这个模型上存储听众。 
            </div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#mnemonic">mnemonic</a></span></code>
<div class="block">
              按钮的助记符 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#PRESSED">PRESSED</a></span></code>
<div class="block">
              标识位掩码中的“已按”位，表示该按钮被按下。 
            </div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#ROLLOVER">ROLLOVER</a></span></code>
<div class="block">
              标识位掩码中的“翻转”位，表示鼠标在按钮上方。 
            </div> </td>
</tr>
<tr class="rowColor">
<td class="colFirst"><code>static int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#SELECTED">SELECTED</a></span></code>
<div class="block">
              标识位掩码中的“选定”位，表示该按钮已被选中。 
            </div> </td>
</tr>
<tr class="altColor">
<td class="colFirst"><code>protected int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#stateMask">stateMask</a></span></code>
<div class="block">
              该位掩码用于存储按钮的状态。 
            </div> </td>
</tr>
</tbody>
</table> </li>
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<span>构造方法</span>
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<tbody>
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<th class="colOne" scope="col">Constructor and Description</th>
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#DefaultButtonModel--">DefaultButtonModel</a></span>()</code>
<div class="block">
              构造一个 
             <code>DefaultButtonModel</code> 。 
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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="t2"><span><a href="javascript:show(2);">接口方法</a></span><span class="tabEnd"> </span></span>
<span class="tableTab" id="t4"><span><a href="javascript:show(8);">具体的方法</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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<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#addActionListener-java.awt.event.ActionListener-">addActionListener</a></span>(<a href="../../java/awt/event/ActionListener.html" title="interface in java.awt.event">ActionListener</a> l)</code>
<div class="block">
              添加一个 
             <code>ActionListener</code>模型。 
            </div> </td>
</tr>
<tr class="rowColor" id="i1">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#addChangeListener-javax.swing.event.ChangeListener-">addChangeListener</a></span>(<a href="../../javax/swing/event/ChangeListener.html" title="interface in javax.swing.event">ChangeListener</a> l)</code>
<div class="block">
              在模型中添加一个 
             <code>ChangeListener</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i2">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#addItemListener-java.awt.event.ItemListener-">addItemListener</a></span>(<a href="../../java/awt/event/ItemListener.html" title="interface in java.awt.event">ItemListener</a> l)</code>
<div class="block">
              添加一个 
             <code>ItemListener</code>模型。 
            </div> </td>
</tr>
<tr class="rowColor" id="i3">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#fireActionPerformed-java.awt.event.ActionEvent-">fireActionPerformed</a></span>(<a href="../../java/awt/event/ActionEvent.html" title="class in java.awt.event">ActionEvent</a> e)</code>
<div class="block">
              通知所有在此事件类型上通知有兴趣的听众。 
            </div> </td>
</tr>
<tr class="altColor" id="i4">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#fireItemStateChanged-java.awt.event.ItemEvent-">fireItemStateChanged</a></span>(<a href="../../java/awt/event/ItemEvent.html" title="class in java.awt.event">ItemEvent</a> e)</code>
<div class="block">
              通知所有在此事件类型上通知有兴趣的听众。 
            </div> </td>
</tr>
<tr class="rowColor" id="i5">
<td class="colFirst"><code>protected void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#fireStateChanged--">fireStateChanged</a></span>()</code>
<div class="block">
              通知所有在此事件类型上通知有兴趣的听众。 
            </div> </td>
</tr>
<tr class="altColor" id="i6">
<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/DefaultButtonModel.html#getActionCommand--">getActionCommand</a></span>()</code>
<div class="block">
              返回按钮的动作命令字符串。 
            </div> </td>
</tr>
<tr class="rowColor" id="i7">
<td class="colFirst"><code><a href="../../java/awt/event/ActionListener.html" title="interface in java.awt.event">ActionListener</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#getActionListeners--">getActionListeners</a></span>()</code>
<div class="block">
              返回在此 
             <code>DefaultButtonModel</code>上 
             <code>DefaultButtonModel</code>的所有动作侦听器的 
             <code>DefaultButtonModel</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i8">
<td class="colFirst"><code><a href="../../javax/swing/event/ChangeListener.html" title="interface in javax.swing.event">ChangeListener</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#getChangeListeners--">getChangeListeners</a></span>()</code>
<div class="block">
              返回在此 
             <code>DefaultButtonModel</code>上 
             <code>DefaultButtonModel</code>的所有更改监听器的 
             <code>DefaultButtonModel</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i9">
<td class="colFirst"><code><a href="../../javax/swing/ButtonGroup.html" title="class in javax.swing">ButtonGroup</a></code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#getGroup--">getGroup</a></span>()</code>
<div class="block">
              返回按钮所属的组。 
            </div> </td>
</tr>
<tr class="altColor" id="i10">
<td class="colFirst"><code><a href="../../java/awt/event/ItemListener.html" title="interface in java.awt.event">ItemListener</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#getItemListeners--">getItemListeners</a></span>()</code>
<div class="block">
              返回在此 
             <code>DefaultButtonModel</code>上 
             <code>DefaultButtonModel</code>的所有项目侦听器的 
             <code>DefaultButtonModel</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i11">
<td class="colFirst"><code>&lt;T extends <a href="../../java/util/EventListener.html" title="interface in java.util">EventListener</a>&gt;<br/>T[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#getListeners-java.lang.Class-">getListeners</a></span>(<a href="../../java/lang/Class.html" title="class in java.lang">类</a>&lt;T&gt; listenerType)</code>
<div class="block">
              返回此模型上当前注册为 
             <code><em>Foo</em>Listener</code>的所有对象的数组。 
            </div> </td>
</tr>
<tr class="altColor" id="i12">
<td class="colFirst"><code>int</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#getMnemonic--">getMnemonic</a></span>()</code>
<div class="block">
              获取按钮的键盘助记符。 
            </div> </td>
</tr>
<tr class="rowColor" id="i13">
<td class="colFirst"><code><a href="../../java/lang/Object.html" title="class in java.lang">Object</a>[]</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#getSelectedObjects--">getSelectedObjects</a></span>()</code>
<div class="block">
              被覆盖返回 
             <code>null</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i14">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#isArmed--">isArmed</a></span>()</code>
<div class="block">
              表示部分承诺触发按钮。 
            </div> </td>
</tr>
<tr class="rowColor" id="i15">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#isEnabled--">isEnabled</a></span>()</code>
<div class="block">
              指示按钮是否可以由输入设备（如鼠标指针）选择或触发。 
            </div> </td>
</tr>
<tr class="altColor" id="i16">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#isPressed--">isPressed</a></span>()</code>
<div class="block">
              指示按下按钮。 
            </div> </td>
</tr>
<tr class="rowColor" id="i17">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#isRollover--">isRollover</a></span>()</code>
<div class="block">
              表示鼠标在按钮上方。 
            </div> </td>
</tr>
<tr class="altColor" id="i18">
<td class="colFirst"><code>boolean</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#isSelected--">isSelected</a></span>()</code>
<div class="block">
              指示按钮是否已被选中。 
            </div> </td>
</tr>
<tr class="rowColor" id="i19">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#removeActionListener-java.awt.event.ActionListener-">removeActionListener</a></span>(<a href="../../java/awt/event/ActionListener.html" title="interface in java.awt.event">ActionListener</a> l)</code>
<div class="block">
              从模型中移除 
             <code>ActionListener</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i20">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#removeChangeListener-javax.swing.event.ChangeListener-">removeChangeListener</a></span>(<a href="../../javax/swing/event/ChangeListener.html" title="interface in javax.swing.event">ChangeListener</a> l)</code>
<div class="block">
              从模型中移除 
             <code>ChangeListener</code> 。 
            </div> </td>
</tr>
<tr class="rowColor" id="i21">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#removeItemListener-java.awt.event.ItemListener-">removeItemListener</a></span>(<a href="../../java/awt/event/ItemListener.html" title="interface in java.awt.event">ItemListener</a> l)</code>
<div class="block">
              从模型中删除 
             <code>ItemListener</code> 。 
            </div> </td>
</tr>
<tr class="altColor" id="i22">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#setActionCommand-java.lang.String-">setActionCommand</a></span>(<a href="../../java/lang/String.html" title="class in java.lang">String</a> actionCommand)</code>
<div class="block">
              设置当 
             <code>ActionEvent</code>按钮时作为 
             <code>ActionEvent</code>一部分发送的动作命令字符串。 
            </div> </td>
</tr>
<tr class="rowColor" id="i23">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#setArmed-boolean-">setArmed</a></span>(boolean b)</code>
<div class="block">
              将按钮标记为武装或非武装。 
            </div> </td>
</tr>
<tr class="altColor" id="i24">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#setEnabled-boolean-">setEnabled</a></span>(boolean b)</code>
<div class="block">
              启用或禁用按钮。 
            </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/DefaultButtonModel.html#setGroup-javax.swing.ButtonGroup-">setGroup</a></span>(<a href="../../javax/swing/ButtonGroup.html" title="class in javax.swing">ButtonGroup</a> group)</code>
<div class="block">
              标识按钮所属的组 - 单选按钮所需的组，它们在组内是相互排斥的。 
            </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/DefaultButtonModel.html#setMnemonic-int-">setMnemonic</a></span>(int key)</code>
<div class="block">
              设置按钮的键盘助记符（快捷键或加速键）。 
            </div> </td>
</tr>
<tr class="rowColor" id="i27">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#setPressed-boolean-">setPressed</a></span>(boolean b)</code>
<div class="block">
              将按钮设置为按下或未按下。 
            </div> </td>
</tr>
<tr class="altColor" id="i28">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#setRollover-boolean-">setRollover</a></span>(boolean b)</code>
<div class="block">
              设置或清除按钮的翻转状态 
            </div> </td>
</tr>
<tr class="rowColor" id="i29">
<td class="colFirst"><code>void</code></td>
<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/DefaultButtonModel.html#setSelected-boolean-">setSelected</a></span>(boolean b)</code>
<div class="block">
              选择或取消选择按钮。 
            </div> </td>
</tr>
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<li class="blockList"> <h4>stateMask</h4> <pre>protected int stateMask</pre>
<div class="block">
            该位掩码用于存储按钮的状态。 
          </div> </li>
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<li class="blockList"> <h4>actionCommand</h4> <pre>protected <a href="../../java/lang/String.html" title="class in java.lang">String</a> actionCommand</pre>
<div class="block">
            按钮触发的动作命令字符串。 
          </div> </li>
</ul> <a name="group">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>group</h4> <pre>protected <a href="../../javax/swing/ButtonGroup.html" title="class in javax.swing">ButtonGroup</a> group</pre>
<div class="block">
            按钮所属的按钮组。 
          </div> </li>
</ul> <a name="mnemonic">
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<ul class="blockList">
<li class="blockList"> <h4>mnemonic</h4> <pre>protected int mnemonic</pre>
<div class="block">
            按钮的助记符 
          </div> </li>
</ul> <a name="changeEvent">
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<ul class="blockList">
<li class="blockList"> <h4>changeEvent</h4> <pre>protected transient <a href="../../javax/swing/event/ChangeEvent.html" title="class in javax.swing.event">ChangeEvent</a> changeEvent</pre>
<div class="block">
<span>每个按钮模型实例只需要一个<code>ChangeEvent</code> ，因为事件的唯一状态是源属性。</span>
<span>生成的事件的来源总是“这”。</span>
</div> </li>
</ul> <a name="listenerList">
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<ul class="blockList">
<li class="blockList"> <h4>listenerList</h4> <pre>protected <a href="../../javax/swing/event/EventListenerList.html" title="class in javax.swing.event">EventListenerList</a> listenerList</pre>
<div class="block">
            在这个模型上存储听众。 
          </div> </li>
</ul> <a name="ARMED">
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<ul class="blockList">
<li class="blockList"> <h4>ARMED</h4> <pre>public static final int ARMED</pre>
<div class="block">
            标识位掩码中的“布防”位，这表示部分承诺选择/触发按钮。 
          </div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.DefaultButtonModel.ARMED">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="SELECTED">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>SELECTED</h4> <pre>public static final int SELECTED</pre>
<div class="block">
<span>标识位掩码中的“选定”位，表示该按钮已被选中。</span>
<span>只需要某些类型的按钮 - 如单选按钮或复选框。</span>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.DefaultButtonModel.SELECTED">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="PRESSED">
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<ul class="blockList">
<li class="blockList"> <h4>PRESSED</h4> <pre>public static final int PRESSED</pre>
<div class="block">
            标识位掩码中的“已按”位，表示该按钮被按下。 
          </div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.DefaultButtonModel.PRESSED">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="ENABLED">
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<ul class="blockList">
<li class="blockList"> <h4>ENABLED</h4> <pre>public static final int ENABLED</pre>
<div class="block">
            标识位掩码中的“已启用”位，表示该按钮可由输入设备（如鼠标指针）选择。 
          </div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.DefaultButtonModel.ENABLED">Constant Field Values</a>
</dd>
</dl> </li>
</ul> <a name="ROLLOVER">
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<ul class="blockListLast">
<li class="blockList"> <h4>ROLLOVER</h4> <pre>public static final int ROLLOVER</pre>
<div class="block">
            标识位掩码中的“翻转”位，表示鼠标在按钮上方。 
          </div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../constant-values.html#javax.swing.DefaultButtonModel.ROLLOVER">Constant Field Values</a>
</dd>
</dl> </li>
</ul> </li>
</ul>
<!-- ========= CONSTRUCTOR DETAIL ======== -->
<ul class="blockList">
<li class="blockList"><a name="constructor.detail">
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<ul class="blockListLast">
<li class="blockList"> <h4>DefaultButtonModel</h4> <pre>public DefaultButtonModel()</pre>
<div class="block">
            构造一个 
           <code>DefaultButtonModel</code> 。 
          </div> </li>
</ul> </li>
</ul>
<!-- ============ METHOD DETAIL ========== -->
<ul class="blockList">
<li class="blockList"><a name="method.detail">
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<ul class="blockList">
<li class="blockList"> <h4>setActionCommand</h4> <pre>public void setActionCommand(<a href="../../java/lang/String.html" title="class in java.lang">String</a> actionCommand)</pre>
<div class="block">
            设置当 
           <code>ActionEvent</code>按钮时作为 
           <code>ActionEvent</code>一部分发送的动作命令字符串。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setActionCommand-java.lang.String-">setActionCommand</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>actionCommand</code> - 
            <code>String</code>生成的事件的String 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/ButtonModel.html#getActionCommand--"><code>ButtonModel.getActionCommand()</code></a> ， 
            <a href="../../java/awt/event/ActionEvent.html#getActionCommand--"><code>ActionEvent.getActionCommand()</code></a>
</dd>
</dl> </li>
</ul> <a name="getActionCommand--">
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<ul class="blockList">
<li class="blockList"> <h4>getActionCommand</h4> <pre>public <a href="../../java/lang/String.html" title="class in java.lang">String</a> getActionCommand()</pre>
<div class="block">
            返回按钮的动作命令字符串。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#getActionCommand--">getActionCommand</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>String</code>生成的事件的String 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/ButtonModel.html#setActionCommand-java.lang.String-"><code>ButtonModel.setActionCommand(java.lang.String)</code></a>
</dd>
</dl> </li>
</ul> <a name="isArmed--">
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<ul class="blockList">
<li class="blockList"> <h4>isArmed</h4> <pre>public boolean isArmed()</pre>
<div class="block">
            表示部分承诺触发按钮。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#isArmed--">isArmed</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果按钮被布防，并准备被触发 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/ButtonModel.html#setArmed-boolean-"><code>ButtonModel.setArmed(boolean)</code></a>
</dd>
</dl> </li>
</ul> <a name="isSelected--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>isSelected</h4> <pre>public boolean isSelected()</pre>
<div class="block">
<span>指示按钮是否已被选中。</span>
<span>只需要某些类型的按钮，如单选按钮和复选框。</span>
</div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#isSelected--">isSelected</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果选择按钮 
           </dd>
</dl> </li>
</ul> <a name="isEnabled--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>isEnabled</h4> <pre>public boolean isEnabled()</pre>
<div class="block">
            指示按钮是否可以由输入设备（如鼠标指针）选择或触发。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#isEnabled--">isEnabled</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果按钮被启用 
           </dd>
</dl> </li>
</ul> <a name="isPressed--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>isPressed</h4> <pre>public boolean isPressed()</pre>
<div class="block">
            指示按下按钮。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#isPressed--">isPressed</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果按下按钮 
           </dd>
</dl> </li>
</ul> <a name="isRollover--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>isRollover</h4> <pre>public boolean isRollover()</pre>
<div class="block">
            表示鼠标在按钮上方。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#isRollover--">isRollover</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
<code>true</code>如果鼠标在按钮上方 
           </dd>
</dl> </li>
</ul> <a name="setArmed-boolean-">
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<ul class="blockList">
<li class="blockList"> <h4>setArmed</h4> <pre>public void setArmed(boolean b)</pre>
<div class="block">
            将按钮标记为武装或非武装。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setArmed-boolean-">setArmed</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>b</code> - 是否应该按下按钮 
           </dd>
</dl> </li>
</ul> <a name="setEnabled-boolean-">
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<ul class="blockList">
<li class="blockList"> <h4>setEnabled</h4> <pre>public void setEnabled(boolean b)</pre>
<div class="block">
            启用或禁用按钮。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setEnabled-boolean-">setEnabled</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>b</code> - 是否应启用按钮 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/ButtonModel.html#isEnabled--"><code>ButtonModel.isEnabled()</code></a>
</dd>
</dl> </li>
</ul> <a name="setSelected-boolean-">
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<ul class="blockList">
<li class="blockList"> <h4>setSelected</h4> <pre>public void setSelected(boolean b)</pre>
<div class="block">
            选择或取消选择按钮。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setSelected-boolean-">setSelected</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>b</code> - 
            <code>true</code>选择按钮， 
            <code>false</code>取消选择按钮 
           </dd>
</dl> </li>
</ul> <a name="setPressed-boolean-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setPressed</h4> <pre>public void setPressed(boolean b)</pre>
<div class="block">
            将按钮设置为按下或未按下。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setPressed-boolean-">setPressed</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>b</code> - 是否应按下按钮 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/ButtonModel.html#isPressed--"><code>ButtonModel.isPressed()</code></a>
</dd>
</dl> </li>
</ul> <a name="setRollover-boolean-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setRollover</h4> <pre>public void setRollover(boolean b)</pre>
<div class="block">
            设置或清除按钮的翻转状态 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setRollover-boolean-">setRollover</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>b</code> - 按钮是否处于翻转状态 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/ButtonModel.html#isRollover--"><code>ButtonModel.isRollover()</code></a>
</dd>
</dl> </li>
</ul> <a name="setMnemonic-int-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>setMnemonic</h4> <pre>public void setMnemonic(int key)</pre>
<div class="block">
            设置按钮的键盘助记符（快捷键或加速键）。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setMnemonic-int-">setMnemonic</a></code>在接口 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>key</code> - 一个指定加速键的int 
           </dd>
</dl> </li>
</ul> <a name="getMnemonic--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getMnemonic</h4> <pre>public int getMnemonic()</pre>
<div class="block">
            获取按钮的键盘助记符。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#getMnemonic--">getMnemonic</a></code>中的 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             指定加速键的int 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/ButtonModel.html#setMnemonic-int-"><code>ButtonModel.setMnemonic(int)</code></a>
</dd>
</dl> </li>
</ul> <a name="addChangeListener-javax.swing.event.ChangeListener-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>addChangeListener</h4> <pre>public void addChangeListener(<a href="../../javax/swing/event/ChangeListener.html" title="interface in javax.swing.event">ChangeListener</a> l)</pre>
<div class="block">
            在模型中添加一个 
           <code>ChangeListener</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#addChangeListener-javax.swing.event.ChangeListener-">addChangeListener</a></code>中的 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 收听者添加 
           </dd>
</dl> </li>
</ul> <a name="removeChangeListener-javax.swing.event.ChangeListener-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>removeChangeListener</h4> <pre>public void removeChangeListener(<a href="../../javax/swing/event/ChangeListener.html" title="interface in javax.swing.event">ChangeListener</a> l)</pre>
<div class="block">
            从模型中移除 
           <code>ChangeListener</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#removeChangeListener-javax.swing.event.ChangeListener-">removeChangeListener</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要删除的侦听器 
           </dd>
</dl> </li>
</ul> <a name="getChangeListeners--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getChangeListeners</h4> <pre>public <a href="../../javax/swing/event/ChangeListener.html" title="interface in javax.swing.event">ChangeListener</a>[] getChangeListeners()</pre>
<div class="block">
            返回在此 
           <code>DefaultButtonModel</code>上 
           <code>DefaultButtonModel</code>的所有更改侦听器的 
           <code>DefaultButtonModel</code> 。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             所有这个模型的 
            <code>ChangeListener</code> s或一个空数组，如果没有更改监听器当前注册 
           </dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.4 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/DefaultButtonModel.html#addChangeListener-javax.swing.event.ChangeListener-"><code>addChangeListener(javax.swing.event.ChangeListener)</code></a> ， 
            <a href="../../javax/swing/DefaultButtonModel.html#removeChangeListener-javax.swing.event.ChangeListener-"><code>removeChangeListener(javax.swing.event.ChangeListener)</code></a>
</dd>
</dl> </li>
</ul> <a name="fireStateChanged--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>fireStateChanged</h4> <pre>protected void fireStateChanged()</pre>
<div class="block">
<span>通知所有在此事件类型上通知有兴趣的听众。</span>
<span>事件实例是懒惰地创建的。</span>
</div>
<dl>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/event/EventListenerList.html" title="javax.swing.event中的类"><code>EventListenerList</code></a></span>
</dd>
</dl> </li>
</ul> <a name="addActionListener-java.awt.event.ActionListener-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>addActionListener</h4> <pre>public void addActionListener(<a href="../../java/awt/event/ActionListener.html" title="interface in java.awt.event">ActionListener</a> l)</pre>
<div class="block">
            在模型中添加一个 
           <code>ActionListener</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#addActionListener-java.awt.event.ActionListener-">addActionListener</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要添加的监听器 
           </dd>
</dl> </li>
</ul> <a name="removeActionListener-java.awt.event.ActionListener-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>removeActionListener</h4> <pre>public void removeActionListener(<a href="../../java/awt/event/ActionListener.html" title="interface in java.awt.event">ActionListener</a> l)</pre>
<div class="block">
            从模型中移除 
           <code>ActionListener</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#removeActionListener-java.awt.event.ActionListener-">removeActionListener</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要删除的侦听器 
           </dd>
</dl> </li>
</ul> <a name="getActionListeners--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getActionListeners</h4> <pre>public <a href="../../java/awt/event/ActionListener.html" title="interface in java.awt.event">ActionListener</a>[] getActionListeners()</pre>
<div class="block">
            返回在此 
           <code>DefaultButtonModel</code>上 
           <code>DefaultButtonModel</code>的所有动作侦听器的 
           <code>DefaultButtonModel</code> 。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             所有这个模型的 
            <code>ActionListener</code> s或一个空数组，如果没有动作侦听器当前注册 
           </dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.4 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/DefaultButtonModel.html#addActionListener-java.awt.event.ActionListener-"><code>addActionListener(java.awt.event.ActionListener)</code></a> ， 
            <a href="../../javax/swing/DefaultButtonModel.html#removeActionListener-java.awt.event.ActionListener-"><code>removeActionListener(java.awt.event.ActionListener)</code></a>
</dd>
</dl> </li>
</ul> <a name="fireActionPerformed-java.awt.event.ActionEvent-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>fireActionPerformed</h4> <pre>protected void fireActionPerformed(<a href="../../java/awt/event/ActionEvent.html" title="class in java.awt.event">ActionEvent</a> e)</pre>
<div class="block">
            通知所有在此事件类型上通知有兴趣的听众。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>e</code> -在 
            <code>ActionEvent</code>交付给听众 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/event/EventListenerList.html" title="javax.swing.event中的类"><code>EventListenerList</code></a></span>
</dd>
</dl> </li>
</ul> <a name="addItemListener-java.awt.event.ItemListener-">
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<ul class="blockList">
<li class="blockList"> <h4>addItemListener</h4> <pre>public void addItemListener(<a href="../../java/awt/event/ItemListener.html" title="interface in java.awt.event">ItemListener</a> l)</pre>
<div class="block">
            在模型中添加一个 
           <code>ItemListener</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../java/awt/ItemSelectable.html#addItemListener-java.awt.event.ItemListener-">addItemListener</a></code>在界面 
            <code><a href="../../java/awt/ItemSelectable.html" title="interface in java.awt">ItemSelectable</a></code>
</dd>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#addItemListener-java.awt.event.ItemListener-">addItemListener</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要添加的收听者 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../java/awt/event/ItemEvent.html" title="java.awt.event中的类"><code>ItemEvent</code></a></span>
</dd>
</dl> </li>
</ul> <a name="removeItemListener-java.awt.event.ItemListener-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>removeItemListener</h4> <pre>public void removeItemListener(<a href="../../java/awt/event/ItemListener.html" title="interface in java.awt.event">ItemListener</a> l)</pre>
<div class="block">
            从模型中删除 
           <code>ItemListener</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../java/awt/ItemSelectable.html#removeItemListener-java.awt.event.ItemListener-">removeItemListener</a></code>在界面 
            <code><a href="../../java/awt/ItemSelectable.html" title="interface in java.awt">ItemSelectable</a></code>
</dd>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#removeItemListener-java.awt.event.ItemListener-">removeItemListener</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>l</code> - 要删除的侦听器 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../java/awt/event/ItemEvent.html" title="java.awt.event中的类"><code>ItemEvent</code></a></span>
</dd>
</dl> </li>
</ul> <a name="getItemListeners--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getItemListeners</h4> <pre>public <a href="../../java/awt/event/ItemListener.html" title="interface in java.awt.event">ItemListener</a>[] getItemListeners()</pre>
<div class="block">
            返回在此 
           <code>DefaultButtonModel</code>上 
           <code>DefaultButtonModel</code>的所有项目侦听器的 
           <code>DefaultButtonModel</code> 。 
          </div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             所有这个模型的 
            <code>ItemListener</code> s或一个空数组，如果没有项目监听器当前注册 
           </dd>
<dt>
<span class="simpleTagLabel">从以下版本开始：</span>
</dt>
<dd>
             1.4 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<a href="../../javax/swing/DefaultButtonModel.html#addItemListener-java.awt.event.ItemListener-"><code>addItemListener(java.awt.event.ItemListener)</code></a> ， 
            <a href="../../javax/swing/DefaultButtonModel.html#removeItemListener-java.awt.event.ItemListener-"><code>removeItemListener(java.awt.event.ItemListener)</code></a>
</dd>
</dl> </li>
</ul> <a name="fireItemStateChanged-java.awt.event.ItemEvent-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>fireItemStateChanged</h4> <pre>protected void fireItemStateChanged(<a href="../../java/awt/event/ItemEvent.html" title="class in java.awt.event">ItemEvent</a> e)</pre>
<div class="block">
            通知所有在此事件类型上通知有兴趣的听众。 
          </div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>e</code> -在 
            <code>ItemEvent</code>交付给听众 
           </dd>
<dt>
<span class="seeLabel">另请参见：</span>
</dt>
<dd>
<span><a href="../../javax/swing/event/EventListenerList.html" title="javax.swing.event中的类"><code>EventListenerList</code></a></span>
</dd>
</dl> </li>
</ul> <a name="getListeners-java.lang.Class-">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getListeners</h4> <pre>public &lt;T extends <a href="../../java/util/EventListener.html" title="interface in java.util">EventListener</a>&gt; T[] getListeners(<a href="../../java/lang/Class.html" title="class in java.lang">类</a>&lt;T&gt; listenerType)</pre>
<div class="block">
<span>返回此模型上当前注册为<code><em>Foo</em>Listener</code>的所有对象的数组。</span>
<span><code><em>Foo</em>Listener</code>使用<code>add<em>Foo</em>Listener</code> 。</span>
<p> <span>您可以使用类文字指定<code>listenerType</code>参数，例如<code><em>Foo</em>Listener.class</code> 。</span> <span>例如，您可以使用以下代码查询<code>DefaultButtonModel</code>实例<code>m</code>的操作侦听器：</span> </p>
<pre>  <span>ActionListener[] als = (ActionListener[])(m.getListeners(ActionListener.class));</span> </pre>
<span>如果没有这样的侦听器存在，这个方法返回一个空数组。</span>
</div>
<dl>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<span><code>listenerType</code> - 所请求的听众的类型;</span>
<span>此参数应指定从<code>java.util.EventListener</code>下降的<code>java.util.EventListener</code></span>
</dd>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             在该模型上注册为 
            <code><em>Foo</em>Listener</code>的所有对象的数组，如果没有添加这样的侦听器，则为空数组 
           </dd>
<dt>
<span class="throwsLabel">异常</span>
</dt>
<dd>
<code><a href="../../java/lang/ClassCastException.html" title="class in java.lang">ClassCastException</a></code> - 如果 
            <code>listenerType</code>没有指定实现java.util.EventListener的类或 
            <code>java.util.EventListener</code>
</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>
<a href="../../javax/swing/DefaultButtonModel.html#getActionListeners--"><code>getActionListeners()</code></a> ， 
            <a href="../../javax/swing/DefaultButtonModel.html#getChangeListeners--"><code>getChangeListeners()</code></a> ， 
            <a href="../../javax/swing/DefaultButtonModel.html#getItemListeners--"><code>getItemListeners()</code></a>
</dd>
</dl> </li>
</ul> <a name="getSelectedObjects--">
<!-- --> </a>
<ul class="blockList">
<li class="blockList"> <h4>getSelectedObjects</h4> <pre>public <a href="../../java/lang/Object.html" title="class in java.lang">Object</a>[] getSelectedObjects()</pre>
<div class="block">
            被覆盖返回 
           <code>null</code> 。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../java/awt/ItemSelectable.html#getSelectedObjects--">getSelectedObjects</a></code>在接口 
            <code><a href="../../java/awt/ItemSelectable.html" title="interface in java.awt">ItemSelectable</a></code>
</dd>
</dl> </li>
</ul> <a name="setGroup-javax.swing.ButtonGroup-">
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<ul class="blockList">
<li class="blockList"> <h4>setGroup</h4> <pre>public void setGroup(<a href="../../javax/swing/ButtonGroup.html" title="class in javax.swing">ButtonGroup</a> group)</pre>
<div class="block">
            标识按钮所属的组 - 单选按钮所需的组，它们在组内是相互排斥的。 
          </div>
<dl>
<dt>
<span class="overrideSpecifyLabel">Specified by:</span>
</dt>
<dd>
<code><a href="../../javax/swing/ButtonModel.html#setGroup-javax.swing.ButtonGroup-">setGroup</a></code>在界面 
            <code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code>
</dd>
<dt>
<span class="paramLabel">参数</span>
</dt>
<dd>
<code>group</code> - 该按钮属于 
            <code>ButtonGroup</code>
</dd>
</dl> </li>
</ul> <a name="getGroup--">
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<ul class="blockListLast">
<li class="blockList"> <h4>getGroup</h4> <pre>public <a href="../../javax/swing/ButtonGroup.html" title="class in javax.swing">ButtonGroup</a> getGroup()</pre>
<div class="block">
<span>返回按钮所属的组。</span>
<span>通常用于单选按钮，它们在组内是相互排斥的。</span>
</div>
<dl>
<dt>
<span class="returnLabel">结果</span>
</dt>
<dd>
             按钮所属的 
            <code>ButtonGroup</code>
</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>