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338 lines
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338 lines
14 KiB
HTML
<div class="header">
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<div class="subTitle">
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javax.swing
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</div>
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<h2 class="title" title="Class ButtonGroup">Class ButtonGroup</h2>
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</div><div class="contentContainer">
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<ul class="inheritance">
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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>
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<ul class="inheritance">
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<li>javax.swing.ButtonGroup</li>
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</ul> </li>
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</ul>
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<div class="description">
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<dl>
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<dt>
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All Implemented Interfaces:
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</dt>
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<dd>
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<span><a href="../../java/io/Serializable.html" title="java.io中的接口">Serializable</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public class <span class="typeNameLabel">ButtonGroup</span>
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extends <a href="../../java/lang/Object.html" title="class in java.lang">Object</a>
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implements <a href="../../java/io/Serializable.html" title="interface in java.io">Serializable</a></pre>
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<div class="block">
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<span>此类用于为一组按钮创建多重排除范围。</span>
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<span>使用相同的<code>ButtonGroup</code>对象创建一组按钮意味着打开“其中一个”按钮会关闭组中的所有其他按钮。</span>
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<p> <span>A <code>ButtonGroup</code>可以与继承自<code>AbstractButton</code>任何一组对象一起使用。</span> <span>典型地，按钮组包含的实例<code>JRadioButton</code> ， <code>JRadioButtonMenuItem</code> ，或<code>JToggleButton</code> 。</span> <span>将<code>JButton</code>或<code>JMenuItem</code>的实例放在按钮组中是没有意义的，因为<code>JButton</code>和<code>JMenuItem</code>不实现所选状态。</span> </p>
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<p> <span>最初，组中的所有按钮都被取消选择。</span> </p>
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<p> <span>有关使用按钮组的示例和进一步信息，请参阅<em>“Java教程</em> ”中<em>的</em> <a href="http://docs.oracle.com/javase/tutorial/uiswing/components/button.html#radiobutton">How to Use Radio Buttons</a> 。</span> </p>
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<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，对于所有JavaBeans的长期存储的支持已被添加到<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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</div> </li>
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</div>
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<div class="summary">
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<!-- =========== FIELD SUMMARY =========== -->
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<li class="blockList"><a name="field.summary">
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<!-- --> </a> <h3>Field Summary</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Field Summary table, listing fields, and an explanation">
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<caption>
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<span>Fields</span>
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<span class="tabEnd"> </span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Field and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>protected <a href="../../java/util/Vector.html" title="class in java.util">Vector</a><<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a>></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#buttons">buttons</a></span></code> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<ul class="blockList">
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<li class="blockList"><a name="constructor.summary">
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<!-- --> </a> <h3>构造方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Constructor Summary table, listing constructors, and an explanation">
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<caption>
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<span>构造方法</span>
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<span class="tabEnd"> </span>
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</caption>
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<tbody>
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<tr>
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<th class="colOne" scope="col">Constructor and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colOne"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#ButtonGroup--">ButtonGroup</a></span>()</code>
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<div class="block">
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创建一个新的
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<code>ButtonGroup</code> 。
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</div> </td>
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</tr>
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</tbody>
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</table> </li>
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</ul>
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<!-- ========== METHOD SUMMARY =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="method.summary">
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<!-- --> </a> <h3>方法摘要</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Method Summary table, listing methods, and an explanation">
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<caption>
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<span class="activeTableTab" id="t0"><span>所有方法</span><span class="tabEnd"> </span></span>
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<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="t4"><span><a href="javascript:show(8);">具体的方法</a></span><span class="tabEnd"> </span></span>
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</caption>
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<tbody>
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<tr>
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<th class="colFirst" scope="col">Modifier and Type</th>
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<th class="colLast" scope="col">Method and Description</th>
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</tr>
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<tr class="altColor" id="i0">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#add-javax.swing.AbstractButton-">add</a></span>(<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a> b)</code>
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<div class="block">
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将按钮添加到组。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i1">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#clearSelection--">clearSelection</a></span>()</code>
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<div class="block">
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清除选择，使得没有选择
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<code>ButtonGroup</code>中的按钮。
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</div> </td>
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</tr>
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<tr class="altColor" id="i2">
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<td class="colFirst"><code>int</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#getButtonCount--">getButtonCount</a></span>()</code>
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<div class="block">
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返回组中按钮的数量。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i3">
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<td class="colFirst"><code><a href="../../java/util/Enumeration.html" title="interface in java.util">Enumeration</a><<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a>></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#getElements--">getElements</a></span>()</code>
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<div class="block">
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返回参与此组的所有按钮。
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</div> </td>
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</tr>
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<tr class="altColor" id="i4">
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<td class="colFirst"><code><a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#getSelection--">getSelection</a></span>()</code>
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<div class="block">
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返回所选按钮的型号。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i5">
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<td class="colFirst"><code>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#isSelected-javax.swing.ButtonModel-">isSelected</a></span>(<a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a> m)</code>
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<div class="block">
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返回是否选择
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<code>ButtonModel</code> 。
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</div> </td>
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</tr>
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<tr class="altColor" id="i6">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#remove-javax.swing.AbstractButton-">remove</a></span>(<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a> b)</code>
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<div class="block">
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从组中删除按钮。
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</div> </td>
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</tr>
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<tr class="rowColor" id="i7">
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<td class="colFirst"><code>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../javax/swing/ButtonGroup.html#setSelected-javax.swing.ButtonModel-boolean-">setSelected</a></span>(<a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a> m, boolean b)</code>
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<div class="block">
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设置
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<code>ButtonModel</code>的选定值。
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</div> </td>
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</tr>
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</tbody>
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</table>
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<ul class="blockList">
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<li class="blockList"><a name="methods.inherited.from.class.java.lang.Object">
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<!-- --> </a> <h3>Methods inherited from class java.lang.<a href="../../java/lang/Object.html" title="class in java.lang">Object</a></h3> <code><a href="../../java/lang/Object.html#clone--">clone</a>, <a href="../../java/lang/Object.html#equals-java.lang.Object-">equals</a>, <a href="../../java/lang/Object.html#finalize--">finalize</a>, <a href="../../java/lang/Object.html#getClass--">getClass</a>, <a href="../../java/lang/Object.html#hashCode--">hashCode</a>, <a href="../../java/lang/Object.html#notify--">notify</a>, <a href="../../java/lang/Object.html#notifyAll--">notifyAll</a>, <a href="../../java/lang/Object.html#toString--">toString</a>, <a href="../../java/lang/Object.html#wait--">wait</a>, <a href="../../java/lang/Object.html#wait-long-">wait</a>, <a href="../../java/lang/Object.html#wait-long-int-">wait</a></code></li>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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<div class="details">
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<ul class="blockList">
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<li class="blockList">
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<!-- ============ FIELD DETAIL =========== -->
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<ul class="blockList">
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<li class="blockList"><a name="field.detail">
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<!-- --> </a> <h3>字段详细信息</h3> <a name="buttons">
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<ul class="blockListLast">
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<li class="blockList"> <h4>buttons</h4> <pre>protected <a href="../../java/util/Vector.html" title="class in java.util">Vector</a><<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a>> buttons</pre> </li>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<li class="blockList"><a name="constructor.detail">
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<!-- --> </a> <h3>构造方法详细信息</h3> <a name="ButtonGroup--">
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<ul class="blockListLast">
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<li class="blockList"> <h4>ButtonGroup</h4> <pre>public ButtonGroup()</pre>
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<div class="block">
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创建一个新的
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<code>ButtonGroup</code> 。
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</div> </li>
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</ul> </li>
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</ul>
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<!-- ============ METHOD DETAIL ========== -->
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<li class="blockList"><a name="method.detail">
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<!-- --> </a> <h3>方法详细信息</h3> <a name="add-javax.swing.AbstractButton-">
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<ul class="blockList">
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<li class="blockList"> <h4>add</h4> <pre>public void add(<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a> b)</pre>
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<div class="block">
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将按钮添加到组。
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>b</code> - 要添加的按钮
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</dd>
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</dl> </li>
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</ul> <a name="remove-javax.swing.AbstractButton-">
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<ul class="blockList">
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<li class="blockList"> <h4>remove</h4> <pre>public void remove(<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a> b)</pre>
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<div class="block">
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从组中删除按钮。
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>b</code> - 要删除的按钮
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</dd>
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</ul> <a name="clearSelection--">
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<li class="blockList"> <h4>clearSelection</h4> <pre>public void clearSelection()</pre>
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<div class="block">
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清除选择，使得没有选择
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<code>ButtonGroup</code>中的按钮。
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</div>
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<dl>
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<dt>
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<span class="simpleTagLabel">从以下版本开始：</span>
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</dt>
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<dd>
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1.6
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</dd>
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</dl> </li>
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</ul> <a name="getElements--">
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<li class="blockList"> <h4>getElements</h4> <pre>public <a href="../../java/util/Enumeration.html" title="interface in java.util">Enumeration</a><<a href="../../javax/swing/AbstractButton.html" title="class in javax.swing">AbstractButton</a>> getElements()</pre>
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<div class="block">
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返回参与此组的所有按钮。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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该组中的按钮为
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<code>Enumeration</code>
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</dd>
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</dl> </li>
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<li class="blockList"> <h4>getSelection</h4> <pre>public <a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a> getSelection()</pre>
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<div class="block">
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返回所选按钮的型号。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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所选按钮型号
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</dd>
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</dl> </li>
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</ul> <a name="setSelected-javax.swing.ButtonModel-boolean-">
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<li class="blockList"> <h4>setSelected</h4> <pre>public void setSelected(<a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a> m,
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boolean b)</pre>
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<div class="block">
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<span>设置<code>ButtonModel</code>的选定值。</span>
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<span>一次只能选择组中的一个按钮。</span>
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</div>
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<dl>
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<dt>
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<span class="paramLabel">参数</span>
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</dt>
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<dd>
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<code>m</code> -
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<code>ButtonModel</code>
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</dd>
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<dd>
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<code>b</code> -
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<code>true</code>如果该按钮被选中，否则
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<code>false</code>
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</dd>
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</dl> </li>
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</ul> <a name="isSelected-javax.swing.ButtonModel-">
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<li class="blockList"> <h4>isSelected</h4> <pre>public boolean isSelected(<a href="../../javax/swing/ButtonModel.html" title="interface in javax.swing">ButtonModel</a> m)</pre>
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<div class="block">
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返回是否选择了
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<code>ButtonModel</code> 。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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<code>true</code>如果按钮被选中，否则返回
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<code>false</code>
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</dd>
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</dl> </li>
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</ul> <a name="getButtonCount--">
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<ul class="blockListLast">
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<li class="blockList"> <h4>getButtonCount</h4> <pre>public int getButtonCount()</pre>
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<div class="block">
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返回组中按钮的数量。
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</div>
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<dl>
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<dt>
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<span class="returnLabel">结果</span>
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</dt>
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<dd>
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按钮计数
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</dd>
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<dt>
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<span class="simpleTagLabel">从以下版本开始：</span>
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</dt>
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<dd>
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1.3
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</dd>
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</dl> </li>
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</ul> </li>
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</ul> </li>
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</ul>
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</div>
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