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260 lines
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260 lines
12 KiB
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<div class="header">
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javax.sound.sampled
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<h2 class="title" title="Class EnumControl">Class EnumControl</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><a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">javax.sound.sampled.Control</a></li>
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<li>
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<ul class="inheritance">
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<li>javax.sound.sampled.EnumControl</li>
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</ul> </li>
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</ul> </li>
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<div class="description">
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<hr/> <br/> <pre>public abstract class <span class="typeNameLabel">EnumControl</span>
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extends <a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">Control</a></pre>
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<div class="block">
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<span>A <code>EnumControl</code>提供对一组离散可能值的控制，每个值由对象表示。</span>
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<span>在图形用户界面中，这样的控件可以由一组按钮来表示，每个按钮选择一个值或设置。</span>
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<span>例如，混响控制可以提供多个预设的混响设置，而不是提供将由<code><a href="../../../javax/sound/sampled/FloatControl.html" title="class in javax.sound.sampled"><code>FloatControl</code></a></code>对象表示的<code><a href="../../../javax/sound/sampled/FloatControl.html" title="class in javax.sound.sampled"><code>FloatControl</code></a></code> 。</span>
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<p> <span>只提供两个设置之间进行选择控件通常可以代替实现为<code><a href="../../../javax/sound/sampled/BooleanControl.html" title="class in javax.sound.sampled"><code>BooleanControl</code></a></code> ，并提供带一些可量化的维度的一组值的控件可能被改为实现为<code>FloatControl</code>用粗的分辨率。</span> <span>但是， <code>EnumControl</code>一个关键特性是返回的值是任意对象，而不是数值或布尔值。</span> <span>这意味着每个返回的对象都可以提供更多的信息。</span> <span>例如， <code><a href="../../../javax/sound/sampled/EnumControl.Type.html#REVERB"><code>REVERB</code></a></code>控件的设置是<a href="../../../javax/sound/sampled/ReverbType.html" title="class in javax.sound.sampled"><code>ReverbType</code></a>的<code><a href="../../../javax/sound/sampled/ReverbType.html" title="class in javax.sound.sampled"><code>ReverbType</code></a></code> ，可以查询每个设置使用的参数值。</span> </p>
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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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1.3
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</dd>
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</dl> </li>
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</ul>
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</div>
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<div class="summary">
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<ul class="blockList">
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<li class="blockList">
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<!-- ======== NESTED CLASS SUMMARY ======== -->
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<li class="blockList"><a name="nested.class.summary">
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<!-- --> </a> <h3>Nested Class Summary</h3>
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<table border="0" cellpadding="3" cellspacing="0" class="memberSummary" summary="Nested Class Summary table, listing nested classes, and an explanation">
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<caption>
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<span>Nested Classes</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">Class and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>static class </code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/EnumControl.Type.html" title="class in javax.sound.sampled">EnumControl.Type</a></span></code>
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<div class="block">
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<code>EnumControl.Type</code>内部类的实例标识了一种枚举控件。
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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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<!-- ======== 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="colFirst" scope="col">Modifier</th>
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<th class="colLast" scope="col">Constructor and Description</th>
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</tr>
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<tr class="altColor">
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<td class="colFirst"><code>protected </code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/EnumControl.html#EnumControl-javax.sound.sampled.EnumControl.Type-java.lang.Object:A-java.lang.Object-">EnumControl</a></span>(<a href="../../../javax/sound/sampled/EnumControl.Type.html" title="class in javax.sound.sampled">EnumControl.Type</a> type, <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>[] values, <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> value)</code>
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<div class="block">
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使用给定的参数构造一个新的枚举控制对象。
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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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<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><a href="../../../java/lang/Object.html" title="class in java.lang">Object</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/EnumControl.html#getValue--">getValue</a></span>()</code>
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<div class="block">
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获取此控件的当前值。
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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><a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>[]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/EnumControl.html#getValues--">getValues</a></span>()</code>
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<div class="block">
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返回此控件的可能值集。
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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>void</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/EnumControl.html#setValue-java.lang.Object-">setValue</a></span>(<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> value)</code>
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<div class="block">
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设置控件的当前值。
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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/lang/String.html" title="class in java.lang">String</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/EnumControl.html#toString--">toString</a></span>()</code>
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<div class="block">
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提供控件的字符串表示形式。
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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.javax.sound.sampled.Control">
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<!-- --> </a> <h3>Methods inherited from class javax.sound.sampled.<a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">Control</a></h3> <code><a href="../../../javax/sound/sampled/Control.html#getType--">getType</a></code></li>
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</ul>
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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#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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<!-- ========= 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="EnumControl-javax.sound.sampled.EnumControl.Type-java.lang.Object:A-java.lang.Object-">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>EnumControl</h4> <pre>protected EnumControl(<a href="../../../javax/sound/sampled/EnumControl.Type.html" title="class in javax.sound.sampled">EnumControl.Type</a> type,
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<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>[] values,
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<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> value)</pre>
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<div class="block">
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使用给定的参数构造一个新的枚举控制对象。
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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>type</code> - 表示此枚举控件对象的控件类型
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</dd>
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<dd>
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<code>values</code> - 控件的一组可能的值
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</dd>
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<dd>
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<code>value</code> - 初始控制值
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</dd>
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</dl> </li>
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</ul> </li>
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</ul>
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<!-- ============ METHOD DETAIL ========== -->
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<ul class="blockList">
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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="setValue-java.lang.Object-">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>setValue</h4> <pre>public void setValue(<a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> value)</pre>
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<div class="block">
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<span>设置控件的当前值。</span>
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<span>默认实现只是按照指示设置值。</span>
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<span>如果不支持指示的值，则抛出IllegalArgumentException。</span>
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<span>一些控件要求在打开它们的行之前，通过设置值来影响它们的行。</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>value</code> - 所需的新值
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</dd>
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<dt>
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<span class="throwsLabel">异常</span>
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</dt>
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<dd>
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<code><a href="../../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果指示的值不在容许范围内
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</dd>
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</dl> </li>
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</ul> <a name="getValue--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getValue</h4> <pre>public <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a> getValue()</pre>
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<div class="block">
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获取此控件的当前值。
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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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当前值
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</dd>
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</dl> </li>
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</ul> <a name="getValues--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getValues</h4> <pre>public <a href="../../../java/lang/Object.html" title="class in java.lang">Object</a>[] getValues()</pre>
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<div class="block">
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返回此控件的可能值集。
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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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一组可能的值
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</dd>
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</dl> </li>
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</ul> <a name="toString--">
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<!-- --> </a>
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<ul class="blockListLast">
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<li class="blockList"> <h4>toString</h4> <pre>public <a href="../../../java/lang/String.html" title="class in java.lang">String</a> toString()</pre>
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<div class="block">
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提供控件的字符串表示形式。
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">重写：</span>
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</dt>
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<dd>
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<code><a href="../../../javax/sound/sampled/Control.html#toString--">toString</a></code>在类别
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<code><a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">Control</a></code>
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</dd>
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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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一个字符串描述
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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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