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https://github.com/fofolee/uTools-Manuals.git
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399 lines
22 KiB
HTML
399 lines
22 KiB
HTML
<div class="header">
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<div class="subTitle">
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javax.sound.sampled
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</div>
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<h2 class="title" title="Interface Line">Interface Line</h2>
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</div><div class="contentContainer">
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<div class="description">
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<ul class="blockList">
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<li class="blockList">
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<dl>
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<dt>
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All Superinterfaces:
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</dt>
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<dd>
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<span><a href="../../../java/lang/AutoCloseable.html" title="java.lang中的接口">AutoCloseable</a></span>
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</dd>
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</dl>
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<dl>
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<dt>
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All Known Subinterfaces:
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</dt>
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<dd>
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<span><a href="../../../javax/sound/sampled/Clip.html" title="javax.sound.sampled中的接口">Clip</a> ， <a href="../../../javax/sound/sampled/DataLine.html" title="javax.sound.sampled中的接口">DataLine</a> ， <a href="../../../javax/sound/sampled/Mixer.html" title="javax.sound.sampled中的接口">Mixer</a> ， <a href="../../../javax/sound/sampled/Port.html" title="javax.sound.sampled中的接口">Port</a> ， <a href="../../../javax/sound/sampled/SourceDataLine.html" title="javax.sound.sampled中的接口">SourceDataLine</a> ， <a href="../../../javax/sound/sampled/TargetDataLine.html" title="javax.sound.sampled中的接口">TargetDataLine</a></span>
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</dd>
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</dl>
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<hr/> <br/> <pre>public interface <span class="typeNameLabel">Line</span>
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extends <a href="../../../java/lang/AutoCloseable.html" title="interface in java.lang">AutoCloseable</a></pre>
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<div class="block">
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<span>所述<code>Line</code>接口表示单声道或多声道音频馈送。</span>
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<span>线是数字音频“流水线”的一个元素，例如混频器，输入或输出端口，或进入或离开混频器的数据路径。</span>
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<p> <span>线可以有控制，如增益，平移和混响。</span> <span>控件本身就是扩展基础<code><a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled"><code>Control</code></a></code>类的类的实例。</span> <span><code>Line</code>接口提供两种访问方法来获取线路的控件： <code><a href="../../../javax/sound/sampled/Line.html#getControls--"><code>getControls</code></a></code>返回整个集合，而<code><a href="../../../javax/sound/sampled/Line.html#getControl-javax.sound.sampled.Control.Type-"><code>getControl</code></a></code>返回指定类型的单个控件。</span> </p>
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<p> <span>线条在不同时期存在于各种状态。</span> <span>当一条线路打开时，它将为其自身保留系统资源，当它关闭时，这些资源被释放用于其他对象或应用程序。</span> <span><code><a href="../../../javax/sound/sampled/Line.html#isOpen--"><code>isOpen()</code></a></code>方法可以让您发现线路是开放还是关闭。</span> <span>然而，开线不需要处理数据。</span> <span>这种处理通常由诸如<code><a href="../../../javax/sound/sampled/SourceDataLine.html#write-byte:A-int-int-"><code>SourceDataLine.write</code></a></code>和<code><a href="../../../javax/sound/sampled/TargetDataLine.html#read-byte:A-int-int-"><code>TargetDataLine.read</code></a></code>之类的<code><a href="../../../javax/sound/sampled/SourceDataLine.html#write-byte:A-int-int-"><code>SourceDataLine.write</code></a></code>接口方法来<code><a href="../../../javax/sound/sampled/TargetDataLine.html#read-byte:A-int-int-"><code>TargetDataLine.read</code></a></code> 。</span> </p>
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<p> <span>每当线路状态发生变化时，您可以注册一个对象来接收通知。</span> <span>该对象必须实现<code><a href="../../../javax/sound/sampled/LineListener.html" title="interface in javax.sound.sampled"><code>LineListener</code></a></code>接口，它由单方法<code><a href="../../../javax/sound/sampled/LineListener.html#update-javax.sound.sampled.LineEvent-"><code>update</code></a></code> 。</span> <span>当线路打开和关闭时（如果是<a href="../../../javax/sound/sampled/DataLine.html" title="javax.sound.sampled中的接口"><code>DataLine</code></a> ，启动和停止），将调用此方法。</span> </p>
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<p> <span>可以注册一个对象来监听多行。</span> <span>它接收在其事件<code>update</code>方法将指定哪些线创建的事件，这是什么类型的事件（ <code>OPEN</code> ， <code>CLOSE</code> ， <code>START</code> ，或<code>STOP</code> ）许多样品如何帧的行，并在事件发生的时间已经处理。</span> </p>
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<p> <span>某些行操作（如打开和关闭）可以在线路是共享音频资源时由非特权代码调用时生成安全异常。</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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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<span><a href="../../../javax/sound/sampled/LineEvent.html" title="javax.sound.sampled中的类"><code>LineEvent</code></a></span>
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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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<ul class="blockList">
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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">Interface 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/Line.Info.html" title="class in javax.sound.sampled">Line.Info</a></span></code>
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<div class="block">
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<code>Line.Info</code>对象包含有关行的信息。
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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="t3"><span><a href="javascript:show(4);">抽象方法</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/sound/sampled/Line.html#addLineListener-javax.sound.sampled.LineListener-">addLineListener</a></span>(<a href="../../../javax/sound/sampled/LineListener.html" title="interface in javax.sound.sampled">LineListener</a> listener)</code>
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<div class="block">
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在此行添加一个侦听器。
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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/sound/sampled/Line.html#close--">close</a></span>()</code>
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<div class="block">
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关闭该行，表示可以释放该行所使用的任何系统资源。
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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><a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">Control</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/Line.html#getControl-javax.sound.sampled.Control.Type-">getControl</a></span>(<a href="../../../javax/sound/sampled/Control.Type.html" title="class in javax.sound.sampled">Control.Type</a> control)</code>
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<div class="block">
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获取指定类型的控件，如果有的话。
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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="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">Control</a>[]</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/Line.html#getControls--">getControls</a></span>()</code>
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<div class="block">
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获取与此行相关联的一组控件。
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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/sound/sampled/Line.Info.html" title="class in javax.sound.sampled">Line.Info</a></code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/Line.html#getLineInfo--">getLineInfo</a></span>()</code>
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<div class="block">
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获取描述此行的
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<code>Line.Info</code>对象。
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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/sound/sampled/Line.html#isControlSupported-javax.sound.sampled.Control.Type-">isControlSupported</a></span>(<a href="../../../javax/sound/sampled/Control.Type.html" title="class in javax.sound.sampled">Control.Type</a> control)</code>
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<div class="block">
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指示线路是否支持指定类型的控制。
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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>boolean</code></td>
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<td class="colLast"><code><span class="memberNameLink"><a href="../../../javax/sound/sampled/Line.html#isOpen--">isOpen</a></span>()</code>
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<div class="block">
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表示线路是否打开，这意味着它已经预留了系统资源并且可以运行，尽管它可能当前没有播放或捕获声音。
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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/sound/sampled/Line.html#open--">open</a></span>()</code>
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<div class="block">
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打开该行，表明它应该获取任何所需的系统资源并运行。
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</div> </td>
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</tr>
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<tr class="altColor" id="i8">
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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/Line.html#removeLineListener-javax.sound.sampled.LineListener-">removeLineListener</a></span>(<a href="../../../javax/sound/sampled/LineListener.html" title="interface in javax.sound.sampled">LineListener</a> listener)</code>
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<div class="block">
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从此行的侦听器列表中删除指定的侦听器。
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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> </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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<!-- ============ 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="getLineInfo--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getLineInfo</h4> <pre><a href="../../../javax/sound/sampled/Line.Info.html" title="class in javax.sound.sampled">Line.Info</a> getLineInfo()</pre>
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<div class="block">
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获取描述此行的
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<code>Line.Info</code>对象。
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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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线的描述
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</dd>
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</dl> </li>
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</ul> <a name="open--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>open</h4> <pre>void open()
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throws <a href="../../../javax/sound/sampled/LineUnavailableException.html" title="class in javax.sound.sampled">LineUnavailableException</a></pre>
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<div class="block">
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<span>打开该行，表明它应该获取任何所需的系统资源并运行。</span>
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<span>如果此操作成功，该行将被标记为打开，并且<code>OPEN</code>事件将调度到该行的监听器。</span>
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<p> <span>请注意，一旦关闭，一些行不能重新打开。</span> <span>尝试重新打开此行将始终导致<code>LineUnavailableException</code> 。</span> </p>
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<p> <span>某些类型的行具有可能影响资源分配的可配置属性。</span> <span>例如， <code>DataLine</code>必须以特定格式和缓冲区大小打开。</span> <span>这样的行应该提供一种用于配置这些属性的机制，例如允许应用程序指定所需设置的<code>open</code>方法或方法。</span> </p>
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<p> <span>此方法不使用参数，并打开与当前设置的行。</span> <span>对于<code><a href="../../../javax/sound/sampled/SourceDataLine.html" title="interface in javax.sound.sampled"><code>SourceDataLine</code></a></code>和<code><a href="../../../javax/sound/sampled/TargetDataLine.html" title="interface in javax.sound.sampled"><code>TargetDataLine</code></a></code>对象，这意味着该行以默认设置打开。</span> <span>但是，对于<code><a href="../../../javax/sound/sampled/Clip.html" title="interface in javax.sound.sampled"><code>Clip</code></a></code> ，在加载数据时确定缓冲区大小。</span> <span>由于此方法不允许应用程序指定要加载的任何数据，因此将抛出IllegalArgumentException异常。</span> <span>因此，你应该使用的一个<code>open</code>种提供的方法<code>Clip</code>接口将数据加载到<code>Clip</code> 。</span> </p>
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<p> <span>对于<code>DataLine</code> ，如果用于检索该行的<code>DataLine.Info</code>对象指定了至少一个完全限定的音频格式，则最后一个将被用作默认格式。</span> </p>
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</div>
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<dl>
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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> - 如果在Clip实例上调用此方法。
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</dd>
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<dd>
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<code><a href="../../../javax/sound/sampled/LineUnavailableException.html" title="class in javax.sound.sampled">LineUnavailableException</a></code> - 如果由于资源限制，该行无法打开。
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</dd>
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<dd>
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<code><a href="../../../java/lang/SecurityException.html" title="class in java.lang">SecurityException</a></code> - 如果由于安全限制，该行无法打开。
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<span><a href="../../../javax/sound/sampled/Line.html#close--"><code>close()</code></a> ， <a href="../../../javax/sound/sampled/Line.html#isOpen--"><code>isOpen()</code></a> ， <a href="../../../javax/sound/sampled/LineEvent.html" title="javax.sound.sampled中的类"><code>LineEvent</code></a> ， <a href="../../../javax/sound/sampled/DataLine.html" title="javax.sound.sampled中的接口"><code>DataLine</code></a> ， <a href="../../../javax/sound/sampled/Clip.html#open-javax.sound.sampled.AudioFormat-byte:A-int-int-"><code>Clip.open(AudioFormat, byte[], int, int)</code></a> ， <a href="../../../javax/sound/sampled/Clip.html#open-javax.sound.sampled.AudioInputStream-"><code>Clip.open(AudioInputStream)</code></a></span>
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</dd>
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</dl> </li>
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</ul> <a name="close--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>close</h4> <pre>void close()</pre>
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<div class="block">
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<span>关闭该行，表示可以释放该行所使用的任何系统资源。</span>
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<span>如果此操作成功，该行将被标记为关闭，并且<code>CLOSE</code>事件将发送到该行的监听器。</span>
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</div>
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<dl>
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<dt>
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<span class="overrideSpecifyLabel">Specified by:</span>
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</dt>
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<dd>
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<code><a href="../../../java/lang/AutoCloseable.html#close--">close</a></code>在界面
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<code><a href="../../../java/lang/AutoCloseable.html" title="interface in java.lang">AutoCloseable</a></code>
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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/SecurityException.html" title="class in java.lang">SecurityException</a></code> - 如果线路由于安全限制而无法关闭。
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<span><a href="../../../javax/sound/sampled/Line.html#open--"><code>open()</code></a> ， <a href="../../../javax/sound/sampled/Line.html#isOpen--"><code>isOpen()</code></a> ， <a href="../../../javax/sound/sampled/LineEvent.html" title="javax.sound.sampled中的类"><code>LineEvent</code></a></span>
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</dd>
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</dl> </li>
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</ul> <a name="isOpen--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>isOpen</h4> <pre>boolean isOpen()</pre>
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<div class="block">
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表示线路是否打开，这意味着它已经预留了系统资源并且可以运行，尽管它可能当前没有播放或捕获声音。
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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>如果行是打开的，否则
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<code>false</code>
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</dd>
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<dt>
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<span class="seeLabel">另请参见：</span>
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</dt>
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<dd>
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<a href="../../../javax/sound/sampled/Line.html#open--"><code>open()</code></a> ，
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<a href="../../../javax/sound/sampled/Line.html#close--"><code>close()</code></a>
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</dd>
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</dl> </li>
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</ul> <a name="getControls--">
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<!-- --> </a>
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<ul class="blockList">
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<li class="blockList"> <h4>getControls</h4> <pre><a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">Control</a>[] getControls()</pre>
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<div class="block">
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<span>获取与此行相关联的一组控件。</span>
|
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<span>某些控件只有在线路打开时才可用。</span>
|
||
<span>如果没有控件，此方法返回一个长度为0的数组。</span>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
控件的数组
|
||
</dd>
|
||
<dt>
|
||
<span class="seeLabel">另请参见：</span>
|
||
</dt>
|
||
<dd>
|
||
<a href="../../../javax/sound/sampled/Line.html#getControl-javax.sound.sampled.Control.Type-"><code>getControl(javax.sound.sampled.Control.Type)</code></a>
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="isControlSupported-javax.sound.sampled.Control.Type-">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>isControlSupported</h4> <pre>boolean isControlSupported(<a href="../../../javax/sound/sampled/Control.Type.html" title="class in javax.sound.sampled">Control.Type</a> control)</pre>
|
||
<div class="block">
|
||
<span>指示线路是否支持指定类型的控制。</span>
|
||
<span>某些控件只有在线路打开时才可用。</span>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>control</code> - 查询支持的控件的类型
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
<code>true</code>如果支持指定类型的至少一个控件，否则
|
||
<code>false</code> 。
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="getControl-javax.sound.sampled.Control.Type-">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>getControl</h4> <pre><a href="../../../javax/sound/sampled/Control.html" title="class in javax.sound.sampled">Control</a> getControl(<a href="../../../javax/sound/sampled/Control.Type.html" title="class in javax.sound.sampled">Control.Type</a> control)</pre>
|
||
<div class="block">
|
||
<span>获取指定类型的控件，如果有的话。</span>
|
||
<span>某些控件只有在线路打开时才可用。</span>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>control</code> - 请求的控件的类型
|
||
</dd>
|
||
<dt>
|
||
<span class="returnLabel">结果</span>
|
||
</dt>
|
||
<dd>
|
||
指定类型的控制
|
||
</dd>
|
||
<dt>
|
||
<span class="throwsLabel">异常</span>
|
||
</dt>
|
||
<dd>
|
||
<code><a href="../../../java/lang/IllegalArgumentException.html" title="class in java.lang">IllegalArgumentException</a></code> - 如果不支持指定类型的控件
|
||
</dd>
|
||
<dt>
|
||
<span class="seeLabel">另请参见：</span>
|
||
</dt>
|
||
<dd>
|
||
<a href="../../../javax/sound/sampled/Line.html#getControls--"><code>getControls()</code></a> ，
|
||
<a href="../../../javax/sound/sampled/Line.html#isControlSupported-javax.sound.sampled.Control.Type-"><code>isControlSupported(Control.Type control)</code></a>
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="addLineListener-javax.sound.sampled.LineListener-">
|
||
<!-- --> </a>
|
||
<ul class="blockList">
|
||
<li class="blockList"> <h4>addLineListener</h4> <pre>void addLineListener(<a href="../../../javax/sound/sampled/LineListener.html" title="interface in javax.sound.sampled">LineListener</a> listener)</pre>
|
||
<div class="block">
|
||
<span>在此行添加一个侦听器。</span>
|
||
<span>每当行的状态发生变化时，监听器的<code>update()</code>方法将使用描述更改的<code>LineEvent</code>对象进行调用。</span>
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>listener</code> - 作为监听器添加到此行的对象
|
||
</dd>
|
||
<dt>
|
||
<span class="seeLabel">另请参见：</span>
|
||
</dt>
|
||
<dd>
|
||
<span><a href="../../../javax/sound/sampled/Line.html#removeLineListener-javax.sound.sampled.LineListener-"><code>removeLineListener(javax.sound.sampled.LineListener)</code></a> ， <a href="../../../javax/sound/sampled/LineListener.html#update-javax.sound.sampled.LineEvent-"><code>LineListener.update(javax.sound.sampled.LineEvent)</code></a> ， <a href="../../../javax/sound/sampled/LineEvent.html" title="javax.sound.sampled中的类"><code>LineEvent</code></a></span>
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> <a name="removeLineListener-javax.sound.sampled.LineListener-">
|
||
<!-- --> </a>
|
||
<ul class="blockListLast">
|
||
<li class="blockList"> <h4>removeLineListener</h4> <pre>void removeLineListener(<a href="../../../javax/sound/sampled/LineListener.html" title="interface in javax.sound.sampled">LineListener</a> listener)</pre>
|
||
<div class="block">
|
||
从此行的侦听器列表中删除指定的侦听器。
|
||
</div>
|
||
<dl>
|
||
<dt>
|
||
<span class="paramLabel">参数</span>
|
||
</dt>
|
||
<dd>
|
||
<code>listener</code> - 要删除的监听器
|
||
</dd>
|
||
<dt>
|
||
<span class="seeLabel">另请参见：</span>
|
||
</dt>
|
||
<dd>
|
||
<a href="../../../javax/sound/sampled/Line.html#addLineListener-javax.sound.sampled.LineListener-"><code>addLineListener(javax.sound.sampled.LineListener)</code></a>
|
||
</dd>
|
||
</dl> </li>
|
||
</ul> </li>
|
||
</ul> </li>
|
||
</ul>
|
||
</div>
|
||
</div> |