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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"><!--NewPage--><HTML><HEAD><!-- Generated by javadoc (build 1.5.0_03) on Wed Nov 02 09:53:10 CST 2005 --><META http-equiv="Content-Type" content="text/html; charset=gb2312"><TITLE>接口 java.util.concurrent.Callable 的使用 (Java 2 Platform SE 5.0)</TITLE><LINK REL ="stylesheet" TYPE="text/css" HREF="../../../../stylesheet.css" TITLE="Style"><SCRIPT type="text/javascript">function windowTitle(){ parent.document.title="接口 java.util.concurrent.Callable 的使用 (Java 2 Platform SE 5.0)";}</SCRIPT><NOSCRIPT></NOSCRIPT></HEAD><BODY BGCOLOR="white" onload="windowTitle();"><!-- ========= START OF TOP NAVBAR ======= --><A NAME="navbar_top"><!-- --></A><A HREF="#skip-navbar_top" title="跳过导航链接"></A><TABLE BORDER="0" WIDTH="100%" CELLPADDING="1" CELLSPACING="0" SUMMARY=""><TR><TD COLSPAN=2 BGCOLOR="#EEEEFF" CLASS="NavBarCell1"><A NAME="navbar_top_firstrow"><!-- --></A><TABLE BORDER="0" CELLPADDING="0" 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java.util.concurrent.Callable<br>的使用</B></H2></CENTER><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">使用 <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A> 的软件包</FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD><A HREF="#java.util.concurrent"><B>java.util.concurrent</B></A></TD><TD> 在并发编程中很常用的实用工具类。 </TD></TR></TABLE> <P><A NAME="java.util.concurrent"><!-- --></A><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor"><TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2"><A HREF="../package-summary.html">java.util.concurrent</A> 中 <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A> 的使用</FONT></TH></TR></TABLE> <P><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"><TH ALIGN="left" COLSPAN="2">返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A> 的 <A HREF="../package-summary.html">java.util.concurrent</A> 中的方法</FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><<A HREF="../../../lang/Object.html" title="java.lang 中的类">Object</A>></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#callable(java.security.PrivilegedAction)">callable</A></B>(java.security.PrivilegedAction action)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可运行给定特权的操作并返回其结果。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><<A HREF="../../../lang/Object.html" title="java.lang 中的类">Object</A>></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#callable(java.security.PrivilegedExceptionAction)">callable</A></B>(java.security.PrivilegedExceptionAction action)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可运行给定特权的异常操作并返回其结果。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><<A HREF="../../../lang/Object.html" title="java.lang 中的类">Object</A>></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#callable(java.lang.Runnable)">callable</A></B>(<A HREF="../../../lang/Runnable.html" title="java.lang 中的接口">Runnable</A> task)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可运行给定的任务并返回 <tt>null</tt>。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><T> <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#callable(java.lang.Runnable, T)">callable</A></B>(<A HREF="../../../lang/Runnable.html" title="java.lang 中的接口">Runnable</A> task, T result)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可运行给定的任务并返回给定的结果。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><T> <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#privilegedCallable(java.util.concurrent.Callable)">privilegedCallable</A></B>(<A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T> callable)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可在当前的访问控制上下文中执行给定的 <tt>callable</tt> 对象。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><T> <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#privilegedCallableUsingCurrentClassLoader(java.util.concurrent.Callable)">privilegedCallableUsingCurrentClassLoader</A></B>(<A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T> callable)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可在当前的访问控制上下文中，使用当前上下文类加载器作为上下文类加载器来执行给定的 <tt>callable</tt> 对象。</TD></TR></TABLE> <P><TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY=""><TR BGCOLOR="#CCCCFF" CLASS="TableSubHeadingColor"><TH ALIGN="left" COLSPAN="2">参数类型为 <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A> 的 <A HREF="../package-summary.html">java.util.concurrent</A> 中的方法</FONT></TH></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><T> <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#privilegedCallable(java.util.concurrent.Callable)">privilegedCallable</A></B>(<A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T> callable)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可在当前的访问控制上下文中执行给定的 <tt>callable</tt> 对象。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE>static<TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><T> <A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>Executors.</B><B><A HREF="../Executors.html#privilegedCallableUsingCurrentClassLoader(java.util.concurrent.Callable)">privilegedCallableUsingCurrentClassLoader</A></B>(<A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T> callable)</CODE><BR> 返回 <A HREF="../Callable.html" title="java.util.concurrent 中的接口"><CODE>Callable</CODE></A> 对象，调用它时可在当前的访问控制上下文中，使用当前上下文类加载器作为上下文类加载器来执行给定的 <tt>callable</tt> 对象。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><V> <A HREF="../ScheduledFuture.html" title="java.util.concurrent 中的接口">ScheduledFuture</A><V></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>ScheduledThreadPoolExecutor.</B><B><A HREF="../ScheduledThreadPoolExecutor.html#schedule(java.util.concurrent.Callable, long, java.util.concurrent.TimeUnit)">schedule</A></B>(<A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><V> callable, long delay, <A HREF="../TimeUnit.html" title="java.util.concurrent 中的枚举">TimeUnit</A> unit)</CODE><BR> </TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><V> <A HREF="../ScheduledFuture.html" title="java.util.concurrent 中的接口">ScheduledFuture</A><V></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>ScheduledExecutorService.</B><B><A HREF="../ScheduledExecutorService.html#schedule(java.util.concurrent.Callable, long, java.util.concurrent.TimeUnit)">schedule</A></B>(<A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><V> callable, long delay, <A HREF="../TimeUnit.html" title="java.util.concurrent 中的枚举">TimeUnit</A> unit)</CODE><BR> 创建并执行在给定延迟后启用的 ScheduledFuture。</TD></TR><TR BGCOLOR="white" CLASS="TableRowColor"><TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1"><CODE><TABLE BORDER="0" CELLPADDING="0" CELLSPACING="0" SUMMARY=""><TR ALIGN="right" VALIGN=""><TD NOWRAP><FONT SIZE="-1"><CODE><T> <A HREF="../Future.html" title="java.util.concurrent 中的接口">Future</A><T></CODE></FONT></TD></TR></TABLE></CODE></FONT></TD><TD><CODE><B>ScheduledThreadPoolExecutor.</B><B><A HREF="../ScheduledThreadPoolExecutor.html#submit(java.util.concurrent.Callable)">submit</A></B>(<A HREF="../Callable.html" title="java.util.concurrent 中的接口">Callable</A><T> task)</CODE>⌨️ 快捷键说明
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