多個線程作用于同一個runnable對象

學習了：https://www.cnblogs.com/ligang305/archive/2012/08/10/2632126.html

http://ask.bdqn.cn/view/15700

http://blog.csdn.net/tomli2017/article/details/70176732

雖然Runnable是一個，但是線程是十個；

package com.stono.thread2;import java.lang.management.ManagementFactory; import java.lang.management.ThreadInfo; import java.lang.management.ThreadMXBean; import java.util.concurrent.TimeUnit;public class Runnable2Threads implements Runnable {private int i;public Runnable2Threads(int i) {this.i = i;}public static void main(String[] args) {Runnable2Threads runnable2Threads = new Runnable2Threads(100);for(int i=0;i<10;i++){Thread thread = new Thread(runnable2Threads);thread.start();}ThreadMXBean threadMXBean = ManagementFactory.getThreadMXBean();ThreadInfo[] dumpAllThreads = threadMXBean.dumpAllThreads(false, false);for (ThreadInfo threadInfo : dumpAllThreads) {// 雖然runnable是一個，但是線程卻是十個； System.out.println(threadInfo.getThreadName());}}@Overridepublic void run() {System.out.println(i);try {TimeUnit.SECONDS.sleep(10);} catch (InterruptedException e) {e.printStackTrace();}} }

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