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public void run()
Runnable 运行对象构造的,则调用该 Runnable 对象的 run 方法;否则,该方法不执行任何操作并返回。
Thread 的子类应该重写该方法。Runnable 的对象创建一个线程时,启动该线程将导致在独立执行的线程中调用对象的 run 方法。
run 的常规协定是,它可能执行任何所需的操作。package com.dashu.thread;
public class DoSomething implements Runnable {
private String name;
public DoSomething(String name) {
this.name = name;
}
public void run() {
// TODO Auto-generated method stub
for (int i = 0; i < 10; i++) {
for (long k = 0; k < 100000000; k++)
;
System.out.println(name + ": " + i);
}
}
}
package com.dashu.thread;
public class TestThread {
public static void main(String[] args) {
DoSomething do1 = new DoSomething("乌龟");
DoSomething do2 = new DoSomething("王八");
Thread t1 = new Thread(do1);
Thread t2 = new Thread(do2);
t1.start();
t2.start();
}
}

2、扩展Thread类实现的多线程例子
package com.dashu.thread;
public class TestThread extends Thread{
public TestThread(String name) {
super(name);
}
public void run() {
for(int i = 0;i<5;i++){
for(long k= 0; k <100000000;k++);
System.out.println(this.getName()+" :"+i);
}
}
public static void main(String[] args) {
Thread t1 = new TestThread("王八");
Thread t2 = new TestThread("乌龟");
t1.start();
t2.start();
}
}
执行的结果和方法一差不多。
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原文地址:http://www.cnblogs.com/dashumeizi/p/4485404.html