mythread.java

java课件及例程有一些PPT及一些例程

import java.util.*;
class MyThread extends Thread {
   int pauseTime;
   public MyThread(int hTime, String name) {
     super(name);
     pauseTime = hTime;
    }
   public void run() {
    for(int i=0;i<5;i++) {
      try {
      System.out.println(this.getName() + "：" + new Date(System.currentTimeMillis()));
      //Thread.sleep(pauseTime);
      this.yield();
       }
     catch(Exception e)  {
       System.out.println("线程错误："+e);
        }
       }
      }
  static public void main(String args[]) {
    System.out.println("1，当前活动线程数量为:"+Thread.activeCount());	
    MyThread myThread1 = new MyThread(2000, "线程A");
    myThread1.start();
    System.out.println("2，当前活动线程数量为::"+Thread.activeCount());
    MyThread myThread2 = new MyThread(2000, "线程B");
    myThread2.start();
    System.out.println("3，当前活动线程数量为:"+Thread.activeCount());
    System.out.println("线程myThread1的名字为："+myThread1.getName());
    System.out.println("线程myThread2的名字为："+myThread2.getName());
    myThread1.setName("线程1");
    System.out.println("线程myThread1的名字改为："+myThread1.getName());
  }
}