testrunnable.java

有大量的java的实例

import java.applet.Applet;
import java.awt.*;

public class TestRunnable extends Applet implements Runnable	//Java Applet主类
{
	Label prompt1 = new Label("第一个子线程");	//标签1
	Label prompt2 = new Label("第二个子线程");	//标签2
	TextField threadFirst = new TextField(14);	//文本框1
	TextField threadSecond = new TextField(14);	//文本框2
	Thread thread1,thread2;				//两个Thread的线程对象
	int count1=0,count2=0;	         		//两个计数器

	public void init()
	{
		add(prompt1);
		add(threadFirst);
		add(prompt2);
		add(threadSecond);
        }
public void start()
{  //创建线程对象，具有当前类的run()方法，并用字符串指定线程对象的名字
	thread1 = new Thread(this,"FirstThread");
	thread2 = new Thread(this,"SecondThread");
	thread1.start();		//启动线程对象，进入就绪状态
	thread2.start();
}
public void run() //实现Runnable接口的run()方法，在该线程启动时自动执行
{
	String currentRunning;
	while(true)//无限循环
	{
          try
	  {	//使当前活动线程休眠0到3秒
		Thread.sleep((int)(Math.random() * 30000));
	  }
	  catch(InterruptedException e){}
	  currentRunning = Thread.currentThread().getName();
	  if(currentRunning.equals("FirstThread"))
	  {	count1++;
		threadFirst.setText("线程1第"+count1+"次被调度");
	  }
	  else if(currentRunning.equals("SecondThread"))
	  {
		count2++;
		threadSecond.setText("线程2第"+count2+"次被调度");
	  }
	}//while循环结束
}//run()方法结束
}