sample16_5.java

Java SE 6.0前12-16章示的示例代码,简单易学

package wyf.jc;
//定义Runnable的实现类
class MyRunnable implements Runnable
{
	//声明标识线程的两个字符串
	private String flagl;
	private String flagr;
	//MyRunnable的构造器
	public MyRunnable(String flagl,String flagr)
	{
		//初始化标识字符串
		this.flagl=flagl;
		this.flagr=flagr;
	}	
	//重写run方法，指定该线程执行的代码
	public void run()
	{
		for(int i=0;i<30;i++)
		{
			System.out.print(flagl+i+flagr);
			//调用yield方法使当前正在执行的线程让步
			Thread.yield();
		}
	}
}
//主类
public class Sample16_5
{
	public static void main(String[] args)
	{
		//创建两个实现Runnable接口的类的对象
		MyRunnable mr1=new MyRunnable("[","] ");
		MyRunnable mr2=new MyRunnable("<","> ");
		//创建两个线程Thread对象，并指定执行的target
		Thread t1=new Thread(mr1);
		Thread t2=new Thread(mr2);
		//启动线程t1、t2
		t1.start();	
		t2.start();	
	}
}