/** 
* Java线程：线程的调度-休眠 
* 
* @author leizhimin 2009-11-4 9:02:40 
*/ 
public class Test { 
 public static void main(String[] args) { 
  Thread t1 = new MyThread1(); 
  Thread t2 = new Thread(new MyRunnable()); 
  t1.start(); 
  t2.start(); 
 } 
} 
class MyThread1 extends Thread { 
 public void run() { 
  for (int i = 0; i < 3; i++) { 
   System.out.println("线程1第" + i + "次执行！"); 
   try { 
    Thread.sleep(50); 
   } catch (InterruptedException e) { 
    e.printStackTrace(); 
   } 
  } 
 } 
} 
class MyRunnable implements Runnable { 
 public void run() { 
  for (int i = 0; i < 3; i++) { 
   System.out.println("线程2第" + i + "次执行！"); 
   try { 
    Thread.sleep(50); 
   } catch (InterruptedException e) { 
    e.printStackTrace(); 
   } 
  } 
 } 
}

线程2第0次执行！ 
线程1第0次执行！ 
线程1第1次执行！ 
线程2第1次执行！ 
线程1第2次执行！ 
线程2第2次执行！ 

Process finished with exit code 0