Java实现多线程的例子

package thread_test;  
 
/** 
* 测试Runnable类实现的多线程程序  
*  
* @author ciding  
* @createTime Dec 7, 2011 9:38:52 AM 
* 
*/ 
public class TestRunnable {   
    public static void main(String[] args) {   
        StrRunnable sr1 = new StrRunnable("chenfengbin");  
        StrRunnable sr2 = new StrRunnable("cidng");  
 
        Thread t1 = new Thread(sr1);  
        Thread t2 = new Thread(sr2);  
 
        t1.start();   
        t2.start();   
          
        StrThread st1 = new StrThread("chenfengbin");  
        StrThread st2 = new StrThread("cidng");  
 
        Thread t3 = new Thread(st1);  
        Thread t4 = new Thread(st2);  
 
        t3.start();   
        t4.start();   
    }  
}  
 
/** 
* 通过实现接口的多线程 
*  
* @author ciding  
* @createTime Dec 8, 2011 10:20:28 PM 
* 
*/ 
class StrRunnable  implements Runnable {   
    private String name;   
 
    public StrRunnable(String name) {   
        this.name = name;   
    }   
 
    public void run() {   
        for (int i = 0; i < 3; i++) {   
            for(long j=0;j<100000000;j++);   //用来模拟一个非常耗时的操作，方便显示多线程效果。  
            System.out.println("Runnable下的" + name + ": " + i);  
        }   
    }   
}  
 
/** 
* 通过继承类的多线程 
*  
* @author ciding  
* @createTime Dec 8, 2011 10:20:50 PM 
* 
*/ 
class StrThread extends Thread{  
    private String name;  
      
    public StrThread(String name){  
        this.name = name;  
    }  
      
    public void run() {   
        for (int i = 0; i < 3; i++) {   
            for(long j=0;j<100000000;j++);   //用来模拟一个非常耗时的操作，方便显示多线程效果。  
            System.out.println("Thread下的" + name + ": " + i);  
        }   
    }  
}