java多线程执行问题

class Demo extends Thread{
    public Demo(String name){
	    super(name);
	}
	 
	public void run(){
	    for(int i=0; i<6; ++i){
		    System.out.println("i = " + i + "......Thread=" + Thread.currentThread().getName());
			try{
			    Thread.sleep(100);
			}catch(InterruptedException e){
			    System.out.println("进程被打断!");
			}
	    }
	}
}


public class Test{
   public static void main(String[] args) throws InterruptedException{
         
	    Demo d1 = new Demo("hjz");
		Demo d2 = new Demo("chb");
		d1.start();
		//另外当某一个线程因为异常而终止,其他的线程照样执行,不会受到任何影响!
		System.out.println(5/0);//throw new ArithmeticException()
		for(int i=0; i<6; ++i){
		    System.out.println("i = " + i + "......Thread=" + Thread.currentThread().getName());
			Thread.sleep(200);
		}
		
		
		d2.start();//如果开启新线程之前,就因为异常而中止了线程,那么新线程将无法开启!
   }
}
 
/*  
 class Demo extends Thread{
    public Demo(String name){
	    super(name);
	}
	//public Thread(String name) {
    //    init(null, null, name, 0);
    //} 也就是在创建线程对象的时候,通过构造函数该线程就有了名字了!
	public void run(){
	    for(int i=0; i<6; ++i){
		    System.out.println("i = " + i + "......Thread=" + getName());
			try{
			    Thread.sleep(100);
			}catch(InterruptedException e){
			    System.out.println("进程被打断!");
			}
	    }
	}
}

public class Test{
   public static void main(String[] args) throws InterruptedException{
	    Demo d1 = new Demo("hjz");
		Demo d2 = new Demo("chb");
		
		d1.run();
		d2.run();	
   }
}
 */

  

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java多线程执行问题

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