Re: Query:multithread about java

Lew <>
Thu, 03 May 2007 11:37:55 -0400
Jack Dowson wrote:

There are two Demos using different way to creat a thread,one is by
inheriting class Thread while another is by implementing interface
Runnable,but the results of these two examples are quite different.

class MultiThread4 implements Runnable{
    private int ticket = 100;
    public void run(){
            System.out.println(ticket-- +"is saled by " +
class MultiThreadDemo4{
    public static void main(String[] name){
        MultiThread4 m =new MultiThread4();
        Thread t1 = new Thread(m,"Window 1");
        Thread t2 = new Thread(m,"Window 2");
        Thread t3 = new Thread(m,"Window 3");

Your Runnable example reuses the same Runnable object for all threads. Your
Thread example did not do that.

Try this instead:

  class MultiThreadDemo4
   public static void main(String[] name)
     Thread t1 = new Thread( new MultiThread4(), "Window 1" );
     Thread t2 = new Thread( new MultiThread4(), "Window 2" );
     Thread t3 = new Thread( new MultiThread4(), "Window 3" );


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