Question

I wanted to print 100 as output in the below program.

I am getting 0 as answer.

    class s extends Thread{
    int j=0; 
        public void run() { 
            try{Thread.sleep(5000);} 
            catch(Exception e){} 
            j=100; 
        } 
        public static void main(String args[]) 
        { 
            s t1=new s(); 
            t1.start(); 
            System.out.println(t1.j); 
        } 

}

Answer 1

You have join the t1 to main.
So, the parent thread(main()) will wait till the child thread is complete.