public class ThreadTester {
  	public static void main( String args[]) {
  		HelloRunner r = new HelloRunner();
  		Thread t = new Thread( r);
  		t. start();
  	}
  }
 
  class HelloRunner implements Runnable {
  	int i;

 	public void run() {
 		i = 0;
	
 		while (true) {
 			System. out. println(" Hello " + i++);
 			if ( i == 50 ) {
 				break;
 			}
 		}
 	}
 }