class A implements Runnable{
   B b=new B();
 public void run(){
  while(true){
   System.out.println("H1"+Thread.currentThread().getName());
  }
 }

}

public class Test {
 public static void main(String[] str){
  A a1 =new A();
//  A a2 =new A();
//
  Thread t1 =new Thread(a1, "Vichi");
  Thread t2 =new Thread(a1,"Vishu");
  t1.start();
  t2.start();

 }
}

what will be the ans: 1) only one of them will get the chance to execute 2) both will get chance in arbitrary manner

please suggest possible ans with explations