What is the result?

One thought on “What is the result?”

1. Option A.

   class Star {
   public void doStuff() {
   System.out.println(“Twinkling Star”);
   }
   }

   interface Universe {
   public void doStuff();
   }

   class Sun extends Star implements Universe {
   public void doStuff() {
   System.out.println(“Shining Sun”);
   }
   }

   public class Test {
   public static void main(String[] args) {
   Star obj2 = new Sun();
   Star obj3 = obj2;
   ((Sun) obj3).doStuff();
   ((Star) obj2).doStuff();
   ((Universe) obj2).doStuff();
   }
   }

   Output:
   Shining Sun
   Shining Sun
   Shining Sun

   1

   Reply

2. A

   3

   Reply