Test Question

[jithu1]

In Case Of Runtime Polymorphism______________

A. Late Binding Is Taking Place At Run Time
B. Late Binding Is Taking Place At Compile Time
C. Compiler Doesnt Know How To Respond
D. None Of The Above

Does Anyone Know The Answer To This Question And Why?

[JosAH]

In Case Of Runtime Polymorphism______________

A. Late Binding Is Taking Place At Run Time
B. Late Binding Is Taking Place At Compile Time
C. Compiler Doesnt Know How To Respond
D. None Of The Above

Does Anyone Know The Answer To This Question And Why?

Think of the following little scenario:

abstract class B { abstract void foo(); }
class D1 extends B { void foo() { System.out.println("D1"); } }
class D2 extends B { void foo() { System.out.println("D2"); } }
 
class Test {
   public static void main(String[] args) {
      B d1= new D1();
      B d2= new D2();
      d1.foo();
      d2.foo();
   }
}

Now check the four possible answers and see what the compiler can
possibly know about the foo() calls.

kind regards,

Jos