Object Oriented Programming (OOPs)

Question : 70 of 72

Marks: +1, -0

Given:

1. class Dog { }
2. class Beagle extends Dog { }
3.
4. class Kennel {
5.   public static void main(String [] arfs) {
6.    Beagle b1 = new Beagle();
7.    Dog dog1 = new Dog();
8.    Dog dog2 = b1;
9.    /*insert code here*/
10.  }
11. }

Which, inserted at line 9, will compile? (Choose all that apply.)

Beagle b2 = (Beagle) dog1;
Beagle b3 = (Beagle) dog2;
Beagle b4 = dog2;
None of the above statements will compile

Validate

Go to Question:

Prev Question

Next Question