Exam 1z0-808 topic 1 question 193 discussion

Answer A - Line Number 18 will throw ClassCast Exception

Answer is A

class CC1 { } class CC2 extends CC1 { } public class CC3 extends CC2 { public static void main(String[] args) { CC1 obj1 = (CC1) new CC2(); CC2 obj2 = (CC2) new CC3(); CC2 obj3 = (CC2) new CC1(); // ClassCastException CC3 obj4 = (CC3) obj2; } } /* Exception in thread "main" java.lang.ClassCastException: class questions.CC1 cannot be cast to class questions.CC2 (questions.CC1 and questions.CC2 are in unnamed module of loader 'app') at questions.CC3.main(CC3.java:18) */ Answer is A

The answer is the letter A. C1 cannot access the methods of class C2 because the superclass cannot inherit the methods of the child class.

Answer is A: line 18