Given:10. abstract class A {11. abstract void a1();12. void a2() { }13. }14. class B extends A {15. void a1() { }16. voi
Posted: Sun Jun 11, 2023 4:01 pm
Given:10. abstract class A {11. abstract void a1();12. void a2() { }13. }14. class B extends A {15. void a1() { }16. void a2() { }17. }18. class C extends B { void c1() { } }and:A x = new B(); C y = new C(); A z = new C();What are four valid examples of polymorphic method calls? (Choose four.)
A. x.a2();
B. z.a2();
C. z.c1();
D. z.a1(); E. y.c1(); F. x.a1();
A. x.a2();
B. z.a2();
C. z.c1();
D. z.a1(); E. y.c1(); F. x.a1();