1Z0-852 Web TestEngine demo

Exit VCEDump 1Z0-852 Java Standard Edition 6 Programmer Certified Professional Upgrade
Question 10 of 15
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Q10 Multiple choice

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.)

Select all that apply.

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