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Object Oriented Programming (OOPs)

Question : 22

Total: 72

Given:

1.interface A { public int getValue(); }
2.class B implements A {
3.  public int getValue() { return 1; }
4.}
5.class C extends B {
6.  /*insert code here*/
7.}

Which three code fragments, inserted individually at line 6, make use of polymorphism?

public void add(C c) { c.getValue(); }
public void add(B b) { b.getValue(); }
public void add(A a) { a.getValue(); }
public void add(A a, B b) { a.getValue(); }
public void add(C c1, C c2) { c1.getValue(); }

Validate

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