Look at the following code. What is missing from ClassA?
Line 1 public interface MyInterface
Line 2 {
Line 3 int FIELDA = 55;
Line 4 public int methodA(double);
Line 5 }
Line 6 public class ClassA implements MyInterface
Line 7 {
Line 8 FIELDA = 60;
Line 9 public int methodB(double) { }
Line 10 }
A) It does not override methoda.
B) It does not have a constructor.
C) It does not overload methoda.
D) Nothing is missing. It is a complete class.

Question

Quizplus · Accepted Answer

ClassA implements MyInterface which has a method called methodA with a parameter of type double. ClassA must implement this method and provide its own implementation. In this code, there is no implementation of methodA in ClassA, so option A is correct. Option B is incorrect because the code does not require a constructor. Option C is incorrect because there is only one method called methodA in the interface, and overloading it would require a different method name or a different parameter list. Option D is incorrect because the code is missing an implementation of methodA in ClassA.

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