Multiple Choice Question

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Submitted by c-admin on Wed, 05/29/2019 - 00:30

QID:

191

Type:

Multiple Choice Question

Category:

Java Programmer I

Tags:

Abstraction

Question:

What should be inserted in the code given below at line marked //10:

class MyClass{
}
class MyComparable implements Comparable&lt;MyClass&gt;{
public int compareTo( *INSERT CODE HERE* x ){ //10
return 0;
}
}

Select 1 option

A. Object
B. MyClass
C. Object<MyClass>
D. Comparable<MyClass>
E. Comparable

Answer and Explanation (Click to expand)

Answer:

Explanation:

Since MyComparable class specifies that it implements the Comparable interface that has been typed to MyClass, it must implement compareTo method that takes a MyClass. Had it not declared a typed Comparable in its implements clause, compareTo(Object x) would have been correct.

Q&A Set:

Set 23

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