Given the following generic method, which of the following is a possible return type?
Public static <E extends Comparable> E max(E[] a) { . . . }
I String
II Object
III Double

Question

Given the following generic method, which of the following is a possible return type?
Public static <E extends Comparable> E max(E[] a) { . . . }
I String
II Object
III Double
A) I
B) II
C) I and II
D) I and III

Quizplus · Accepted Answer

The return type of max() method is a type parameter E which extends Comparable. Therefore, the possible return types will be some class that implements the Comparable interface, i.e., String, Double, or any other class that implements Comparable, such as Integer, Character or even custom classes. Object is not a possible return type since it is not guaranteed to implement the Comparable interface. Thus, the correct answer is option D.

Given the Following Generic Method, Which of the Following Is