Suppose you wish to sort an array list of objects, but the object class does not implement the Comparable interface.Because you are not allowed to modify this class, you decide to provide a comparator object that implements the Comparator interface.Which method must you implement from this interface to achieve your objective?
A)sort
B)compareObject
C)compare
D)compareTo

Question

Quizplus · Accepted Answer

To achieve the objective of sorting an array list of objects where the object class does not implement the Comparable interface, we need to provide a comparator object that implements the Comparator interface. The Comparator interface has only one method that must be implemented, which is the compare() method. This method takes two objects as arguments and returns an integer value based on how the objects compare to each other. The compare() method is used to compare two objects during the sorting process. Therefore, option C is the correct answer.

Suppose You Wish to Sort an Array List of Objects