Why does Comparator declare equals?

Question

The Comparator interface has its own equals() method. Any class will get equals() by default through Object class. What is the need to have equal

Answer 1

Comparator interface have their own equals() method

Well,. first of all, it should be clear that whenever you implement Comparable interface you should provide your program to decide when objects are equal, less or greater.

I am quite confuse about have equals() inside Comparator. Any class will get equals() by default through Object class.

The equals() method implementation u inherit from Object class only checks whether the two referances point to the same object or not. It dosn't apply any comparison. It's you who will provide in your class (or possibly in your Interface) the criteria for objects to be equal.

Then what is need to have equals() method inside an interface?

Obviously , whenever you implement when objects are less , greater than you must implement when they are equal. so rather than relying on default Object equals() method you should provide your logic to check equality