Unlike Comparable, a comparator may optionally permit comparison of null arguments, while maintaining the requirements for an equivalence relation. This interface is a member of the Java …

Mar 26, 2025 · The Comparator interface defines a compare (arg1, arg2) method with two arguments that represent compared objects, and works similarly to the Comparable.compareTo () method.

Nov 25, 2025 · The Comparator interface in Java is used to define custom sorting logic for objects. It belongs to java.util package and allows sorting of objects of user-defined classes without modifying …

An object that implements the Comparator interface is called a comparator. The Comparator interface allows you to create a class with a compare() method that compares two objects to decide which one …

Jul 23, 2024 · In this blog post, we'll explore how to use the Comparable and Comparator interfaces to sort custom objects in Java. I'll provide examples to illustrate the differences and use cases for each …

Nov 12, 2025 · In Java, the Comparator interface plays a crucial role in sorting and ordering objects. It provides a way to define custom ordering rules for objects of a particular class.

Apr 9, 2025 · This blog covers the Comparator interface in Java with examples, showing how to implement custom and multi-level sorting logic. Learn how to sort objects by different criteria using …

Comparator (Java Platform SE 8 )

Oct 6, 2025 · Comparable — for natural ordering of objects. Comparator — for custom or multiple orderings.

Aug 18, 2025 · In Java, both Comparable and Comparator interfaces are used for sorting objects. The main difference between Comparable and Comparator is: Comparable: It is used to define the …