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 …

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 …

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 …

Mar 26, 2025 · Comparisons in Java are quite easy, until they’re not. When working with custom types, or trying to compare objects that aren’t directly comparable, we need to make use of a …

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 …

Apr 7, 2025 · Java Comparator interface is used to order the objects of a user-defined class. This interface is found in java.util package and contains 2 methods compare (Object obj1,Object …

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 …

Jan 8, 2024 · Java 8 introduced several enhancements to the Comparator interface, including a handful of static functions that are of great utility when coming up with a sort order for …

obj1 and obj2 are the objects to be compared. This method returns zero if the objects are equal. It returns a positive value if obj1 is greater than obj2. Otherwise, a negative value is returned. By …