Apr 16, 2025 · The Comparator interface in Java is used to sort the objects of user-defined classes. The Comparator interface is present in java.util package. This interface allows us to define custom comparison logic outside of the class for which instances we want to sort. The comparator interface is useful when,

Jan 4, 2022 · Java Comparator interface is used to sort an array or List of objects based on custom sort order. The custom ordering of items is imposed by implementing Comparator’s compare() method in the objects.

Mar 26, 2025 · We can build one simply by making use of the Comparator or Comparable interfaces. 2. Setting Up the Example. Let’s use an example of a football team, where we want to line up the players by their rankings. We’ll start by creating a simple Player class: private int ranking; private String name; private int age; // constructor, getters, setters

In this article, we will discuss how to use the Comparator interface in Java to compare and sort objects. We will cover various ways to implement the Comparator interface and provide examples to demonstrate its usage.

Aug 3, 2022 · Here we will first learn how we can sort an array/list of primitive types and wrapper classes and then we will use java.lang.Comparable and java.util.Comparator interfaces to sort array/list of custom classes. Let’s see how we can sort primitive types or Object array and list with a simple program. /**

In this tutorial, we will first take a quick look at how Comparators were used before Java 8. We will then take an in-depth look at the new Comparator aspects mentioned above to see how java.util.Comparator has evolved into an enhanced comparison and ordering utility in Java 8.

Jul 15, 2014 · In this post, we feature a comprehensive Java comparator Example. We will show how to use java.util.Comparator interface. java.util.Comparator is an interface which is used for sorting objects in Java.

In this tutorial, we will explore the Comparator interface in Java, which allows for custom sorting logic. We will demonstrate how to use Comparator to sort a list of custom objects based on various attributes, using the latest Java version to ensure modern practices and features.

Sep 13, 2016 · In this article, we will discuss Comparator interface with its methods in detail. 1. Comparator interface: 2. Example on Comparator interface: Output: Happy Coding !! Happy Learning !!

Comparator is a interface which is used to order the different user defined objects. When we have 2 object of different classes we want to order them we will use comparator.