Guide to ListUtils in Java

Utility Class for List interface from Apache Commons Collection Library We’ll learn about the ListUtils class from the Apache Commons Collection Library in this tutorial. This class provides utility and decorator methods for the List interface in Java. Most developers are familiar with well-known classes from the java.util package, such as Collections.java and Arrays.java, which provide built-in methods to operate on the List interface. Google Guava is another library that provides many utility methods via the Lists.java class.

A project called the Apache Commons Collections is used to create and maintain a group of classes that are modeled after and motivated by the Java Development Kit (JDK) collection framework. It offers a wide range of classes to deal with routine programming tasks involving the Collection Framework. We’ll look at the ListUtils class, which has some interesting features for working with List instances in Java. To include the library, add the following dependency to the project’s POM.xml file:

Let’s now create a simple user object that we’ll use to test the ListUtils class’s functionality. Lombok's annotations are used to create a class called UserObject, as shown below:

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