Elements in an ArrayList are actually objects. In the examples above, we created elements (objects) of type "String". Remember that a String in Java is an object (not a primitive type). To …

The ArrayList class is used to implement resizable-arrays in Java. In this tutorial, we will learn about the ArrayList class and its methods with the help of examples.

Oct 24, 2025 · An ArrayList in Java is a resizable (or dynamic) array from the java.util package that can grow or shrink automatically as elements are added or removed, unlike regular arrays …

May 21, 2025 · This resource offers a total of 110 Java ArrayList problems for practice. It includes 22 main exercises, each accompanied by solutions, detailed explanations, and four related …

Dec 14, 2024 · In this quick article, we had a look at the ArrayList in Java. We showed how to create an ArrayList instance, and how to add, find, or remove elements using different …

This tutorial will cover all methods of ArrayList with examples and outputs. Additionally, it will highlight key points, use cases, best practices, performance considerations, and a real-time …

Jun 10, 2025 · This blog post will delve into the fundamental concepts of `ArrayList`, its usage methods, common practices, and best practices to help you gain an in - depth understanding …

Oct 1, 2025 · Suppose you have an ArrayList, and want to keep (or retain) only certain elements in it. With retainAll we can specify a list of elements to keep—all the rest are removed.

Sep 14, 2023 · In this tutorial, you will learn how to get a sublist of elements from ArrayList in Java. You can get the subset of elements from any specified range by using methods provided …

May 21, 2019 · Java ArrayList class is a resizable array that implements the List interface. It permits all elements, including null and also implements all optional list operations.