From Java 10, you can use the var keyword to declare an ArrayList variable without writing the type twice. The compiler figures out the type from the value you assign.

Resizable-array implementation of the List interface. Implements all optional list operations, and permits all elements, including null. In addition to implementing the List interface, this class provides methods …

Feb 3, 2026 · ArrayList in Java is a resizable array provided in the java.util package. Unlike normal arrays, its size can grow or shrink dynamically as elements are added or removed.

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.

Learn how to effectively use Java ArrayList for dynamic data storage with examples and best practices. Master syntax, operations, and performance tips for optimal coding.

Dec 14, 2024 · In this tutorial, we’ll look at the ArrayList class from the Java Collections Framework. We’ll discuss its properties, common use cases, and advantages and disadvantages.

Sep 16, 2025 · ArrayList is essentially a dynamic wrapper over a normal array. Internally, ArrayList uses an Object[] array: If you create an ArrayList without specifying capacity: It starts with a default...

Nov 12, 2025 · This blog post will delve into the fundamental concepts, usage methods, common practices, and best practices of `ArrayList` in Java, accompanied by clear code examples.

Sep 27, 2025 · Learn ArrayList in Java with key features, syntax, operations, and examples. Understand when to use ArrayList for dynamic, ordered, and type-safe lists.

Apr 1, 2025 · This Tutorial Explains How to Declare, Initialize & Print Java ArrayList with Code Examples. You will also Learn about Implementation of ArrayList in Java.