Java ArrayList Examples

ArrayList in Java is a resizable array implementation of the List interface. It provides dynamic arrays that can grow as needed, offering more flexibility than static arrays. Below are various examples demonstrating the use of ArrayList, including common operations like adding, removing, and iterating over elements.

Basic Operations

Creating an ArrayList

Accessing Elements

Updating Elements

Removing Elements

Iterating Over an ArrayList

Using for-loop

Using for-each loop

Other Useful Operations

Checking if an ArrayList Contains an Element

Finding the Size of an ArrayList

Removing All Elements

Working with ArrayList of Objects

Suppose we have a Book class, and we want to manage a collection of books.

These examples demonstrate the versatility and ease of use of ArrayList in Java for managing collections of both primitive types and objects. From basic manipulations to more complex operations, ArrayList provides a powerful tool for handling dynamic data sets in Java applications.

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