Java ArrayList
Java ArrayList is a resizable array implementation of the Java List interface, part of the Java Collections Framework. It allows dynamic resizing as elements are added or removed, offering methods like Java add(), Java remove(), and Java get(). Introduced in Java 1995 with Java 1.2, Java ArrayList is widely used for managing lists of objects due to its flexibility and ease of use.
https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html
Java ArrayList is a class that implements the Java List interface and provides a resizable array-like data structure. Unlike regular arrays, which have a fixed size, Java ArrayList allows dynamic resizing as elements are added or removed. It provides fast access to elements by index, making it suitable for scenarios where frequent access to elements is required. Java ArrayList is widely used for managing collections of objects and offers a variety of methods for adding, removing, and manipulating elements.
Java ArrayList provides methods like Java add(), Java remove(), Java get(), and Java set(), which make it easy to modify and access elements in a collection. Java ArrayList can store any type of object, and since it implements the Java List interface, it supports ordered elements with duplicates allowed. Java ArrayList's internal structure is an array, but it dynamically grows when more space is needed, which allows for efficient memory management and improved flexibility over fixed-size arrays.
Java ArrayList was introduced in Java 1995 with Java 1.2 as part of the Java Collections Framework. It has become one of the most commonly used classes for storing data in Java, due to its simple interface, ease of use, and flexibility. For example, in web applications, Java ArrayList is often used to manage lists of objects such as user profiles, product listings, or database records.
Despite its flexibility, Java ArrayList is not thread-safe by default. If multiple threads need to access the same Java ArrayList, external synchronization is required. In some cases, Java provides alternative classes like Java CopyOnWriteArrayList for thread-safe access. For further details on Java ArrayList, refer to the official Java documentation.
https://docs.oracle.com/javase/8/docs/api/java/util/ArrayList.html