ArrayList_1

ArrayList

A class that implements the List interface of the Java Collections Framework, providing dynamic array-like behavior.

Dynamic size

The ability of ArrayLists to resize themselves, allowing flexible storage of elements without needing to specify size beforehand.

Generic Typing

ArrayLists can store elements of any type, making them versatile for collections of different object classes.

Ordered Collection

ArrayLists maintain the order of elements in which they are inserted, aiding in iteration and retrieval.

Random Access

The capability of ArrayLists to access elements quickly using their index.

Methods of ArrayList

ArrayLists provide methods such as add(), remove(), set(), and clear() for efficient manipulation.

Adding elements

The operation to store new items in an ArrayList using the add() method.

Accessing elements

Retrieving items from an ArrayList using the get() method.

Changing an item

Updating an existing item in an ArrayList using the set() method.

Removing an item

The operation of deleting an element from an ArrayList using the remove() method.

Looping through an ArrayList

The process of accessing each element in an ArrayList using a loop construct.

Sorting an ArrayList

Rearranging elements of an ArrayList in a specified order, either ascending or descending.