14. DATA STRUCTURES - Brief Introduction to Array Lists

DATA STRUCTURES - ARRAY LISTS - ArrayList is an array that automatically reallocates itself a large capacity whenever it runs out of room. - When the array is full, a new larger array is created and the items are copied into larger array. - ArrayList is very efficient for locating an element in a list and for inserting an element at the end of the list. - ArrayList is a resizable-array implementation of the List interface. It complements traditional java arrays. - ArrayList inherits AbstractList class and implements all optional list operations, and permits all elements, including null. - Some of the methods include : add(), addall(),clear(),remove(), removeall(),contains() and many more.

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