#arraylist tutorial

class ArrayList<>

All implemented Interfaces

Serializable , Cloneable , Iterable<E> , Collection <E> , List<E> , RandonAccess

Direct Known sub-classes

AttributeList , RoleList , RoleUnsolvedList

Java ArrayList is one of the implementing classes to List interface. Due to it’s resizable nature , ArrayList is also known as ‘Resizable-array’ implementation. All the methods in Collectionand List…

What is an ArrayList ?

  ArrayList is a resizable implementation of the List interface.

An ArrayList internally uses an array to store its elements.

  Already have good understanding of ArrayList ?

  Let’s go through some puzzles to test your understanding :

  Java Quiz 31 : Puzzle on removing element from an arraylist

Java Quiz 32 : Puzzle on removing arraylist elements with duplicates

Java Quiz…