This Tutorial Explains How to Declare, Initialize & Print Java ArrayList with Code Examples. You will also learn about 2D Arraylist & Implementation of ArrayList in Java:
Java Collections Framework and the List interface were explained in detail in our previous tutorials. ArrayList is a data structure that is part of the Collections Framework and can be viewed as similar to arrays and vectors.
ArrayList can be perceived as a dynamic array that allows you to add or remove elements from it any time or simply said, dynamically.
=> Take A Look At The Java Beginners Guide Here.
In other words, its size can increase or decrease dynamically unlike arrays whose size remains static once declared.
What You Will Learn:
- ArrayList Class In Java
- Create And Declare ArrayList
- Constructor Methods
- Method #1: ArrayList[]
- Method #2: ArrayList [int capacity]
- Method #3: ArrayList [Collection