java arraylist string methods code example

Example 1: java arraylist

import java.util.List; //list abstract class
import java.util.ArrayList; //arraylist class

//Object Lists
List l = new ArrayList();
ArrayList a = new ArrayList();

//Specialized List
List l = new ArrayList();
ArrayList a = new ArrayList();
//only reference data types allowed in brackets <>

//Initial Capacity
List l = new ArrayList(5);
//list will start with a capacity of 5
//saves allocation times

Example 2: java how to create arraylist

import java.util.ArrayList;
//create ArrayList
ArrayList arrayList = new ArrayList();