See Example:
import java.util.ArrayList;
public class Dmo1 {
public static void main(String[] args) {
ArrayList<String> arrlist = getArrayList();
}
public static ArrayList<String> getArrayList(){ // Add and remove ArrayList //ArrayList<String> Declaration ArrayList<String> al= new ArrayList<String>(); //add method for String ArrayList al.add("Item3"); al.add("Item2"); al.add("Item1"); al.add("Item5"); al.add("Item6"); System.out.println("Elements of ArrayList of String Type: "+al); al.add(3,"Computer"); System.out.println("Add Elements 'Howdy' of ArrayList of String Type : "+al); //remove index from an ArrayList al.remove(3); System.out.println("Remove Elements 'Computer' of ArrayList of String Type : "+al); //ArrayList<Integer> Declaration ArrayList<Integer> al2 = new ArrayList<Integer>(); //add method for integer ArrayList al2.add(1); al2.add(34); al2.add(99); al2.add(99); al2.add(78); System.out.println("Elements of ArrayList of Integer Type: "+al2); return al; }
}
//result:
Elements of ArrayList of String Type: [Item3, Item2, Item1, Item5, Item6]
Add Elements 'Computer' of ArrayList of String Type : [Item3, Item2, Item1, Computer, Item5, Item6]
Remove Elements 'Computer' of ArrayList of String Type : [Item3, Item2, Item1, Item5, Item6]
Elements of ArrayList of Integer Type: [1, 34, 99, 99, 78]
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