Java tutorial
import java.util.ArrayList; public class Main { public static void main(String args[]) { ArrayList<Integer> arrlist = new ArrayList<Integer>(5); arrlist.add(1); arrlist.add(2); arrlist.add(4); System.out.println(arrlist); ArrayList<Integer> arrlist2 = new ArrayList<Integer>(5); arrlist2.add(2); arrlist2.add(3); arrlist2.add(3); arrlist2.add(3); System.out.println(arrlist2); // inserting all elements arrlist.addAll(arrlist2); System.out.println(arrlist); } }