W3School TIY Editor

import java.util.ArrayList; public class Main { public static void main(String[] args) { ArrayList<String> cars = new ArrayList<String>(); cars.add("Volvo"); cars.add("BMW"); cars.add("Ford"); cars.add("Tesla"); ArrayList<String> brands = new ArrayList<String>(); brands.add("Microsoft"); brands.add("W3School"); brands.add("Apple"); brands.addAll(cars); System.out.println(brands); } }