import com.dumbcollections.ArrayList; import com.dumbcollections.LinkedList; public class DumbCollectionsExample { public static void main(String[] args) { ArrayList<Integer> numbers = new ArrayList<>(); numbers.add(1); numbers.add(2); numbers.add(3); System.out.println(numbers); LinkedList<String> names = new LinkedList<>(); names.add("Alice"); names.add("Bob"); names.add("Charlie"); System.out.println(names); names.reverse(); System.out.println(names); } }