T1_ArrayList.java

import java.util.ArrayList;


public class T1_ArrayList {
    public static void main(String[] args) {
        // Create a arraylist
        ArrayList<Integer> list = new ArrayList<>();

        // 1. create
        list.add(10);
        list.add(20);
        list.add(30);
        list.add(40);
        list.add(50);
        System.out.println("Current List: " +  list);

        // read
        System.out.println("Reading a element: " +  list.get(0));

        // update
        System.out.println("Updating a element:");
        list.set(2, 1000);
        System.out.println(list);

        // delete
        System.out.println("Deleting a element");
        list.remove(2);
        System.out.println(list);

        // size
        System.out.println("SIZE: " + list.size());

        // Traverse
        for(int i = 0; i < list.size(); i++){
            System.out.print(list.get(i) + " ");
        }


    }
}