How do I use ArrayList class?

import java.util.ArrayList;
import java.util.List;
 
public class ArrayListExample
{
    public static void main(String[] args)
    {
        List list = new ArrayList();
 
        // adding items into array list
        list.add("Item 1");
        list.add("Item 2");
        list.add("Item 3");
 
        // remove the third item from array list
        list.remove(2);
 
        // iterate array list item and print it
        for (int i = 0; i < list.size(); i++)
        {
            String item = (String) list.get(i);
            System.out.println("Item = " + item);
        }
 
        Object[] array = list.toArray();
    }
}