//ArrayList is a class in the Java API, unlike array, ArrayList object's size is automatically adjusted

import java.util.ArrayList;

public class eg12_ArrayList
{
	public static void main(String[] args)
	{
		ArrayList nameList = new ArrayList();  //create ArrayList object
		nameList.add("James");
		nameList.add("Catherine");
		nameList.add("Bill");
		
		//Display the items and indices
		for (int index=0; index<nameList.size(); index++) 
		{
			System.out.println("Index: " + index + ", Name: " + nameList.get(index));
		}
		
		//now remove the item at index 1
		nameList.remove(1);
		
		System.out.println("The item at index 1 is removed. Here are the items now");
		for (int index=0; index<nameList.size(); index++) 
		{
			System.out.println("Index: " + index + ", Name: " + nameList.get(index));
		}
		//need to do casting String str = (String)nameList.get(0); is assign to String
		
		//now insert an item at index 1
		nameList.add(1, "Mary");
		System.out.println("Mary was added at index 1. Here are the items now"
		);
		for (int index=0; index<nameList.size(); index++) 
		{
			System.out.println("Index: " + index + ", Name: " + nameList.get(index));
		}
		
	}
}