how to add new items to an arraylist in java

/**
 * @author lautturi.com
 * Java example: add a item to an ArrayList in java
 */

import java.util.*;

public class Lautturi {

	public static void main(String[] args) {
		//create ArrayList
		ArrayList<String> arrayList = new ArrayList<String>();
		
		//add item to ArrayList

		arrayList.add("item");
		arrayList.add("First");
		arrayList.add("Second");
		arrayList.add("Third");
		
		//check if ArrayList contains item (returns boolean)
		System.out.println(arrayList.contains("item"));
		
		//remove item from ArrayList
		arrayList.remove("item");
		
		System.out.println(arrayList);
	    
	}
}

output:

true
[First, Second, Third]