Replace an element at java pgm

Replace an element at specified index of Java ArrayList

import java.util.ArrayList;

public class ReplaceElementAtSpecifiedIndexArrayListExample

{

public static void main(String[] args)

{

ArrayList arrayList = new ArrayList();

arrayList.add("1");

arrayList.add("2");

arrayList.add("3");

arrayList.set(1,"REPLACED ELEMENT");

System.out.println("ArrayList contains...");

for(int index=0; index < arrayList.size(); index++)

System.out.println(arrayList.get(index));

   }

}