Java Program to replace an element in a linked list

import java.util.*;
public class demo1 
{
 public static void main(String[] args)
 {
  LinkedList<String> link_list = new LinkedList<String>();
  link_list.add("C#");
  link_list.add("C++");
  link_list.add("Python");
  link_list.add("Perl");
  link_list.add("Ruby");
  System.out.println("Original linked list: " + link_list);
       
  link_list.set(2, "Java");
  System.out.println("The value of link list element changed.");
  System.out.println("New linked list: " + link_list);
 }
}