Java Program to join two linked lists

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("List of first linked list: " + link_list);
         
  LinkedList <String> link_list1 = new LinkedList <String> ();
  link_list1.add("Java");
  link_list1.add("HTML");
  System.out.println("List of second linked list: " + link_list1);
        
  LinkedList <String> link_lists = new LinkedList <String> ();
  link_lists.addAll(link_list);
  link_lists.addAll(link_list1);
  System.out.println("New linked list: " + link_lists);
 }
}