Retaining common element of two LinkedList using in-built Function

 

import java.util.*;

public class LinkeListOper5 {

public static void main(String args[]) {

LinkedList<String> list1 = new LinkedList<>();

list1.add("john");

list1.add("kiyan");

list1.add("kayna");

list1.add("cristy");

System.out.println("Before retaining the list1 is : " + list1);

LinkedList<String> list2 = new LinkedList<>();

list2.add("kiyan");

list2.add("cristy");

list2.add("rahul");

System.out.println("Before retaining the list2 is : " + list2);

//this function will copy the common elements of list1 and list2

list1.retainAll(list2);

System.out.println("Afte retaining the list is : " + list1);

}

}