Finding the index of an element in an ArrayList using built-in function (contains)

 

import java.util.*;

public class LinkeListOper2 {

public static void main(String args[]) {

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

ll.add("john");

ll.add("kiyan");

ll.add("kayna");

ll.add("cristy");

Scanner sc = new Scanner(System.in);

System.out.println("Enter the element from the list whose index you want to know");

System.out.println("The List is : " + ll);

String str = sc.nextLine();

int index = ll.indexOf(str);

System.out.println("Index of " + str + " is = " + index);

}

}