List lastIndexOf() Method in Java with Examples

This method returns the last index of the occurrence of the specified element in this list, or -1 if this list does not contain the element.

Syntax:

int lastIndexOf(Object o)

Parameters: This function has a single parameter, i.e, the element to be searched in the list.

Returns: This method returns the last index of occurrence of the given element in the list and returns “-1” if element is not in the list.

Below programs show the implementation of this method.



Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java code to show the implementation of
// lastIndexOf method in list interface
import java.util.*;
public class GfG {
  
    // Driver code
    public static void main(String[] args)
    {
  
        // Initializing a list of type Linkedlist
        List<Integer> l = new LinkedList<>();
        l.add(1);
        l.add(3);
        l.add(5);
        l.add(7);
        l.add(3);
        System.out.println(l);
        System.out.println(l.lastIndexOf(3));
    }
}

chevron_right


Output:

[1, 3, 5, 7, 3]
4

Program 2: Below is the code to show implementation of list.lastIndexOf() using Linkedlist.

filter_none

edit
close

play_arrow

link
brightness_4
code

// Java code to show the implementation of
// lastIndexOf method in list interface
import java.util.*;
public class GfG {
  
    // Driver code
    public static void main(String[] args)
    {
  
        // Initializing a list of type Linkedlist
        List<String> l = new LinkedList<>();
        l.add("10");
        l.add("30");
        l.add("50");
        l.add("70");
        l.add("30");
        System.out.println(l);
        System.out.println(l.lastIndexOf("30"));
    }
}

chevron_right


Output:

[10, 30, 50, 70, 30]
4

Reference:
Oracle Docs

Don’t stop now and take your learning to the next level. Learn all the important concepts of Data Structures and Algorithms with the help of the most trusted course: DSA Self Paced. Become industry ready at a student-friendly price.




My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.