LinkedList lastIndexOf() Method in Java with Examples

The lastIndexOf(Object element) method of LinkedList class present inside java.util package is used to check and find the occurrence of a particular element in the list. If the element is present in the list then the lastIndexOf() method returns the index of the last occurrence of the element otherwise it returns -1. This method is used to find the last occurrence of a particular element in LinkedList.

Syntax:

LinkedList.lastIndexOf(Object element)

Parameters: The parameter element is of the type LinkedList. 

It refers to the element whose last occurrence is required to be checked.

Return Value: The position of the last occurrence of the element in the list otherwise if the element is not present in the list then the method returns -1. The returned value is of integer type.

Example:

Java

// Java Program to Illustrate lastIndexOf() Method
// of LinkedList class

// Importing required classes
import java.io.*;
import java.util.LinkedList;

// Main class
public class GFG {

    // Main driver method
    public static void main(String args[])
    {

        // Creating an empty LinkedList of string type
        LinkedList<String> list = new LinkedList<String>();

        // Adding elements in the list
        // using add() method
        list.add("Geeks");
        list.add("for");
        list.add("Geeks");
        list.add("10");
        list.add("20");

        // Displaying the current elements inside LinkedList
        System.out.println("LinkedList:" + list);

        // The last position of an element is returned
        // using lastIndexOf() method and
        // displaying on the console
        System.out.println(
            "Last occurrence of Geeks is at index: "
            + list.lastIndexOf("Geeks"));
        System.out.println(
            "Last occurrence of 10 is at index: "
            + list.lastIndexOf("10"));
    }
}

Output:

LinkedList:[Geeks, for, Geeks, 10, 20]
Last occurrence of Geeks is at index: 2
Last occurrence of 10 is at index: 3