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 classesimport java.io.*;import java.util.LinkedList; // Main classpublic 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")); }} |
LinkedList:[Geeks, for, Geeks, 10, 20] Last occurrence of Geeks is at index: 2 Last occurrence of 10 is at index: 3
