LinkedList lastIndexOf() Method in Java

Last Updated : 17 Dec, 2024

In Java, the lastIndexOf() method of LinkedList is used to find the last occurrence of the specified element in the list. If the element is present it will return the last occurrence of the element, otherwise, it will return -1.

Syntax of LinkedList lastIndexOf() Method

public int lastIndexOf(Object o);

Return type:

If the element is present then the index of the last occurrence of the element is returned
If the element is not present it will return -1.

Example: Here, we use lastIndexOf() method to return the last occurrence of the specified element in the list.

Java

// Java Program to demonstrate the  // use of lastIndexOf()  import java.util.LinkedList; public class Geeks {      public static void main(String args[]) {          // Creating an empty LinkedList         LinkedList<Integer> l = new LinkedList<Integer>();          // Use add() to insert          // elements in the list         l.add(10);         l.add(20);         l.add(30);         l.add(40);         l.add(20);         l.add(40);          // Displaying the LinkedList         System.out.println("" + l);          // Use lastIndexOf() to return the last occurence of         // the specified element in the LinkedList         System.out.println(             "Last occurrence of 30 is at index: "             + l.lastIndexOf(30));         System.out.println(             "Last occurrence of 40 is at index: "             + l.lastIndexOf(40));     } }

Output

[10, 20, 30, 40, 20, 40] Last occurrence of 30 is at index: 2 Last occurrence of 40 is at index: 5

LinkedList lastIndexOf() Method in Java

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