Java - Replace an item in LinkedList

In this tutorial, we'll see how search for an item in a LinkedList and replace it with another new value. In other words, modifying an element to a specific position.

The LinkedList class has the following predefined method:

public E set(index position, E element): replaces the element at a given position with another element.

Example:

import java.util.LinkedList; 
public class Replace {
 
 public static void main(String[] args) {
 
 LinkedList linkedlist = new LinkedList(); 
 
 linkedlist.add("java"); 
 linkedlist.add("C++"); 
 linkedlist.add("C"); 
 linkedlist.add("php"); 
 linkedlist.add("html"); 
 linkedlist.add("C#"); 
 
 // before modification
 System.out.println("Before permutation:"); 
 for(String str: linkedlist){
 System.out.println(str); 
 }
 
 System.out.println("\n"); 
 // permutation of elements 1 and 2
 //temporary variable
 String elm = linkedlist.get(1); 
 linkedlist.set(1, linkedlist.get(2)); 
 linkedlist.set(2, elm); 
 System.out.println("Swap between C and C++\n"); 

 // LinkedList after modification
 System.out.println("After modification:"); 
 for(String elm1: linkedlist){
 System.out.println(elm1); 
 }
 }
}

Output:

Before permutation:
java
C++
C
php
html
C#

Swap between C and C++
 
After modification:
java
C
C++
php
html
C#