Java: Replace an element in a linked list

Last update on May 22 2025 13:14:35 (UTC/GMT +8 hours)

26. Replace Element in LinkedList

Write a Java program to replace an element in a linked list.

Sample Solution:-

Java Code:

import java.util.LinkedList;
import java.util.Collections;
  public class Exercise18 {
  public static void main(String[] args) {
          LinkedList<String> c1= new LinkedList<String>();
          c1.add("Red");
          c1.add("Green");
          c1.add("Black");
          c1.add("White");
          c1.add("Pink");
          System.out.println("Original linked list: " + c1);
          // Replacing 2nd element with new value
          c1.set(1, "Orange");
          System.out.println("The value of second element changed.");
          System.out.println("New linked list: " + c1);
   }
}

Sample Output:

Original linked list: [Red, Green, Black, White, Pink]                 
The value of second element changed.                                   
New linked list: [Red, Orange, Black, White, Pink] 

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to replace an element at a given index in a linked list and then print the modified list.
• Write a Java program to search for a specific element in a linked list and replace it with another element.
• Write a Java program to use Java streams to map over a linked list and replace all occurrences of a specified value.
• Write a Java program to implement a recursive function that replaces an element in a linked list and returns the updated list.

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