Java: Clone an linked list to another linked list

Last update on May 22 2025 13:15:57 (UTC/GMT +8 hours)

18. Copy LinkedList

Write a Java program to copy a linked list to another linked list.

Sample Solution:-

Java Code:

import java.util.*;
public class Exercise18 {
 public static void main(String[] args) {
  // create an empty linked list
  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);
           LinkedList <String> newc1 = new LinkedList <String> ();
                newc1 = (LinkedList)c1.clone();
          System.out.println("Cloned linked list: " + newc1);       
}
}

Sample Output:

Note: Exercise18.java uses unchecked or unsafe operations.             
Note: Recompile with -Xlint:unchecked for details.                     
Original linked  list: [Red, Green, Black, White, Pink]                
Cloned linked list: [Red, Green, Black, White, Pink]

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to create a deep copy of a linked list using iteration.
• Write a Java program to implement a recursive function to clone a linked list and return the new list.
• Write a Java program to copy a linked list and then reverse the copy without altering the original list.
• Write a Java program to use Java streams to convert a linked list into a new linked list.

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