Java: Insert the specified element at the front of a linked list

Last update on May 22 2025 13:14:44 (UTC/GMT +8 hours)

7. Insert at Front

Write a Java program to insert the specified element at the front of a linked list.

Sample Solution:-

Java Code:

import java.util.LinkedList;
  public class Exercise7 {
  public static void main(String[] args) {
   // create an empty linked list
     LinkedList<String> l_list = new LinkedList<String>();
   // use add() method to add values in the linked list
          l_list.add("Red");
          l_list.add("Green");
          l_list.add("Black");
     System.out.println("Original linked list:" + l_list);    
  // Add an element to front of LinkedList
     l_list.offerFirst("Pink");
     System.out.println("Final linked list:" + l_list);  
 }	
}

Sample Output:

Original linked list:[Red, Green, Black]                               
Final linked list:[Pink, Red, Green, Black]

Pictorial Presentation:

Flowchart:

For more Practice: Solve these Related Problems:

• Write a Java program to insert an element at the front of a linked list and then shift existing elements accordingly.
• Write a Java program to insert an element at the front using a dummy head node and then remove the dummy afterward.
• Write a Java program to implement a method that prepends an element and returns the new head of the linked list.
• Write a Java program to use recursion to add an element at the beginning of a linked list and then print the list.

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