singly linked list in java

class Node {
    int data;
    Node next;

    public Node(int data) {
        this.data = data;
        this.next = null;
    }
}

class SinglyLinkedList {
    private Node head;

    // Method to append a new node to the end of the list
    public void append(int data) {
        Node newNode = new Node(data);
        if (head == null) {
            head = newNode;
        } else {
            Node current = head;
            while (current.next != null) {
                current = current.next;
            }
            current.next = newNode;
        }
    }

    // Method to prepend a new node to the beginning of the list
    public void prepend(int data) {
        Node newNode = new Node(data);
        newNode.next = head;
        head = newNode;
    }

    // Method to delete a node with a given value
    public void delete(int data) {
        if (head == null) {
            return;
        }
        if (head.data == data) {
            head = head.next;
            return;
        }
        Node current = head;
        while (current.next != null) {
            if (current.next.data == data) {
                current.next = current.next.next;
                return;
            }
            current = current.next;
        }
    }

    // Method to display the linked list
    public void display() {
        Node current = head;
        while (current != null) {
            System.out.print(current.data + " -> ");
            current = current.next;
        }
        System.out.println("null");
    }
}

public class SinglyLinkedListExample {
    public static void main(String[] args) {
        SinglyLinkedList sll = new SinglyLinkedList();
        sll.append(1);
        sll.append(2);
        sll.append(3);

        System.out.println("Singly Linked List:");
        sll.display();

        sll.prepend(0);
        System.out.println("Singly Linked List after prepending 0:");
        sll.display();

        sll.delete(2);
        System.out.println("Singly Linked List after deleting 2:");
        sll.display();
    }
}