Linked List Add Node To Tail

LinkedListAddToTail.java

public class LinkedList<T> {
    
    // Reference to the head node
    Node head;
    
    public void addToTail(T data){
        
        // create new node
        Node newNode = new Node(data, null);
        
        // Check if head is null and set new node as head
        if(head == null){
            head = newNode;
            return;
        }
        
        // get head reference
        Node current = head;
        
        // iterate until the last node
        while(current.next != null){
            current = current.next;        
        }
        
        // add new node to the tail
        current.next = newNode;
    }
    
    ...