class JavaSLL {

public Node head;

public JavaSLL() {

this.head = null;

}

public JavaSLL(int value) {

this.head = new Node(value);

}

public void add(int value) {

Node newNode = new Node(value);

if(this.head == null){

this.head = newNode;

} else{

Node current = head;

while(current.next != null){

current = current.next;

}

current.next = newNode;

}

}

public void remove() {

if(this.head.next == null){

this.head = null;

} else{

Node current = this.head;

int counter = 1;

while(current.next != null){

current = current.next;

}

current = null;

}

}

public void printValues() {

if(this.head == null){

System.out.println("No nodes in this list!");

} else{

Node current = this.head;

int counter = 1;

while(current != null) {

System.out.println("Node " + counter + ": " + current.val);

counter ++;

current = current.next;

}

}

}

}