Подскажите пожалуйста, где проблема в коде?
package com.javarush.task.pro.task13.task1313;
public class StringLinkedList {
private Node first = new Node();
private Node last = new Node();
public void printAll() {
Node currentElement = first.next;
while ((currentElement != null) && (currentElement != last)) {
System.out.println(currentElement.value);
currentElement = currentElement.next;
}
}
public void add(String value) {
//напишите тут ваш код
Node node = new Node();
node.value = value;
Node lastNode = last.prev;
lastNode.next = node;
node.prev = lastNode;
node.next = last;
last.prev = node;
}
public static class Node {
private Node prev;
private String value;
private Node next;
}
}