如何在自定义链表的内部类中调用外部类中的方法？

public class LinkedList {
    private Node head;

    public void printList() {
        Node current = head;
        while (current != null) {
            System.out.print(current.data + " ");
            current = current.next;
        }
    }

    private class Node {
        private int data;
        private Node next;

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

        public void doSomething() {
            LinkedList list = new LinkedList();
            list.printList(); // 调用外部类的方法
        }
    }
}