Question

在此链接列表中，循环仅显示前两个数字（67,175）。如何使用LinkedList的所有元素并全部打印出来？该代码在哪里出错？

public class LinkedList {
    private Node head;

    public void insert(int data) {
        Node direction = new Node(data);
        direction.next = null;
        if (head == null) {
            head = direction;
        } else {
            Node following = head;
            while (following.next == null) {
                following.next = direction;
            }
        }
    }

    public void print() {
        Node direction = head;
        while (direction != null) {
            System.out.println(direction.data);
            direction = direction.next;
        }
    }
}

Answer 1

您的insert方法不正确。这个

Node following = head; 
while (following.next == null) {
    following.next = direction;
}

应该类似于

Node following = head;
while (following.next != null) {
    following = following.next;
}
following.next = direction;

您当前的方法仅支持两个节点。您需要先跟随列表的末尾，然后追加新的Node。

如何显示LinkedList的所有元素？

1 个答案: