class Node {
    String data = null; //链表存储的数据
    Node next = null; //下一个节点
 
    public Node (String data) {
        this.data = data;
    }
 
    public void setNext(Node next) {
        this.next = next;
    }
 
    public Node getNext() {
        return next;
    }
 
    public String getData() {
        return data;
    }
}

遍历链表
public static void getDataByLoop(Node node){
    while (node != null) {
    System.out.println(node.getData());
    node = node.getNext();
    }
}