java反转单链表

public class ReserveList {
    public static NodeTest reserve(NodeTest node){
        if(node.next==null){
            return node;
        }
        NodeTest next=node.next;
        node.next=null;
        NodeTest re=reserve(next);
        next.next=node;
        return  re;
    }

    public static void main(String[] args) {

        NodeTest nodeTest=new NodeTest(1,null);
        NodeTest nodeTest1=new NodeTest(2,nodeTest);
        NodeTest nodeTest2=new NodeTest(3,nodeTest1);
        NodeTest nodeTest3=new NodeTest(4,nodeTest2);
        NodeTest nodeTest4=new NodeTest(5,nodeTest3);
        NodeTest reserve = reserve(nodeTest4);
        while (reserve!=null){
            System.out.println(reserve.index);
            reserve=reserve.next;
        }

    }
}


public class NodeTest {
     int index;
    NodeTest next;

     public NodeTest(int index, NodeTest next) {
       this.index = index;
       this.next = next;
     }
   }