Reverse single linked list __ Reverse single linked list

one, reverse single linked list

Reverse single Chain table class ListNode {int val;

    ListNode next = null;
    ListNode (int val) {this.val = val;
       } public class Solution {public ListNode reverselist (ListNode head) {ListNode rehead=null;
           while (head!=null) {ListNode tmp=head;
           Head=head.next;
           Tmp.next=rehead;
           rehead=tmp;

       System.out.println (Rehead.val);
    return rehead; }//Print single list public void Printlist (ListNode head) {while (head!=null) {System.out.print
             (head.val+ "");
        Head=head.next;
    } System.out.println ();
        public static void Main (String[]args) {//system.out.println ("Hello");
         ListNode head=new ListNode (1);
         Head.next=new ListNode (2);
         Head.next.next=new ListNode (3);
         Solution s=new Solution ();
         S.printlist (head);

    S.printlist (head) (s.reverselist); }
}