java/LeetCode/src/DeleteNodeLinkedList.java at master · xiaobo-coder/java

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public class DeleteNodeLinkedList {

public static void main(String[] args) {

ListNode n0 = new ListNode(10);

ListNode n1 = new ListNode(11);

ListNode n2 = new ListNode(12);

ListNode n3 = new ListNode(13);

n0.next = n1;

n1.next = n2;

n2.next = n3;

System.out.println("val before delete in main " + n2.val);

deleteNode(n2);

System.out.println("val after delete in main " + n2.val);

}

public static void deleteNode(ListNode node) {

if (node == null) {

return;

}

// the last node

if (node.next == null) {

node = null;

}

System.out.println("val before assignment in deleteNode " + node.val);

node.val = node.next.val;

System.out.println("val after assignment in deleteNode " + node.val);

// node.val = node.next.val;

// node.next = node.next.next;

}

class ListNode {

int val;

ListNode next;

ListNode(int x) {

val = x;

}

// @Override

// public String toString() {

// return " -->ListNode " + val + " -->";

// }

}