add dart chapter_array_and_linkedlist (#338)

* add dart chapter_array_and_linkedlist * update my_list.dart * update chapter_array_and_linkedlist * Update my_list.dart * Update array.dart --------- Co-authored-by: huangjianqing <huangjianqing@52tt.com> Co-authored-by: Yudong Jin <krahets@163.com>
2026-07-26 13:06:07 +00:00 · 2023-02-07 21:24:27 +08:00
parent 1cc9cecebe
commit 7f4efa6d5e
6 changed files with 424 additions and 0 deletions
@@ -0,0 +1,20 @@
+/**
+ * File: ListNode
+ * Created Time: 2023-01-23
+ * Author: Jefferson (JeffersonHuang77@gmail.com)
+ */
+
+/**
+ * Definition for a singly-linked list node
+ */
+class ListNode {
+  int val;
+  ListNode? next;
+
+  ListNode(this.val, [this.next]);
+
+  @override
+  String toString() {
+    return 'ListNode{val: $val, next: $next}';
+  }
+}
@@ -0,0 +1,21 @@
+/**
+ * File: PrintUtil
+ * Created Time: 2023-01-23
+ * Author: Jefferson (JeffersonHuang77@gmail.com)
+ */
+
+import 'ListNode.dart';
+
+class PrintUtil {
+    
+  void printLinkedList(ListNode? head) {
+    List<String> list = [];
+
+    while (head != null) {
+      list.add('${head.val}');
+      head = head.next;
+    }
+
+    print(list.join(' -> '));
+  }
+}