diff --git a/algorithms-and-data-structures/src/main/java/com/xtenzq/linkedlist/utils/ListNode.java b/algorithms-and-data-structures/src/main/java/com/xtenzq/linkedlist/utils/ListNode.java
new file mode 100644
index 0000000..15602c4
--- /dev/null
+++ b/algorithms-and-data-structures/src/main/java/com/xtenzq/linkedlist/utils/ListNode.java
@@ -0,0 +1,59 @@
+package com.xtenzq.linkedlist.utils;
+
+import java.util.Objects;
+
+public class ListNode {
+    public int val;
+    public ListNode next;
+
+    ListNode() {
+    }
+
+    ListNode(int val) {
+        this.val = val;
+    }
+
+    ListNode(int val, ListNode next) {
+        this.val = val;
+        this.next = next;
+    }
+
+    public static ListNode buildLinkedList(int...nums) {
+        if (nums == null || nums.length == 0) {
+            return null;
+        }
+        ListNode head = new ListNode(nums[0]);
+        ListNode current = head;
+        for (int i = 1; i < nums.length; i++) {
+            current.next = new ListNode(nums[i]);
+            current = current.next;
+        }
+        return head;
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (this == obj) {
+            return true;
+        }
+        if (obj == null || getClass() != obj.getClass()) {
+            return false;
+        }
+        ListNode other = (ListNode) obj;
+        return val == other.val && (Objects.equals(next, other.next));
+    }
+
+    @Override
+    public String toString() {
+        StringBuilder sb = new StringBuilder();
+        ListNode current = this;
+        while (current != null) {
+            sb.append(current.val);
+            if (current.next != null) {
+                sb.append(" -> ");
+            }
+            current = current.next;
+        }
+        return sb.toString();
+    }
+}