diff --git a/DQdanqing/16462521.java b/DQdanqing/16462521.java
new file mode 100644
index 0000000000000000000000000000000000000000..0f659cbc2c7e11575eea473768719e000ec6ae3e
--- /dev/null
+++ b/DQdanqing/16462521.java
@@ -0,0 +1,28 @@
+public class BubbleSort {
+    public static void main(String[] args) {
+        int[] arr = {64, 34, 25, 12, 22, 11, 90};
+        bubbleSort(arr);
+        System.out.println("Sorted array");
+        printArray(arr);
+    }
+
+    // 冒泡排序函数
+    static void bubbleSort(int arr[]) {
+        int n = arr.length;
+        for (int i = 0; i < n-1; i++)
+            for (int j = 0; j < n-i-1; j++)
+                if (arr[j] > arr[j+1]) {
+                    // 交换 arr[j+1] 和 arr[j]
+                    int temp = arr[j];
+                    arr[j] = arr[j+1];
+                    arr[j+1] = temp;
+                }
+    }
+
+    // 打印数组的函数
+    static void printArray(int arr[]) {
+        for (int i=0; i < arr.length; i++)
+            System.out.print(arr[i] + " ");
+        System.out.println();
+    }
+}