diff --git a/codes/wangtiaoke/20510324.java b/codes/wangtiaoke/20510324.java
new file mode 100644
index 0000000000000000000000000000000000000000..296f54517791e75657a43f7c40aa58f92cbd6c84
--- /dev/null
+++ b/codes/wangtiaoke/20510324.java
@@ -0,0 +1,11 @@
+public static void bubbleSort(int[] a, int n) {
+	for (int j = n - 1; j > 0; j--) {
+		for (int i = 0; i < j; i++) {
+			if (a[i] > a[i + 1]) {
+				int temp = a[i];
+				a[i] = a[i + 1 ];
+				a[i + 1] = temp;
+			}
+		}
+	}
+}