diff --git a/chang086/19294870.java b/chang086/19294870.java
new file mode 100644
index 0000000000000000000000000000000000000000..cdabc2e0876ad629e41ff055727cf3af34be8917
--- /dev/null
+++ b/chang086/19294870.java
@@ -0,0 +1,20 @@
+/**
+ * 冒泡排序函数
+ * aa bb cc
+ * @param a 待排序的数组
+ * @param n 待排序的数组长度
+ */
+public static void bubbleSort(int [] a, int n){
+    // 你的代码，使无序数组 a 变得有序
+   for (int i = 0; i < n; i++) {
+            for (int j = i + 1; j < n; j++) {
+                if (a[i] > a[j]) {
+                    int temp = a[j];
+                    a[j] = a[i];
+                    a[i] = temp;
+
+                }
+            }
+        }
+
+} //end
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