diff --git a/codes/wang-yaru01/.keep b/codes/wang-yaru01/.keep
new file mode 100644
index 0000000000000000000000000000000000000000..e69de29bb2d1d6434b8b29ae775ad8c2e48c5391
diff --git a/codes/wang-yaru01/I5RFOP.java b/codes/wang-yaru01/I5RFOP.java
new file mode 100644
index 0000000000000000000000000000000000000000..55e6e71e652539a69242100d189d2519d96eafe9
--- /dev/null
+++ b/codes/wang-yaru01/I5RFOP.java
@@ -0,0 +1,22 @@
+public static void main(String[] args) {
+    int[] array = 10,5,3,7,6};
+    myBubblesort(array);
+    System.out.println(Arrays.toString(array));
+}
+public static void myBubblesort(int[] array){
+    for (int i = 0; i < array.length-1; i++) {
+        boolean flg = false;
+        for (int j = 0; j < array.length-1-i; j++) {
+            if(array[j] > array[j+1]){
+                int tmp = 0;
+                tmp = array[j];
+                array[j] = array[j+1];
+                array[j+1] = tmp;
+                flg = true;
+            }
+        }
+        if(flg == false){
+            return;
+        }
+    }
+}
\ No newline at end of file