diff --git a/codes/guzy/IK2IEV.java b/codes/guzy/IK2IEV.java
new file mode 100644
index 0000000000000000000000000000000000000000..c7fcc0c92737686c2c5a2e46f84403a126b033b1
--- /dev/null
+++ b/codes/guzy/IK2IEV.java
@@ -0,0 +1,30 @@
+public class IK2IEV {
+    public static void bubbleSort(int[] arr) {
+        if (arr == null || arr.length <= 1) {
+            return;
+        }
+        int len = arr.length;
+        for (int i = 0; i < len - 1; i++) {
+            boolean swapFlag = false;
+            for (int j = 0; j < len - 1 - i; j++) {
+                if (arr[j] > arr[j+1]) {
+                    int temp = arr[j];
+                    arr[j] = arr[j+1];
+                    arr[j+1] = temp;
+                    swapFlag = true;
+                }
+            }
+            if (!swapFlag) break;
+        }
+    }
+    public static void main(String[] args) {
+        int[] testArr = {6, 2, 9, 1, 5, 3};
+        System.out.println("排序前：");
+        for(int num : testArr) System.out.print(num + " ");
+        
+        bubbleSort(testArr);
+        
+        System.out.println("排序后：");
+        for(int num : testArr) System.out.print(num + " ");
+    }
+}
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