diff --git a/src/main/java/com/zeekling/integer/TestDemoCount.java b/src/main/java/com/zeekling/integer/TestDemoCount.java
new file mode 100644
index 0000000..e3d2cb8
--- /dev/null
+++ b/src/main/java/com/zeekling/integer/TestDemoCount.java
@@ -0,0 +1,17 @@
+package com.zeekling.integer;
+
+public class TestDemoCount {
+
+    private int count;
+    public static void main(String[] args) {
+        TestDemoCount test=new TestDemoCount(88);
+        System.out.println(test.count);
+
+        int i = 5;
+        int j = 10;
+        System.out.println(i + ~j);
+    }
+    TestDemoCount(int a) {
+        count=a;
+    }
+}