diff --git a/device-activation-platform/src/main/java/com/sunyar/cisd/Main.java b/device-activation-platform/src/main/java/com/sunyar/cisd/Main.java
new file mode 100644
index 0000000..22d61ce
--- /dev/null
+++ b/device-activation-platform/src/main/java/com/sunyar/cisd/Main.java
@@ -0,0 +1,17 @@
+package com.sunyar.cisd;
+
+//TIP 要<b>运行</b>代码，请按 <shortcut actionId="Run"/> 或
+// 点击装订区域中的 <icon src="AllIcons.Actions.Execute"/> 图标。
+public class Main {
+    public static void main(String[] args) {
+        //TIP 当文本光标位于高亮显示的文本处时按 <shortcut actionId="ShowIntentionActions"/>
+        // 查看 IntelliJ IDEA 建议如何修正。
+        System.out.printf("Hello and welcome!");
+
+        for (int i = 1; i <= 5; i++) {
+            //TIP 按 <shortcut actionId="Debug"/> 开始调试代码。我们已经设置了一个 <icon src="AllIcons.Debugger.Db_set_breakpoint"/> 断点
+            // 但您始终可以通过按 <shortcut actionId="ToggleLineBreakpoint"/> 添加更多断点。
+            System.out.println("i = " + i);
+        }
+    }
+}
\ No newline at end of file
diff --git a/device-fingerprint-tool/src/main/java/com/sunyard/cisd/Main.java b/device-fingerprint-tool/src/main/java/com/sunyard/cisd/Main.java
new file mode 100644
index 0000000..a5d0b70
--- /dev/null
+++ b/device-fingerprint-tool/src/main/java/com/sunyard/cisd/Main.java
@@ -0,0 +1,6 @@
+package com.sunyard.cisd;
+
+public class Main {
+    public static void main(String[] args) {
+    }
+}
\ No newline at end of file