Merge pull request '[feat]:[添加java测试代码]' (#14) from yinzy_dev into main

Reviewed-on: jk_yinzy/adsfasdfsadf#14

src/main/java/com/example/App.java

@@ -0,0 +1,8 @@
+package com.example;
+
+public class App {
+    public static void main(String[] args) {
+        System.out.println("Hello, World!");
+    }
+}
+