feat: finish multi lnaguage support

example-project/languages/java-lang.java

@@ -0,0 +1,9 @@
+public class HelloWorld {
+
+    // cc: main function
+    public static void main(String[] args) {
+        // Prints "Hello, World" to the terminal window.
+        System.out.println("Hello, World");
+    }
+
+}