fixed it for u, nerd

HelloWorld.java

@@ -1,6 +1,20 @@
-/** hello world
- * by vala, because everyone should start somewhere
- * copy as you like, it wont be any good
+/*
+ * Vala Printer
+ *
+ * Copyright (c) 2019 Vala Printer. All Rights Reserved
+ *
+ * Everyone is permitted to copy and distribute verbatim or modified
+ * copies of this license document, and changing it is allowed as
+ * long as the name is changed.
+ *
+ * NO WARRANTY EXPRESS OR IMPLIED
+ */
+
+/**
+ * Prints a hello message to the console.
+ *
+ * @version	1.0 16 Sep 2019
+ * @author	Vala Printer
  */
 
 public class HelloWorld {