I really liked your book and plan to use it when I need to teach people how to code, so thanks a ton. > Fixing Mechanical issues I tried running `*.java` file

I really liked your book and plan to use it when I need to teach people how to code, so thanks a ton. > Fixing Mechanical issues I tried running `*.java` files without classes (so just `void main`) and I got this error: ``` Hello.java:1: error: class, interface, or enum expected void main() { ^ ``` > Be a template It's a great one. Thank you!