Unable to run Java code with Intellij IDEA

Question

I have just downloaded the IDE, and I want to edit my first Java file with it, I\'m not interested in creating a whole project, just editing the single file.

So I op

Answer 1

My classes contained a main() method yet I was unable to see the Run option. That option was enabled once I marked a folder containing my class files as a source folder:

1. Right click the folder containing your source
2. Select Mark Directory as → Test Source Root

Some of the classes in my folder don't have a main() method, but I still see a Run option for those.