IntelliJ IDEA does not run class

Question

Short note beforehand: saw questions( IntelliJ IDEA running the wrong class and IntelliJ IDEA not correct Run java project) answered but they didn't help.

After starting a new class(in this case CaesarCipher) and typing the code there is no option to run it.

After I press right-click on it in the source folder on the left, there is no option to run.

And in the toolbar, it is not possible to choose the class.

I'm apologizing in case I overviewed the solution.

Your class needs a `public static void main(String[] args) { ... }` method. See [Java `main` Method](https://www.baeldung.com/java-main-method) — Jesper, Jan 27 '20 at 11:41
your class is incomplete and doesn't contain an entry point, which is the very minimum in order to be able to run a class. If this puzzles you, you might want to consider stop using professional IDE's. — Stultuske, Jan 27 '20 at 11:43
Thank you for the hints. Understood and implemented the suggestions. Started out last week, so there is lot of place for improvement. — Draz, Jan 27 '20 at 13:55

score 1 · Accepted Answer · answered Jan 27 '20 at 12:00

First of all, You should remove the enlisted errors on stacktrace from your test.java class.

I can see the class you created CaesarCipher.java doesn't have any public static void main(String[] args) method.

In order to run class you need to put in your main class.

public static void main(String[] args){

}

or you can reference your sub class in to main class like this:

public class Main{

    public static void main(String[] args){
         CaesarCipher caesarCipher = new CaesarCipher();
         CaesarCipher.caesarify("encrypt", shift); //put your real params values
    }
}

Hope this helps. Don't forgot to mark solution as accepted.

IntelliJ IDEA does not run class

1 Answers1