Program It Yourself in Java [Intermediate] - 1 - Introduction to GUI

[Dacommenta]

Made it through the basics! Woop Woop.

[JavitoSerna]

Me gustaría que hicieses tutoriales de Java en español. Un saludo.

[Mariomm_marti]

Your code is not bad at all, the problem comes when you disrespect the Java conventions (such as don't line break until the { ).
Also, I don't understand why you don't define the JFrame as final, as it don't get any other value :P

I'm new on this channel and I come from JavaDevOne, thanks for the tutorial :P