Check "my opinion" section. Your older tutorial also covers the same thing.
And, yes, it's trivial. You could show several GUI options in a tutorial, instead of this. And doing it that way is our prefered way. Your posts should cover different technical aspects of that subject. But, you only used "showMessageDialog" and "showInputDialog", and this does not differ from your older tutorial.
Also, Discord is our prefered communication platform. So next time, I would be happy if you use it. Have a nice day :)