What is the correct way to pass variables or data between two forms in Java(Swing or JavaFX)?

Question

Java

Googled on this topic, found it in C #, but this will not work with Java. And I'm interested in exactly how to do it right, and not a blunder.

Answer 1

What is the architecture of your program, and only then think about how to do it in your case, there is no one universal solution