Your Swing menu is now integrated with your legacy application. You have solved the window management issues, and you can call back your legacy application from the Java code.

Which is better for your next Java GUI project: Java Swing vs. JavaFX? This tip explores their history and capabilities to help you choose the right one.

For new Java programmers, the JOptionPane class is a great visual and user-friendly introduction to user input and Swing-based programming. Here's how to get started.