I am about to refactor a Swing application from using ActionListeners to Action classes because I realized that a lot of my menu items are going to be used in a toolbar as well.
Problems: I am unable to get the values of the JTextFields or the rollResultTotal to update. Even if the data in the JTextFields are valid, a NumberFormatException is still thrown.
I开发者_如何转开发 am refactoring some code for an assignment - currently the view has lots of buttons and menus and one action listener which decides what to do by using event.getSource(). From what
So i have made a simple program with a basic menu at the top of the frame, Now i just need to put actions behind each JMenuItem. Im struggling to work the code out though, Here is what i thought would
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