CODEWITHSUNDEEP
javaswinguser-interfacejbutton
Babatunde Omodayo
Babatunde Omodayo

Reputation: 9

how do I re-enable a JButton

I have a program that tests numbers if they are prime. I have a basic GUI that contains a textfield and a button called check. Now, I have extended this program by adding a simple GUI number keypad. On the original GUI, I added a new button called keyboard so when pressed, it will open the GUI number keypad and disable the check button. Now my question is how do I re-enable the check button if the GUI number keypad window has been closed? Below is a snippet of my code:

        if (event.getSource()==jbKeyboard) {
            jbCheck.setEnabled(false);    
            KeyboardGui g = new KeyboardGui();
            if (g.equals(DISPOSE_ON_CLOSE)) {
                    jbCheck.setEnabled(true);
            }
         }

but this does not work.

Upvotes: 0

Views: 369

Answers (1)

Youssef G.
Youssef G.

Reputation: 617

You add a WindowListener for the keypad, and in the WindowClosing(WindowEvent e) method, you can do your jbCheck.setEnabled(true);

Not sure what KeyboardGui, but something like this (added after you declare and initialize g):

g.addWindowListener(this);

Then you will need to implement WindowListener and add the appropriate methods.

Here is the Java Tutorial on window Listeners: http://docs.oracle.com/javase/tutorial/uiswing/events/windowlistener.html

Upvotes: 2

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