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    <p>I would create a custom-built modal JDialog for this. You could use DocumentListeners that are added to your text components to enable and disable the JButtons on the dialog.</p> <hr> <p><strong>Edit</strong><br> You state:</p> <blockquote> <p>hummm, in the way it is, can a create a KeyListenner to the textfields to check if the typed is number??? if its number, make the OK button visibile, but how can i access the button? its not a Jbutton</p> </blockquote> <p>It <strong><em>is</em></strong> a JButton if you follow my suggestions above and make your own JDialog and don't use a JOptionPane. And no, you should almost never use a KeyListener with Swing applications. If you want to verify the input, use a JFormattedTextField or a DocumentFilter or an InputVerifier.</p> <hr> <p><strong>Edit 2</strong><br> You state: </p> <blockquote> <p>hummm, understand, i will read something about creating a modal Jdialog, thannk you :) this will work like "Jframe" isnt it? so i i will add components to it and will be possible to get Components events, property etc..</p> </blockquote> <p>A JDialog is similar to a JFrame in that it's a top-level window, and like a JFrame you would load up a JPanel with all the components that it will display, then add the JPanel to the JDialog's contentPane, <code>pack()</code> it and set it visible, but it's different from a JFrame in that its constructors are different. You will need to pass in the parent window (here the main JFrame), a String title and a Dialog.ModalityType, likely APPLICATION_MODAL. Like a JOptionPane, once you set it to visible, all code from the calling code halts and waits for the dialog to no longer be visible prior to resuming.</p>
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    1. POJoptionPane, to not allow empty text
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    1. COhummm, in the way it is, can a create a KeyListenner to the textfields to check if the typed is number??? if its number, make the OK button visibile, but how can i access the button? its not a Jbutton :|
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    2. CO@user2582318: Please see edit to answer.
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    3. COhummm, understand, i will read something about creating a modal Jdialog, thannk you :) this will work like "Jframe" isnt it? so i i will add components to it and will be possible to get Components events, property etc..
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