What is the way to validate user input for number of seats obtained via a JOptionPane.showInputDialog ? I want to validate that user has entered only numeric. Do I have to write my own class that is a subclass of JDialog ?
Devu Shah
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Joined: Jun 21, 2001
Posts: 50
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hi rasika, you can use the while loop i.e u get the user input and check whether it is numeric by catching the number format exception and if not than agian show the optionpane.
Originally posted by Rasika Chitnis: What is the way to validate user input for number of seats obtained via a JOptionPane.showInputDialog ? I want to validate that user has entered only numeric. Do I have to write my own class that is a subclass of JDialog ?
Rasika Chitnis
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Joined: Jun 19, 2001
Posts: 131
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Devu, Thanks. Yes, I already did that. But my validation code executes after user closes the dialog box. I want to do validation and display error message to user when the user clicks 'OK' button on the dialog box, but prevent the first dialog box from closing.
Narayan Veeramani
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Joined: Jun 06, 2001
Posts: 25
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One approach is to extend JTextField and create your own MaskEdit Field which only accepts numeric values. For this you will need to override createDefaultModel() method & return your own Document object.
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