InputVerifier « JTextField « Java Swing Q&A

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  3. InputVerifier




1. Revert jTextField to last good value    stackoverflow.com

I have an InputVerifier for a jTextField to check and see if the input from the user is an integer. If it is not, I want to revert it to ...

2. temporarily disable ok button on a JDialog, accordingly to a JTextField validation    stackoverflow.com

I have a JDialog created in a fashion like this, accordingly to Oracle's tutorial. using the JOptionPane constructor: 

optionPane = new JOptionPane(array,
        ...

3. JTextField InputVerifier    coderanch.com

public boolean verifyInputJawad(String content){ boolean returnValue = true; if (content.length() != 0) { try { Double.parseDouble(content); Double value = new Double(content); if(value.doubleValue() <= 0){ JOptionPane.showConfirmDialog(this, "Please enter a number greater than 0", "Enter Number", JOptionPane.CLOSED_OPTION); returnValue = false; } } catch (NumberFormatException e) { JOptionPane.showMessageDialog(this, "Please enter a number greater than 0"); System.out.println("Please Enter a valid number"); returnValue = false; } ...