Java: network settings window

I'm looking for a way to program textfields with dots like the one from Windows network settings dialog:

see >> http://i.stack.imgur.com/gayeY.jpg

Is there any开发者_开发问答 ready-to-use example on the net? - unfortunately I didn't find anything.

Thanks a lot for your help!

-patrick

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As previously discussed on Stack Overflow (see How do I set the value of a JFormattedTextField with a placeholder character?), you can't easily use the JFormattedTextField to input IP addresses. However, there is also the RegexFormatter from Sun (see http://java.sun.com/products/jfc/tsc/articles/reftf/; download the source code at http://java.sun.com/products/jfc/tsc/articles/reftf/RegexFormatter.java) which you can use like this:

   JFormattedTextField ipAddress;
   try{
    RegexFormatter ipmask = new RegexFormatter("\\d{0,3}\\.\\d{0,3}\\.\\d{0,3}\\.\\d{0,3}");
        ipmask.setOverwriteMode(false);
    ipAddress = new JFormattedTextField(ipmask);
}catch(Exception e1){
}
ipAddress.setValue("255.255.255.255");

This will let you enter/edit the value and preserve the dots in the output.

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With the help of a simple google search i found JFormattedTextField, here's an example on how to use it.

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IP-address example:

public static void main(String args[]) throws ParseException  
{ 
    JFrame frame = new JFrame("Test");

    JTextField f = new JFormattedTextField(new MaskFormatter("###.###.###.###"));
    f.setFont(new Font("Monospaced", Font.PLAIN, 10));
    frame.add(f);

    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(100, 50);
    frame.setVisible(true);
}