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JOptionPane to request password

steeks
steeks asked
on
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Last Modified: 2007-12-19
Just wondering how to use a JOptionPane to request a
password from the user.  Using the ShowInputDialog method works well, except I need to mask the password entered
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Commented:
Try the following code snippet:

JTextField nameField = new JTextField(20);
JPasswordField passField = new JPasswordField(20);
JPanel panel1 = new JPanel();
panel1.add(new JLabel("name"));
panel1.add(nameField);
JPanel panel2 = new JPanel();
panel2.add(new JLabel("password"));
panel2.add(passField);

JOptionPane.showMessageDialog(null,
    new Object[] { "Please enter name and password", panel1, panel2 }
);

Then you can extract the information out of nameField and passField (use getText()).

The trick I am using is:

1. use an object array to structure the JOptionPanel
2. use JPanels to group the "name" label with the JTextfield and "password" with the JPasswordField.

Good luck!

Commented:
If you need more customization (a different JOptionPane symbol, window title or an additional Cancel button), and you don't know, how, just ask me again!

Author

Commented:
This works well, but how do I change the title?
Commented:
Use

JOptionPane.showMessageDialog(null,
    new Object[] { "Please enter name and password", panel1, panel2 },
    "Your window title", JOptionPane.PLAIN_MESSAGE
);

instead. You can read the JOptionPane API doc, too for more details or the "How to make Dialogs" tutorial at: http://java.sun.com/docs/books/tutorial/uiswing/components/dialog.html

Good luck!
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