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JOptionPane to request password

steeks asked
Medium Priority
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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Try the following code snippet:

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

    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!

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!


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

    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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