security password

[francis sumaylo]

guys, is there anyone knows how to make sa secure input. example: you entered password you type "Password: Hello" but it will be shown as "Password: **** ".

[Rob Spoor]

In Swing check out JPasswordField.
On the console check out java.io.Console and its readPassword methods. Those will not show *s but nothing at all.

[francis sumaylo]

thank you... is there easiest way? im just making a simple program with JOptionPane.showInputDialog(.....

[fred rosenberger]

I would think the way Rob suggested IS the easiest way.

[Rob Spoor]

JOptionPane can take complete JComponents as its message. You would need a bit more work, but it would still be quite easy:

JPasswordField pw = new JPasswordField(20);
Object[] message = {"Enter your password:", pw};
int answer = JOptionPane.showConfirmDialog(parent, message, title, JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE);
if (answer == JOptionPane.OK_OPTION)
{
    char[] pass = pw.getPassword();
    // use it
}