[debutant] cacher un mot de passe

Bonjour,

J'aimerai que lorsque je saisi un text au clavier l'ecran affiche des '*'
comme pour cacher un mot de passe...

Peut on m'aider????



Merci et bon app...

oui,

javax.swing.JPasswordField

bon courage

mais encore? :wink:

http://java.sun.com/j2se/1.4.2/docs/...wordField.html

Providing a Password Field

Here's the code from PasswordDemo that creates and sets up the password field.

Code:

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JPasswordField passwordField = new JPasswordField(10); passwordField.setEchoChar('#'); passwordField.addActionListener(new ActionListener() { ... });

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As with text fields, the argument passed into the JPasswordField constructor indicates that the field should be 10 columns wide. By default a password field displays an asterisk '*' for each character typed. The call to setEchoChar changes it to a pound sign '#'. Finally, the code adds an action listener to the password field, which action-validates the value typed in by the user. Here's the implementation of the action listener's actionPerformed method:

Code:

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public void actionPerformed(ActionEvent e) { JPasswordField input = (JPasswordField)e.getSource(); char[] password = input.getPassword(); if (isPasswordCorrect(password)) { JOptionPane.showMessageDialog(f, "Success! You typed the right password."); } else { JOptionPane.showMessageDialog(f, "Invalid password. Try again.", "Error Message", JOptionPane.ERROR_MESSAGE); } }

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The getPassword returns a character array. Password information should not be stored or passed around in strings because strings are not secure.
A program using a password field typically validates the password before completing any actions requiring the password. This program calls a private method, isPasswordCorrect, that compares the value returned by getPassword to a value stored in a character array.



ET VOILA

:D

Merci a tous...