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Tip of the Day
Language: User Interface Design
Expertise: Beginner
Sep 28, 1999



Application Security Testing: An Integral Part of DevOps


When creating an input dialog box with JOptionPane.showInputDialog, is it possible to have a masking character, such as the * for password input?

As implemented in the Sun JDK, JOptionPane.showInputDialog uses a JTextField to collect user input. Therefore, it is not possible to set a masking character. There is no reason why JOptionPane could not be implemented to use a JPasswordField, but it would seem the designer of the class did not anticipate that need. JOptionPane is a convenience class, making it easy to create several of the most commonly used option dialogs. It is up to you to implement your own dialogs for the cases that it does not cover.

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