In this JavaFX GUI tutorial we will learn how to change the PasswordFIeld Mask Character. The JavaFX PasswordField extends the TextFIeld Class. Both the TextFIeld and PasswordField share the same Skin - TextFieldSkin. The TextField Skin Class has a protected instance variable called BULLET that contains the character that is echoed by the PasswordField when the user presses a key. It is this TextField Skin Class that will enable us to change the PasswordField mask character.
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