In NetBeans I've created a project with many of JTextField's. Now I understand that I should validate it. Is it possible to "cast" text fields to JFormattedTextField's?
From JTextField to JFormattedTextField
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No it's not. At least not directly. The other way around is possible though, given
JFormattedTextFieldextends fromJTextField.Not necessarily but it's highly recommended. On the other hand you can let the class' variables declared as
JTextFieldand initialize them asJFormattedTextFieldthrough custom code:Then you can "safely" downcast them as
JFormattedTextFieldlater. However I'd like to emphasize one more time that it sounds like a dirty workaround. Also note you won't be able to change thesetText(...)code tosetValue(...)which is preferred for formatted text fields.