Document « JTextField « Java Swing Q&A

1. Document filter is not working in Java?    stackoverflow.com

In text field more than 10 characters na, it has to show an error. For that i used document filter:

JTextField field = (JTextField) txtFld;
AbstractDocument document = (AbstractDocument) field.getDocument();
document.setDocumentFilter(new DocumentSizeAndUppercaseFilter(10));

2. Java Desktop Application : Setting Document property to JTextField does not work    forums.netbeans.org

I've been trying out to use Netbeans Java Desktop Application project template. I'm using a simple database with one table to see how things will work. Table structure : id(int), name(varchar), ...

3. Limited Document JTextField    coderanch.com