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java Programming Glossary: documentfilterRestricting JTextField input to Integers http://stackoverflow.com/questions/11093326/restricting-jtextfield-input-to-integers The solution has been described many times on SO Use a DocumentFilter . There are several examples of this on this site some written.. Also for tutorial help please look at Implementing a DocumentFilter . Edit For instance import javax.swing.JOptionPane import javax.swing.JPanel.. import javax.swing.text.Document import javax.swing.text.DocumentFilter import javax.swing.text.PlainDocument public class DocFilter..
Is there any way to accept only numeric values in a JTextField? http://stackoverflow.com/questions/1313390/is-there-any-way-to-accept-only-numeric-values-in-a-jtextfield input that just removing that automatically with e.g. a DocumentFilter . I would suspect a bug when a type a character in a text field.. which is only enabled when the input is valid aha eat that DocumentFilter solution . It also shows a JTextArea in which the value is printed..
Detecting JTextField “deselect” event http://stackoverflow.com/questions/14305921/detecting-jtextfield-deselect-event tailored made for validating restricting user input DocumentFilter . See here and this variation for an example. InputVerifier..
How to implement in Java ( JTextField class ) to allow entering only digits? http://stackoverflow.com/questions/5662651/how-to-implement-in-java-jtextfield-class-to-allow-entering-only-digits swing jtextfield share improve this question Add a DocumentFilter to the Plain Document used in the JTextField to avoid non digits... non digits. PlainDocument doc new PlainDocument doc.setDocumentFilter new DocumentFilter @Override public void insertString FilterBypass.. doc new PlainDocument doc.setDocumentFilter new DocumentFilter @Override public void insertString FilterBypass fb int off String..
Only allowing numbers and a symbol (-) to be typed into a JTextField http://stackoverflow.com/questions/8017811/only-allowing-numbers-and-a-symbol-to-be-typed-into-a-jtextfield documentfilter share improve this question Use DocumentFilter NumberOnlyFilter.java import javax.swing. import javax.swing.text... java.util.regex. public class NumberOnlyFilter extends DocumentFilter public void insertString DocumentFilter.FilterBypass fb int.. extends DocumentFilter public void insertString DocumentFilter.FilterBypass fb int offset String text AttributeSet attr throws..
Using DocumentFilter.FilterBypass http://stackoverflow.com/questions/9345750/using-documentfilter-filterbypass DocumentFilter.FilterBypass I want to have a method like this on my DocumentFilter.. I want to have a method like this on my DocumentFilter public void replaceUpdate int offset int length String text.. FilterBypass byPass @Override public void insertString DocumentFilter.FilterBypass fb int offset String string AttributeSet att throws..
http://stackoverflow.com/questions/9429459/get-a-key-from-jtextarea sings whitespace chars or word s you have to implements DocumentFilter notice for Chars reservated by programing language s you have.. true AbstractDocument textArea.getDocument .setDocumentFilter new DocumentFilter @Override public void insertString FilterBypass.. textArea.getDocument .setDocumentFilter new DocumentFilter @Override public void insertString FilterBypass fb int offset..
How to allow introducing only digits in jTextField? [duplicate] http://stackoverflow.com/questions/9477354/how-to-allow-introducing-only-digits-in-jtextfield that's how you allow only digits in JTextField by using DocumentFilter as the most effeciive way import java.awt. import javax.swing... import javax.swing.text.DocumentFilter import javax.swing.text.DocumentFilter.FilterBypass public class.. javax.swing.text.DocumentFilter import javax.swing.text.DocumentFilter.FilterBypass public class InputInteger private JTextField tField..
Make JSpinner only read numbers but also detect backspace http://stackoverflow.com/questions/9778958/make-jspinner-only-read-numbers-but-also-detect-backspace correctly implemented to JSpinner you have implements DocumentFilter for filtering of un_wanted Chars typed from keyboad or pasted.. JSpinner jspinner makeDigitsOnlySpinnerUsingDocumentFilter frame.getContentPane .add jspinner BorderLayout.CENTER frame.getContentPane.. return spinner private JSpinner makeDigitsOnlySpinnerUsingDocumentFilter JSpinner spinner new JSpinner new SpinnerNumberModel 0 0 20..
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