How to save JFormattedTextField in non-overwrite mode?

Question

I have a problem with JFormattedTextField, namely keeping it in non-overwrite mode. I learned how to set it to non-rewriting, namely using setOverwriteMode (false).

However, although this function allows me to enter a field without overwriting, when the focus is lost and I enter the field again, overWriteMode turns on again!

Is there a way to keep overWriteMode false? I would prefer a solution that does not set it to false every time I lose focus, but if this is the only possible solution, so be it.

This is what I have now:

DefaultFormatter format = new DefaultFormatter(); format.setOverwriteMode(false); inputField = new JFormattedTextField(); inputField.setValue("don't overwrite this!"); inputField.setColumns(20); format.install(inputField);// This does the trick only the first time I enter the field! 

I hope someone can help me!

Solution proposed by Robin:

  DefaultFormatter format = new DefaultFormatter(); format.setOverwriteMode(false); inputField = new JFormattedTextField(format); // put the formatter in the constructor inputField.setValue("don't overtype this!"); inputField.setColumns(20); 

Thanks for the help! Relations

Answer 1

shot in the dark, there is something that I missed

 import java.awt.GridLayout; import java.math.RoundingMode; import java.text.NumberFormat; import javax.swing.JFormattedTextField; import javax.swing.JFrame; import javax.swing.text.NumberFormatter; public class MaskFormatterTest { public static void main(String[] args) throws Exception { NumberFormat format = NumberFormat.getNumberInstance(); format.setMaximumFractionDigits(2); format.setMinimumFractionDigits(2); format.setParseIntegerOnly(true); format.setRoundingMode(RoundingMode.HALF_UP); NumberFormatter formatter = new NumberFormatter(format); formatter.setMaximum(1000); formatter.setMinimum(0.0); formatter.setAllowsInvalid(false); //formatter.setOverwriteMode(false); JFormattedTextField tf = new JFormattedTextField(formatter); tf.setColumns(10); tf.setValue(123456789.99); JFormattedTextField tf1 = new JFormattedTextField(formatter); tf1.setValue(1234567890.99); JFormattedTextField tf2 = new JFormattedTextField(formatter); tf2.setValue(1111.1111); JFormattedTextField tf3 = new JFormattedTextField(formatter); tf3.setValue(-1111.1111); JFormattedTextField tf4 = new JFormattedTextField(formatter); tf4.setValue(-56); JFrame frame = new JFrame("Test"); frame.setLayout(new GridLayout(5, 0)); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); frame.add(tf); frame.add(tf1); frame.add(tf2); frame.add(tf3); frame.add(tf4); frame.pack(); frame.setVisible(true); } }