Urgent : automatic date formatting in JFormattedTextfield java

Question

How can i do automatic date and time formating using JFormatted textfield.
I need to show the user specified date/time fomat and prevent user from entering other charachter other than date.
for example if the format is yyyy/mm/dd... he must be able to enter only date and not the other charachter., is it possible to do this with out using mask formating., But i need to use JFormattedTexfield in this.
can anyone help me please is urgent....

Answer 1

But how does it affect at the time of entering the
date., still the Jformatted text field is accepting
other char other than date releated char.,If you want to check the input values, for example:
3079/82/55
you will have to set an InputVerifier on the text field component.
Here's a version that only chekcs isDigit:
import  java.awt.*;
import  java.text.*;
import  javax.swing.*;
import  javax.swing.text.*;
class  DateFmt extends JFrame{
  MaskFormatter mf;
  public DateFmt(){
    setLocation(400, 300);
    setDefaultCloseOperation(EXIT_ON_CLOSE);
    JFormattedTextField ftf = new JFormattedTextField();
    try{
      mf = new MaskFormatter("####/##/##");
    catch (ParseException e){
      e.printStackTrace();
    mf.install(ftf);
    getContentPane().add(ftf, BorderLayout.NORTH);
    getContentPane().add
     (new JTextField("to take focus", 10), BorderLayout.SOUTH);
    pack();
  public static void main(String[] args){
    new DateFmt().setVisible(true);
}