Validating JTextField for Date Format

Question

hello,
everybody.
i am trying to perform a validation on text field, i.e if the input is in a date format then it will show, other wise it will consume the character.
please help me out of this problem i am stucked with it.
waitng for reply. the following is my code.
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.text.*;
public class RilJDateField implements KeyListener
     JFrame frame;
     JPanel panel;
     JLabel label;
     JTextField text;
     GridBagLayout gl;
     GridBagConstraints gbc;
     Date date = new Date();
     public static void main(String a[])
          new RilJDateField();
     public RilJDateField()
          panel = new JPanel();
          gl = new GridBagLayout();
          gbc = new GridBagConstraints();
          panel.setLayout(gl);
          label = new JLabel("Only Date Format");
          text = new JTextField(5);
          gbc.anchor = GridBagConstraints.NORTHWEST;
          gbc.gridx = 1;
          gbc.gridy = 1;
          gl.setConstraints(label,gbc);
          gbc.anchor = GridBagConstraints.NORTHWEST;
          gbc.gridx = 2;
          gbc.gridy = 1;
          gl.setConstraints(text,gbc);
          panel.add(label);
          panel.add(text);
          text.addKeyListener(this);
          text.requestFocus();
          frame = new JFrame("RilJDateField Demo");
          frame.getContentPane().add(panel);
          frame.addWindowListener(new WindowAdapter() {
                    public void windowClosing(WindowEvent we)
                         System.exit(0);
          frame.setSize(300,300);
          frame.setVisible(true);
     public void keyTyped(KeyEvent ke)
     public void keyPressed(KeyEvent ke)
          DateFormat df;
          df = DateFormat.getDateInstance();
          df = (DateFormat) ke.getSource();
          if(!(df.equals(date)))
               ke.consume();
     public void keyReleased(KeyEvent ke)
}

Answer 1

hi,
thanks very much, u gave me great idea.
according to ur suggestion i used JFormattedTextField as well as SimpleDateFormat, but while giving keyevent i am getting the error,
so please if possible reply for this.
the error is
java.lang.ClassCastException
     at RilJDateField.keyTyped(RilJDateField.java:61)
     at java.awt.Component.processKeyEvent(Unknown Source)
     at javax.swing.JComponent.processKeyEvent(Unknown Source)
     at java.awt.Component.processEvent(Unknown Source)
     at java.awt.Container.processEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.KeyboardFocusManager.redispatchEvent(Unknown Source)
     at java.awt.DefaultKeyboardFocusManager.dispatchKeyEvent(Unknown Source)
     at java.awt.DefaultKeyboardFocusManager.preDispatchKeyEvent(Unknown Source)
     at java.awt.DefaultKeyboardFocusManager.typeAheadAssertions(Unknown Source)
     at java.awt.DefaultKeyboardFocusManager.dispatchEvent(Unknown Source)
     at java.awt.Component.dispatchEventImpl(Unknown Source)
     at java.awt.Container.dispatchEventImpl(Unknown Source)
     at java.awt.Window.dispatchEventImpl(Unknown Source)
     at java.awt.Component.dispatchEvent(Unknown Source)
     at java.awt.EventQueue.dispatchEvent(Unknown Source)
     at java.awt.EventDispatchThread.pumpOneEventForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
     at java.awt.EventDispatchThread.run(Unknown Source)and my source code is
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
import java.util.*;
import java.text.*;
public class RilJDateField implements KeyListener
     JFrame frame;
     JPanel panel;
     JLabel label;
     JFormattedTextField text;
     GridBagLayout gl;
     GridBagConstraints gbc;
     Date date = new Date();
     SimpleDateFormat formatter;
     public static void main(String a[])
          new RilJDateField();
     public RilJDateField()
          panel = new JPanel();
          gl = new GridBagLayout();
          gbc = new GridBagConstraints();
          panel.setLayout(gl);
          label = new JLabel("Only Date Format");
          text = new JFormattedTextField();
          text.setColumns(10);
          formatter = new SimpleDateFormat("dd mm yyyy");
          gbc.anchor = GridBagConstraints.NORTHWEST;
          gbc.gridx = 1;
          gbc.gridy = 1;
          gl.setConstraints(label,gbc);
          gbc.anchor = GridBagConstraints.NORTHWEST;
          gbc.gridx = 2;
          gbc.gridy = 1;
          gl.setConstraints(text,gbc);
          panel.add(label);
          panel.add(text);
          text.addKeyListener(this);
          text.requestFocus();
          frame = new JFrame("RilJDateField Demo");
          frame.getContentPane().add(panel);
          frame.addWindowListener(new WindowAdapter() {
                    public void windowClosing(WindowEvent we)
                         System.exit(0);
          frame.setSize(300,300);
          frame.setVisible(true);
     public void keyTyped(KeyEvent ke)
          Date date = (Date) ke.getSource();
          if(!(date.equals(formatter)))
               ke.consume();
     public void keyPressed(KeyEvent ke)
     public void keyReleased(KeyEvent ke)
}