How to display calender

Question

Hi,
Iam developing a swings application..in that i have adate column..if the user selects a date feild then in tha corresponding value column it should display the month calender for date picking..so that he can select the date from that calender and submits..
plz reply me..
regards,
sam

Answer 1

Plz try this one
1. DateComboBox.java
package test;
import java.awt.event.MouseListener;
import java.awt.event.MouseMotionListener;
import java.awt.event.KeyListener;
import java.awt.event.MouseEvent;
import java.awt.event.KeyEvent;
import java.awt.event.MouseAdapter;
import java.awt.Color;
import java.awt.BorderLayout;
import java.awt.GridLayout;
import java.util.Date;
import java.util.Calendar;
import java.text.SimpleDateFormat;
import javax.swing.JComboBox;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JButton;
import javax.swing.JPopupMenu;
import javax.swing.JLabel;
import javax.swing.UIManager;
import javax.swing.JList;
import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.SwingUtilities;
import javax.swing.BorderFactory;
import javax.swing.event.PopupMenuListener;
import javax.swing.event.PopupMenuEvent;
import javax.swing.plaf.ComboBoxUI;
import javax.swing.plaf.basic.ComboPopup;
import javax.swing.border.Border;
import javax.swing.border.EtchedBorder;
import javax.swing.border.EmptyBorder;
import com.sun.java.swing.plaf.windows.WindowsComboBoxUI;
public class DateComboBox extends JComboBox
private SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");
private SimpleDateFormat montFormat = new SimpleDateFormat("MM");
private int month = Integer.parseInt(montFormat.format(new Date()));
private int limit = month;
private int mbase = month;
private boolean prevLimit = false;
private boolean nextLimit = false;
public DateComboBox(boolean prevLimit, boolean nextLimit,
int prevMax, int nextMax)
this.prevLimit = prevLimit;
this.nextLimit = nextLimit;
this.mbase = month - prevMax;
this.limit = month + nextMax;
public void setDateFormat(SimpleDateFormat dateFormat)
this.dateFormat = dateFormat;
public void setSelectedItem(Object item)
removeAllItems(); // hides the popup if visible
addItem(item);
super.setSelectedItem(item);
public Object getSelectedItem()
Object obj = super.getSelectedItem();
return obj;
public void updateUI()
setUI(new WindowsDateComboBoxUI());
class WindowsDateComboBoxUI extends WindowsComboBoxUI
protected ComboPopup createPopup()
return new DatePopup( comboBox );
protected JButton createArrowButton()
return new JComboButton(1, Color.darkGray,
UIManager.getColor("ComboBox.buttonShadow"),
UIManager.getColor("ComboBox.buttonDarkShadow"),
UIManager.getColor("ComboBox.buttonHighlight"));
private class DatePopup implements ComboPopup, MouseMotionListener,
MouseListener, KeyListener, PopupMenuListener
protected JComboBox comboBox;
protected Calendar calendar;
protected JPopupMenu popup;
protected JLabel monthLabel;
protected JPanel days = null;
protected SimpleDateFormat monthFormat = new SimpleDateFormat("yyyy MMM");
protected Color selectedBackground;
protected Color selectedForeground;
protected Color background;
protected Color foreground;
public DatePopup(JComboBox comboBox)
this.comboBox = comboBox;
String[] ids = java.util.TimeZone.getAvailableIDs(+9 * 60 * 60 * 1000);
java.util.SimpleTimeZone kor = new java.util.SimpleTimeZone(+9 * 60 * 60 * 1000, ids[0]);
calendar = Calendar.getInstance(kor);
calendar.setTime(new Date());
background = UIManager.getColor("ComboBox.background");
foreground = UIManager.getColor("ComboBox.foreground");
selectedBackground = UIManager.getColor("ComboBox.selectionBackground");
selectedForeground = UIManager.getColor("ComboBox.selectionForeground");
initializePopup();
public void show()
try
calendar.setTime( dateFormat.parse( comboBox.getSelectedItem().toString() ) );
catch (Exception e) {}
updatePopup();
popup.show(comboBox, 0, comboBox.getHeight());
public void hide()
popup.setVisible(false);
protected JList list = new JList();
public JList getList()
return list;
public MouseListener getMouseListener()
return this;
public MouseMotionListener getMouseMotionListener()
return this;
public KeyListener getKeyListener()
return this;
public boolean isVisible()
return popup.isVisible();
public void uninstallingUI()
popup.removePopupMenuListener(this);
public void mousePressed( MouseEvent e ) {}
public void mouseReleased( MouseEvent e ) {}
public void mouseClicked(MouseEvent e)
if (!SwingUtilities.isLeftMouseButton(e) )
return;
if (!comboBox.isEnabled() )
return;
if (comboBox.isEditable() )
comboBox.getEditor().getEditorComponent().requestFocus();
else
comboBox.requestFocus();
togglePopup();
protected boolean mouseInside = false;
public void mouseEntered(MouseEvent e)
mouseInside = true;
public void mouseExited(MouseEvent e)
mouseInside = false;
public void mouseDragged(MouseEvent e) {}
public void mouseMoved(MouseEvent e) {}
public void keyPressed(KeyEvent e) {}
public void keyTyped(KeyEvent e) {}
public void keyReleased( KeyEvent e )
if ( e.getKeyCode() == KeyEvent.VK_SPACE ||
e.getKeyCode() == KeyEvent.VK_ENTER )
togglePopup();
public void popupMenuCanceled(PopupMenuEvent e) {}
protected boolean hideNext = false;
public void popupMenuWillBecomeInvisible(PopupMenuEvent e)
hideNext = mouseInside;
public void popupMenuWillBecomeVisible(PopupMenuEvent e) {}
protected void togglePopup()
if ( isVisible() || hideNext )
hide();
else
show();
hideNext = false;
protected JLabel createUpdateButton(final int field, final int amount)
final JLabel label = new JLabel();
final Border selectedBorder = new EtchedBorder();
final Border unselectedBorder = new EmptyBorder(
selectedBorder.getBorderInsets(new JLabel()));
label.setBorder(unselectedBorder);
label.setForeground(foreground);
label.addMouseListener(new MouseAdapter()
public void mouseReleased(MouseEvent e)
if ( prevLimit && nextLimit)
if ( (month + amount) >= mbase &&
(month + amount) <= limit)
month = month + amount;
calendar.add(field, amount);
updatePopup();
else
calendar.add(field, amount);
updatePopup();
public void mouseEntered(MouseEvent e)
label.setBorder(selectedBorder);
public void mouseExited(MouseEvent e)
label.setBorder(unselectedBorder);
return label;
protected void initializePopup()
JPanel header = new JPanel(); // used Box, but it wasn't Opaque
header.setLayout(new BoxLayout(header, BoxLayout.X_AXIS));
header.setBackground(background);
header.setOpaque(true);
JLabel label;
header.add(Box.createHorizontalStrut(25));
label = createUpdateButton(Calendar.MONTH, -1);
label.setText("<<");
label.setToolTipText("Previous Month");
header.add(label);
monthLabel = new JLabel("", JLabel.CENTER);
monthLabel.setForeground(foreground);
header.add(Box.createHorizontalGlue());
header.add(monthLabel);
header.add(Box.createHorizontalGlue());
label = createUpdateButton(Calendar.MONTH, 1);
label.setText(">>");
label.setToolTipText("Next Month");
header.add(label);
header.add(Box.createHorizontalStrut(25));
popup = new JPopupMenu();
popup.setBorder(BorderFactory.createLineBorder(Color.black));
popup.setLayout(new BorderLayout());
popup.setBackground(background);
popup.addPopupMenuListener(this);
popup.add(BorderLayout.NORTH, header);
// update the Popup when either the month or the year of the calendar has been changed
protected void updatePopup()
monthLabel.setText( monthFormat.format(calendar.getTime()) );
if (days != null)
popup.remove(days);
days = new JPanel(new GridLayout(0, 7));
days.setBackground(background);
days.setOpaque(true);
Calendar setupCalendar = (Calendar) calendar.clone();
setupCalendar.set(Calendar.DAY_OF_WEEK, setupCalendar.getFirstDayOfWeek());
for (int i = 0; i < 7; i++)
int dayInt = setupCalendar.get(Calendar.DAY_OF_WEEK);
JLabel label = new JLabel();
label.setHorizontalAlignment(JLabel.CENTER);
label.setForeground(foreground);
if (dayInt == Calendar.SUNDAY)
label.setText("Sun");
else if (dayInt == Calendar.MONDAY)
label.setText("Mon");
else if (dayInt == Calendar.TUESDAY)
label.setText("Tue");
else if (dayInt == Calendar.WEDNESDAY)
label.setText("Wed");
else if (dayInt == Calendar.THURSDAY)
label.setText("Thu");
else if (dayInt == Calendar.FRIDAY)
label.setText("Fri");
else if (dayInt == Calendar.SATURDAY)
label.setText("Sat");
days.add(label);
setupCalendar.roll(Calendar.DAY_OF_WEEK, true);
setupCalendar = (Calendar) calendar.clone();
setupCalendar.set(Calendar.DAY_OF_MONTH, 1);
int first = setupCalendar.get(Calendar.DAY_OF_WEEK);
for (int i = 0; i < (first - 1); i++)
days.add(new JLabel(""));
for (int i = 1; i <= setupCalendar.getActualMaximum(Calendar.DAY_OF_MONTH); i++)
final int day = i;
final JLabel label = new JLabel(String.valueOf(day));
label.setHorizontalAlignment(JLabel.CENTER);
label.setForeground(foreground);
label.addMouseListener(new MouseListener()
public void mousePressed(MouseEvent e) {}
public void mouseClicked(MouseEvent e) {}
public void mouseReleased(MouseEvent e)
label.setOpaque(false);
label.setBackground(background);
label.setForeground(foreground);
calendar.set(Calendar.DAY_OF_MONTH, day);
comboBox.setSelectedItem(dateFormat.format(calendar.getTime()));
hide();
comboBox.requestFocus();
public void mouseEntered(MouseEvent e)
label.setOpaque(true);
label.setBackground(selectedBackground);
label.setForeground(selectedForeground);
public void mouseExited(MouseEvent e)
label.setOpaque(false);
label.setBackground(background);
label.setForeground(foreground);
days.add(label);
popup.add(BorderLayout.CENTER, days);
popup.pack();
public static void main(String[] args)
JFrame frm = new JFrame();
frm.getContentPane().setLayout(new BorderLayout());
DateComboBox box = new DateComboBox(false, false, 12, 12);
box.setPreferredSize(new java.awt.Dimension(150, 30));
frm.getContentPane().add(box, BorderLayout.NORTH);
frm.setSize(150, 75);
frm.setLocation(500, 400);
frm.setVisible(true);
2. JComboButton.java
package test;
import java.awt.*;
import java.awt.event.*;
import javax.swing.table.*;
import javax.swing.*;
import javax.swing.plaf.basic.*;
public class JComboButton extends BasicArrowButton
Color background,shadow,darkShadow;
public JComboButton(int direction, Color background, Color shadow,
Color darkShadow, Color highlight)
super(direction,background,shadow,darkShadow,highlight);
this.background=background;
this.shadow=shadow;
this.darkShadow=darkShadow;
public void paintTriangle(Graphics g, int x, int y, int size, int direction, boolean isEnabled)
int w=getWidth()/2;
int h=getHeight();
Color oldColor=g.getColor();
g.setColor(new Color(193, 193, 193));
g.drawRect(0, 0, getWidth(), h);
g.setColor(new Color(230, 230, 230));
g.fillRect(1, 1, getWidth()-1, h-1); // this should clear the border for you
g.setColor(Color.black);
Polygon po = new Polygon(); // polygon for arrow
po.addPoint(w-2, h-9);
po.addPoint(w+2, h-9);
po.addPoint(w, h-7);
g.drawPolygon(po);
g.setColor(Color.darkGray);
g.fillPolygon(po);
g.setColor(oldColor);