Hi Friend,

Try the following code:

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import java.util.*;

public class CalendarExample extends JFrame implements ActionListener {
private static final ArrayList months;
static {
months = new ArrayList(12);
months.add("January");
months.add("February");
months.add("March");
months.add("April");
months.add("May");
months.add("June");
months.add("July");
months.add("August");
months.add("September");
months.add("October ");
months.add("November");
months.add("December");
};
private GregorianCalendar cal;
private JLabel label1;
private JLabel label2;
private JPanel dayPanel;
private boolean ready;

public CalendarExample ( GregorianCalendar d) {
cal = d;
setLayout(new BorderLayout());
JPanel panel1 = new JPanel();
JPanel panel2 = new JPanel();
JButton[] buttons = new JButton[4];

panel2.add(buttons[0] = new JButton("<"));
panel2.add(label1 =new JLabel(String.valueOf(months.get(cal.get(GregorianCalendar.MONTH))), JLabel.CENTER));
panel2.add(buttons[1] = new JButton(">"));
panel2.setBackground(Color.white);

panel1.add(buttons[2] = new JButton("<<"));
panel1.add(label2 = new JLabel(String.valueOf(cal.get(GregorianCalendar.YEAR)),JLabel.CENTER), BorderLayout.CENTER);
panel1.add(buttons[3] = new JButton(">>"));
panel1.setBackground(Color.white);
for (int i=0; i<4; i++) {
buttons[i].addActionListener(this);
buttons[i].setBackground(Color.white);
buttons[i].setForeground(Color.blue);
}
JPanel panel = new JPanel();
panel.setBorder(BorderFactory.createEmptyBorder(5, 10, 0, 10));
panel.add(panel2);
panel.add(panel1);
panel.setBackground(Color.white);
dayPanel = new JPanel(new GridLayout(7, 7));
updateDayGrid();
add(panel, BorderLayout.NORTH);
add(dayPanel, BorderLayout.CENTER);
ready = false;
pack();
setVisible(true);
}
public GregorianCalendar getCal () {
return cal;
}
public void actionPerformed (ActionEvent evt) {
String label = ((JButton) evt.getSource()).getText();
if (label.equals("<")) {
int m = months.indexOf(label1.getText());
m = prevMonth(m);
label1.setText((String) months.get(m));
updateDayGrid();
}
else if (label.equals(">")) {
int m = months.indexOf(label1.getText());
m = nextMonth(m);
label1.setText((String) months.get(m));
updateDayGrid();
}

continue..

else if (label.equals("<<")) {
int y = 0;
try {
y = Integer.parseInt(label2.getText());
}
catch (NumberFormatException e) {
System.err.println(e.toString());
}
label2.setText(String.valueOf(--y));
updateDayGrid();
}
else if (label.equals(">>")) {
int y = 0;
try {
y = Integer.parseInt(label2.getText());
}
catch(Exception e){}
label2.setText(String.valueOf(++y));
updateDayGrid();
}
else {
int m = months.indexOf(label1.getText());
int y = 0;
int d = 0;
try {
y = Integer.parseInt(label2.getText());
d = Integer.parseInt(label);
}
catch(Exception e){}
cal = new GregorianCalendar(y, m, d);
cal.setLenient(false);
}
}
private void updateDayGrid () {
dayPanel.removeAll();
int m = months.indexOf(label1.getText());
int y = 0;
try {
y = Integer.parseInt(label2.getText());
}
catch(Exception e){}
GregorianCalendar temp = new GregorianCalendar(y, m, 1);
temp.setLenient(false);
int offset = 0;
switch(temp.get(GregorianCalendar.DAY_OF_WEEK)) {
case GregorianCalendar.SUNDAY : offset = 0; break;
case GregorianCalendar.MONDAY : offset = 1; break;
case GregorianCalendar.TUESDAY : offset = 2; break;
case GregorianCalendar.WEDNESDAY : offset = 3; break;
case GregorianCalendar.THURSDAY : offset = 4; break;
case GregorianCalendar.FRIDAY : offset = 5; break;
case GregorianCalendar.SATURDAY : offset = 6; break;
}
String daynames[]={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
JLabel l[]=new JLabel[7];
for(int i=0;i<7;i++){
l[i]=new JLabel(daynames[i], JLabel.CENTER);
dayPanel.add(l[i]);
l[i].setForeground(Color.red);
}
for (int i=1; i<=offset; i++) {
dayPanel.add(new JLabel(""));
}
JButton day;
for (int i=1; i<=getLastDay(); i++) {
dayPanel.add(day = new JButton(String.valueOf(i)));
day.addActionListener(this);
day.setForeground(Color.blue);
day.setBackground(Color.white);
dayPanel.setBackground(Color.white);
if (i == cal.get(Calendar.DATE) &&
m == cal.get(Calendar.MONTH) &&
y == cal.get(Calendar.YEAR)) {
day.setForeground(Color.red);
}
}
for (int i=(offset+getLastDay()+1); i<=42; i++) {
dayPanel.add(new JLabel(""));
}
repaint();
}
private int nextMonth (int month) {
if (month == 11) {
return(0);
}
return(++month);
}
private int prevMonth (int month) {
if (month == 0) {
return(11);
}
return(--month);
}
private int getLastDay () {
int m = (months.indexOf(label1.getText()) + 1);
int y = 0;
try {
y = Integer.parseInt(label2.getText());
}
catch(Exception e){}
if ((m==4) || (m==6) || (m==9) || (m==11)) {
return(30);
}
else if (m==2) {
if (cal.isLeapYear(y)) {
return(29);
}
return(28);
}
return(31);
}
public static void main(String[]args){
GregorianCalendar cal=new GregorianCalendar();
CalendarExample e=new CalendarExample(cal);
}
}

Thanks