January 07, 2012

java swing calendar

How to create a swing calendar in java.


Are you looking for a calendar in java swing, then here is the solution. The calendar works on java swing jframe

The use of calendar in java window as well as web application is inevitable.


java calendar for window application
Java swing calendar for window applications



/**
* Filename :Calendarium.java
* Author : belazy.blog.com
* Date : Sep 29, 2007
* Project Name : 
* Description : Display a calendar in java swing.
*/
package com.proximotech.kims.utils;


import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;



/**
* @see
* @author
* @author Seahawks
* @version 1.0
*/
public class Calendarium {
int month = java.util.Calendar.getInstance().get(java.util.Calendar.MONTH);
int year = java.util.Calendar.getInstance().get(java.util.Calendar.YEAR);;
JLabel l = new JLabel("", JLabel.CENTER);
String day = "";
JDialog d;
JButton[] button = new JButton[49];

public Calendarium(JFrame parent) {
d = new JDialog();
d.setModal(true);
String[] header = { "Sun", "Mon", "Tue", "Wed", "Thur", "Fri", "Sat" };
JPanel p1 = new JPanel(new GridLayout(7, 7));
p1.setPreferredSize(new Dimension(430, 120));

for (int x = 0; x < button.length; x++) {
final int selection = x;
button[x] = new JButton();
button[x].setFocusPainted(false);
button[x].setBackground(Color.white);
if (x > 6)
button[x].addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
day = button[selection].getActionCommand();
d.dispose();
}
});
if (x < 7) {
button[x].setText(header[x]);
button[x].setForeground(Color.red);
}
p1.add(button[x]);
}
JPanel p2 = new JPanel(new GridLayout(1, 3));
JButton previous = new JButton("<< Previous");
previous.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
month--;
displayDate();
}
});
p2.add(previous);
p2.add(l);
JButton next = new JButton("Next >>");
next.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
month++;
displayDate();
}
});
p2.add(next);
d.add(p1, BorderLayout.CENTER);
d.add(p2, BorderLayout.SOUTH);
d.pack();
d.setLocationRelativeTo(parent);
displayDate();
d.setVisible(true);
}

/**
* @param panel_ins : instance of a panel
*
*
Description : This constructor is call the calendar
*
Date : Nov 8, 2011
*
Coded by : belazy..
*/
public Calendarium(JPanel panel_ins) {
d = new JDialog();
d.setModal(true);
String[] header = { "Sun", "Mon", "Tue", "Wed", "Thur", "Fri", "Sat" };
JPanel p1 = new JPanel(new GridLayout(7, 7));
p1.setPreferredSize(new Dimension(430, 120));

for (int x = 0; x < button.length; x++) {
final int selection = x;
button[x] = new JButton();
button[x].setFocusPainted(false);
button[x].setBackground(Color.white);
if (x > 6)
button[x].addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
day = button[selection].getActionCommand();
d.dispose();
}
});
if (x < 7) {
button[x].setText(header[x]);
button[x].setForeground(Color.red);
}
p1.add(button[x]);
}
JPanel p2 = new JPanel(new GridLayout(1, 3));
JButton previous = new JButton("<< Previous");
previous.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
month--;
displayDate();
}
});
p2.add(previous);
p2.add(l);
JButton next = new JButton("Next >>");
next.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent ae) {
month++;
displayDate();
}
});
p2.add(next);
d.add(p1, BorderLayout.CENTER);
d.add(p2, BorderLayout.SOUTH);
d.pack();
d.setLocationRelativeTo( panel_ins);
displayDate();
d.setVisible(true);
}



public void displayDate() {
for (int x = 7; x < button.length; x++)
button[x].setText("");
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat(
"MMMM yyyy");
java.util.Calendar cal = java.util.Calendar.getInstance();
cal.set(year, month, 1);
int dayOfWeek = cal.get(java.util.Calendar.DAY_OF_WEEK);
int daysInMonth = cal.getActualMaximum(java.util.Calendar.DAY_OF_MONTH);
for (int x = 6 + dayOfWeek, day = 1; day <= daysInMonth; x++, day++)
button[x].setText("" + day);
l.setText(sdf.format(cal.getTime()));
d.setTitle("CALENDAR");
}

public String setPickedDate() {
if (day.equals(""))
return day;
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat(
"dd-MM-yyyy");
java.util.Calendar cal = java.util.Calendar.getInstance();
cal.set(year, month, Integer.parseInt(day));
return sdf.format(cal.getTime());
}
}



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