Synchronized digital clock.
//code Start
import java.awt.Color;
import java.awt.Dialog;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Label;
import java.awt.Shape;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.Calendar;
import java.util.Random;
import javax.swing.BorderFactory;
import javax.swing.JDialog;
import javax.swing.JFrame;
import javax.swing.JMenu;
import javax.swing.JMenuBar;
import javax.swing.JMenuItem;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
public class DigitalClock extends JPanel implements Runnable {
static JMenuBar mainBar;
static JMenu open,about;
static JMenuItem exit,aboutme;
Thread t;
Random rand = new Random();
public void paintComponent(Graphics g){
super.paintComponent(g);
g.setFont(new Font("Serif",Font.BOLD,50));
//g.setColor(new Color(rand.nextInt(255), rand.nextInt(255),rand.nextInt(255)));
g.setColor(new Color((0), (0),(255)));
g.drawString(time(), 27, 62);
}
//Constructor to INITIALIZE THE CLOCK
public DigitalClock() {
Start();//Start The CLock
}
public String time() {
Calendar cal = Calendar.getInstance();
int hour = cal.get(Calendar.HOUR_OF_DAY);
int min = cal.get(Calendar.MINUTE);
int second = cal.get(Calendar.SECOND);
String time = includeZero(hour)+":"+includeZero(min)+":"+includeZero(second);
return time;
}
public String includeZero(int number){
String num=(number < 10) ? ("0"+number) : (""+number);
return num;
}
public static void main(String[] args) {
JFrame.setDefaultLookAndFeelDecorated(true);
try {
UIManager.setLookAndFeel("com.sun.java.swing.plaf.nimbus.NimbusLookAndFeel");
} catch (Exception e) {
// TODO: handle exception
}
SwingUtilities.invokeLater(new Runnable() {
@Override
public void run() {
JFrame frame=new JFrame("Clock");
frame.add(new DigitalClock());
frame.setSize(250, 150);
frame.setVisible(true);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setResizable(false);
mainBar = new JMenuBar();
frame.setJMenuBar(mainBar);
open = new JMenu("Open");
mainBar.add(open);
about = new JMenu("About");
mainBar.add(about);
exit = new JMenuItem("Exit");
open.add(exit);
aboutme = new JMenuItem("About me");
about.add(aboutme);
exit.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
System.exit(0);
}
});
aboutme.addActionListener(new ActionListener() {
@Override
public void actionPerformed(ActionEvent arg0) {
JDialog dialog = new JDialog();
dialog.setTitle("About Me");
dialog.setVisible(true);
dialog.setSize(400, 400);
dialog.setLocation(790, 300);
dialog.setDefaultCloseOperation(JDialog.DISPOSE_ON_CLOSE);
dialog.setLayout(null);
Label label =new Label( "Created by : Zeeshan Jamal");
label.setBounds(0, 0, 200, 20);
dialog.add(label);
}
});
}
});
}
public void Start() {
if (t==null){
t= new Thread(this);
t.start();
}
}
public void run(){
while (t == Thread.currentThread()){
repaint();
try {
Thread.sleep(1000);
} catch (Exception e) {
System.out.println(e.getLocalizedMessage());
}
}
}
}
//code end
