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package com.wk
import java.awt.EventQueue;
import java.awt.GridLayout;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.util.Calendar;
import java.util.GregorianCalendar;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.SwingConstants;
import javax.swing.border.EmptyBorder;
import javax.swing.UIManager;
public class ElectronicClock extends JFrame {
/**
*
*/
private static final long serialVersionUID = 3688891358876658465L;
private JPanel contentPane;
private ImageIcon colon = new ImageIcon("src/images/colon.png");
private ImageIcon[] numbers = { new ImageIcon("src/images/0.png"), new ImageIcon("src/images/1.png"), new ImageIcon("src/images/2.png"), new ImageIcon("src/images/3.png"),
new ImageIcon("src/images/4.png"), new ImageIcon("src/images/5.png"), new ImageIcon("src/images/6.png"), new ImageIcon("src/images/7.png"),
new ImageIcon("src/images/8.png"), new ImageIcon("src/images/9.png") };
private JLabel hour1Label;
private JLabel hour2Label;
private JLabel colon1Label;
private JLabel minute1Label;
private JLabel minute2Label;
private JLabel colon2Label;
private JLabel second1Label;
private JLabel second2Label;
/**
* Launch the application.
*/
public static void main(String[] args) {
try {
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
} catch (Throwable e) {
e.printStackTrace();
}
EventQueue.invokeLater(new Runnable() {
public void run() {
try {
ElectronicClock frame = new ElectronicClock();
frame.setVisible(true);
} catch (Exception e) {
e.printStackTrace();
}
}
});
}
/**
* Create the frame.
*/
public ElectronicClock() {
addWindowListener(new WindowAdapter() {
@Override
public void windowActivated(WindowEvent arg0) {
do_this_windowActivated(arg0);
}
});
setTitle("电子时钟");
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
setBounds(100, 100, 350, 100);
contentPane = new JPanel();
contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
setContentPane(contentPane);
contentPane.setLayout(new GridLayout(1, 8, 5, 5));
JPanel hour1Panel = new JPanel();
contentPane.add(hour1Panel);
hour1Label = new JLabel("");
hour1Label.setHorizontalAlignment(SwingConstants.CENTER);
hour1Panel.add(hour1Label);
JPanel hour2Panel = new JPanel();
contentPane.add(hour2Panel);
hour2Label = new JLabel("");
hour2Label.setHorizontalAlignment(SwingConstants.CENTER);
hour2Panel.add(hour2Label);
JPanel colon1Panel = new JPanel();
contentPane.add(colon1Panel);
colon1Label = new JLabel("");
colon1Label.setHorizontalAlignment(SwingConstants.CENTER);
colon1Panel.add(colon1Label);
JPanel minute1Panel = new JPanel();
contentPane.add(minute1Panel);
minute1Label = new JLabel("");
minute1Label.setHorizontalAlignment(SwingConstants.CENTER);
minute1Panel.add(minute1Label);
JPanel minute2Panel = new JPanel();
contentPane.add(minute2Panel);
minute2Label = new JLabel("");
minute2Label.setHorizontalAlignment(SwingConstants.CENTER);
minute2Panel.add(minute2Label);
JPanel colon2Panel = new JPanel();
contentPane.add(colon2Panel);
colon2Label = new JLabel("");
colon2Label.setHorizontalAlignment(SwingConstants.CENTER);
colon2Panel.add(colon2Label);
JPanel second1Panel = new JPanel();
contentPane.add(second1Panel);
second1Label = new JLabel("");
second1Label.setHorizontalAlignment(SwingConstants.CENTER);
second1Panel.add(second1Label);
JPanel second2Panel = new JPanel();
contentPane.add(second2Panel);
second2Label = new JLabel("");
second2Label.setHorizontalAlignment(SwingConstants.CENTER);
second2Panel.add(second2Label);
}
private void getTime() {
Calendar calendar = new GregorianCalendar();
int hour = calendar.get(Calendar.HOUR_OF_DAY); // 获得当前的小时
int minute = calendar.get(Calendar.MINUTE); // 获得当前的分钟
int second = calendar.get(Calendar.SECOND); // 获得当前的秒钟
hour1Label.setIcon(numbers[hour / 10]);// 利用商获得小时第一位图片
hour2Label.setIcon(numbers[hour % 10]);// 利用余数获得小时第二位图片
minute1Label.setIcon(numbers[minute / 10]);// 利用商获得分钟第一位图片
minute2Label.setIcon(numbers[minute % 10]);// 利用余数获得小时第二位图片
second1Label.setIcon(numbers[second / 10]);// 利用商获得秒钟第一位图片
second2Label.setIcon(numbers[second % 10]);// 利用余数获得小时第二位图片
}
private class ClockRunnable implements Runnable {
@Override
public void run() {
while (true) {
getTime();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
}
protected void do_this_windowActivated(WindowEvent arg0) {
colon1Label.setIcon(colon);
colon2Label.setIcon(colon);
new Thread(new ClockRunnable()).start();
}
}