wilson.java

用java编程的日历

/*
 * @(#)Wilson.java 1.0 04/06/28
 *
 * You can modify the template of this file in the
 * directory ..\JCreator\Templates\Template_1\Project_Name.java
 *
 * You can also create your own project template by making a new
 * folder in the directory ..\JCreator\Template\. Use the other
 * templates as examples.
 *
 */
package myprojects.wilson;

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

public class Wilson extends JFrame implements ActionListener { 
JComboBox Month = new JComboBox();
JComboBox Year = new JComboBox();
JLabel l1 = new JLabel("年份");
JLabel l2 = new JLabel("月份");
Date now = new Date();
JLabel[] label_day = new JLabel[49];
JButton b1 = new JButton("确定");
JButton b2 = new JButton("现在"); 
int now1 = now.getYear() + 1900;
int now2 = now.getMonth(); 
boolean bool = false; 
String year_int = null;
int month_int;
JPanel pane1 = new JPanel(); 
JPanel pane2 = new JPanel();
JPanel pane3 = new JPanel();

public Wilson() { 
super("2005年日历");
setDefaultCloseOperation(DISPOSE_ON_CLOSE); 
addWindowListener(new WindowAdapter() { 
public void windowClose(WindowEvent e) { 
System.out.print("CLOSING THE WIN"); 

System.exit(0); 
} 
});
setResizable(false);
for (int i = now1 + 1 ; i <= now1 + 1; i++) { 
Year.addItem(i + ""); 
} 
for (int i = 1; i < 13; i++) { 
Month.addItem(i + ""); 
} 
Year.setSelectedIndex(0);
pane1.add(l1);
pane1.add(Year);
Month.setSelectedIndex(now2); 
pane1.add(l2);
pane1.add(Month); 
pane1.add(b1); 
pane1.add(b2);
b1.addActionListener(this);
b2.addActionListener(this);
pane1.setBackground(Color.white);
pane2.setLayout(new GridLayout(7, 7, 10, 10)); 
pane2.setBackground(Color.white);
for (int i = 0; i < 49; i++) { 
label_day[i] = new JLabel(" "); 
pane2.add(label_day[i]);
}
this.setDay(); 
pane3.setLayout(new BorderLayout());
setContentPane(pane2); 
setContentPane(pane1); 
pane3.add(pane2, BorderLayout.SOUTH); 
pane3.add(pane1, BorderLayout.NORTH);
setContentPane(pane3); 
pack(); 
show(); 
} 
void setDay() { 
if (bool) { 
year_int = now1 + ""; 
month_int = now2; 
} else { 
year_int = Year.getSelectedItem().toString(); 
month_int = Month.getSelectedIndex(); 
} 

int year_sel = Integer.parseInt(year_int) - 1900;
Date dt = new Date(year_sel, month_int, 1);
GregorianCalendar cal = new GregorianCalendar();
cal.setTime(dt); 
String week[] = { "星期日", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; 
int day = 0;
int day_week = 0;
for (int i = 0; i < 7; i++) { 
label_day[i].setText(week[i]);
} 
if (month_int == 0 || month_int == 2 || month_int == 4 || month_int == 6 || month_int == 7 || month_int == 9 || month_int == 11) { 
day = 31; 
} else if ( 
month_int == 3 
|| month_int == 5 
|| month_int == 8 
|| month_int == 10) { 
day = 30; 
} else { 
if (cal.isLeapYear(year_sel)) { 
day = 29; 
} else { 
day = 28; 
} 
} 
day_week = 7 + dt.getDay(); 
int count = 1;
for (int i = day_week; i < day_week + day; count++, i++) { 
if (i % 7 == 0 || i == 13 || i == 20 || i == 27 || i == 48 || i == 34 || i == 41) { 
if (i == day_week + now.getDate() - 1) { 
label_day[i].setForeground(Color.blue); 
label_day[i].setText(count + ""); 
} else { 
label_day[i].setForeground(Color.red); 
label_day[i].setText(count + "");
} 
} else { 
if (i == day_week + now.getDate() - 1) { 
label_day[i].setForeground(Color.blue); 
label_day[i].setText(count + ""); 
} else { 
label_day[i].setForeground(Color.black); 
label_day[i].setText(count + ""); 
} 
} 
}
if (day_week == 0) { 
for (int i = day; i < 49; i++) { 
label_day[i].setText(" "); 
} 
} else {  
for (int i = 7; i < day_week; i++) { 
label_day[i].setText(" "); 
}
for (int i = day_week + day; i < 49; i++) { 
label_day[i].setText(" "); 
} 
} 
} 
public void actionPerformed(ActionEvent e) { 
if (e.getSource() == b1) { 
bool = false; 
this.setDay(); 

} else if (e.getSource() == b2) { 
bool = true; 
Year.setSelectedIndex(10); 
Month.setSelectedIndex(now2); 
this.setDay();

} 
} 
public static void main(String[] args) { 
Wilson ct = new Wilson(); 
} 
}