Year.java
Codeimport javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Year extends Box implements ActionListener
{
int year;
JTextField showYear=null;
JButton 明年,去年;
CalendarPad 日历;
public Year(CalendarPad 日历)
{
super(BoxLayout.X_AXIS);
showYear = new JTextField(4);
showYear.setForeground(Color.BLUE);
showYear.setFont(new Font("TimesRomn",Font.BOLD,14));
this.日历=日历;
year = 日历.getYear();
明年 = new JButton("下年");
去年 = new JButton("上年");
add(去年);
add(showYear);
add(明年);
showYear.addActionListener(this);
去年.addActionListener(this);
明年.addActionListener(this);
}
public void setYear(int year)
{
this.year = year;
showYear.setText(""+year);
}
public int getYear()
{
return year;
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==去年)
{
year = year-1;
showYear.setText(""+year);
日历.setYear(year);
日历.设置日历牌(year,日历.getMonth());
}
else if(e.getSource()==明年)
{
year = year + 1;
showYear.setText(""+year);
日历.setYear(year);
日历.设置日历牌(year,日历.getMonth());
}
else if(e.getSource()==showYear)
{
try
{
year = Integer.parseInt(showYear.getText());
showYear.setText(""+year);
日历.setYear(year);
日历.设置日历牌(year,日历.getMonth());
}catch(NumberFormatException ee)
{
showYear.setText(""+year);
日历.setYear(year);
日历.设置日历牌(year,日历.getMonth());
}
}
}
}
Month.java
Codeimport javax.swing.*;
import java.awt.*;
import java.awt.event.*;
public class Month extends Box implements ActionListener
{
int month;
JTextField showMonth = null;
JButton 下月,上月;
CalendarPad 日历;
public Month(CalendarPad 日历)
{
super(BoxLayout.X_AXIS);
this.日历 = 日历;
showMonth = new JTextField(2);
month = 日历.getMonth();
showMonth.setEditable(false);
showMonth.setForeground(Color.blue);
showMonth.setFont(new Font("TimesRoman",Font.BOLD,16));
下月 = new JButton("下月");
上月 = new JButton("上月");
add(上月);
add(showMonth);
add(下月);
上月.addActionListener(this);
下月.addActionListener(this);
showMonth.setText(""+month);
}
public void setMonth(int month)
{
if(month<=12&&month>=1)
{
this.month = month;
}
else
{
this.month=1;
}
showMonth.setText(""+month);
}
public int getMonth()
{
return month;
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==上月)
{
if(month>=2)
{
month = month - 1;
日历.setMonth(month);
日历.设置日历牌(日历.getYear(),month);
}
else if(month==1)
{
month = 12;
日历.setMonth(month);
日历.设置日历牌(日历.getYear(),month);
}
showMonth.setText(""+month);
}
else if(e.getSource()==下月)
{
if(month<12)
{
month = month + 1;
日历.setMonth(month);
日历.设置日历牌(日历.getYear(),month);
}
else if(month==12)
{
month = 1;
日历.setMonth(month);
日历.设置日历牌(日历.getYear(),month);
}
showMonth.setText(""+month);
}
}
}
CalendarPad.java
Codeimport java.util.Calendar;//util包，Calendar类
import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.Hashtable;//util包，哈希表?可以设置键key,寻找匹配。
/**
* This code was edited or generated using CloudGarden's Jigloo
* SWT/Swing GUI Builder, which is free for non-commercial
* use. If Jigloo is being used commercially (ie, by a corporation,
* company or business for any purpose whatever) then you
* should purchase a license for each developer using Jigloo.
* Please visit www.cloudgarden.com for details.
* Use of Jigloo implies acceptance of these licensing terms.
* A COMMERCIAL LICENSE HAS NOT BEEN PURCHASED FOR
* THIS MACHINE, SO JIGLOO OR THIS CODE CANNOT BE USED
* LEGALLY FOR ANY CORPORATE OR COMMERCIAL PURPOSE.
*/
public class CalendarPad extends JFrame implements MouseListener//声明接口
{
int year,month,day;
Hashtable hashtable;
File file;
JTextField showDay[];
JLabel title[];
Calendar 日历;//此类有什么方法？
int 星期几;
NotePad notepad=null;
Month 负责改变月;
Year 负责改变年;
String 星期[]={"星期日","星期一","星期二","星期三","星期四","星期五","星期六"};
JPanel leftPanel,rightPanel;
public CalendarPad(int year,int month,int day)
{
JPanel leftPanel = new JPanel();
JPanel leftCenter=new JPanel();
JPanel leftNorth=new JPanel();
leftCenter.setLayout(new GridLayout(7,7));
JPanel rightPanel=new JPanel();
rightPanel.setPreferredSize(new java.awt.Dimension(262, 256));//设置右边面版的大小？
this.year=year;//把形参传给实参。
this.month=month;
this.day=day;
负责改变年=new Year(this);
负责改变年.setYear(year);
负责改变月=new Month(this);
负责改变月.setMonth(month);
title=new JLabel[7];//用来显示星期的Label
showDay=new JTextField[42];
for(int j=0;j<7;j++)
{
title[j]=new JLabel();
title[j].setText(星期[j]);
title[j].setBorder(BorderFactory.createRaisedBevelBorder());//什么意义？
leftCenter.add(title[j]);
}
title[0].setForeground(Color.red);
title[6].setForeground(Color.blue);
for(int i=0;i<42;i++)//添加显示日期的TextField,并未设置setText()
{
showDay[i]=new JTextField();
showDay[i].addMouseListener(this);
showDay[i].setEditable(false);
leftCenter.add(showDay[i]);
}
日历=Calendar.getInstance();//得到当前日期？
Box box=Box.createHorizontalBox();//Box的定义，new 呢 ？
box.add(负责改变年);
box.add(负责改变月);
leftNorth.add(box);
leftPanel.setLayout(new BorderLayout());
leftPanel.add(leftNorth,BorderLayout.NORTH);
leftPanel.add(leftCenter,BorderLayout.CENTER);
leftPanel.add(new Label("请在年份输入框内输入所查年份(负数表示公元前),并回车确定"),BorderLayout.SOUTH);
leftPanel.validate();//显示所包含组件
Container con=getContentPane();//什么意义？
this.setFocusCycleRoot(false);//什么意义？
JSplitPane split=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,leftPanel,rightPanel);//什么？中间带条的？
con.add(split,BorderLayout.CENTER);
con.validate();
hashtable=new Hashtable();
file=new File("日历记事本.txt");//在当前目录下新建：日历记事本.txt文件。若已经存在呢？
if(!file.exists())
{
try//文件输入输出操作步骤
{ //file=new File("日历记事本.txt");建立文件对象
FileOutputStream out=new FileOutputStream(file);//建立输出流对象，以文件对象为参数。
ObjectOutputStream objectOut=new ObjectOutputStream(out);//建立输出对象，以输出流为参数。
objectOut.writeObject(hashtable);//把文件内容写进哈希表。
objectOut.close();//关闭
out.close();
}catch(IOException e)
{
}
}
notepad=new NotePad(this);
rightPanel.add(notepad);
设置日历牌(year,month);
addWindowListener(new WindowAdapter()//覆盖接口方法。
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
});
setVisible(true);//没有显式声明Frame,即JFrame f=new JFrame("标题");因为继承。
this.setBounds(29, 52, 570, 285);//大小位置。x,y,Width,Height
this.setTitle("\u5927\u6c14\u8c61&\u78a7\u5929\u98de\u9e64");
this.setResizable(false);//窗口大小不可改变。
validate();//检查包含的组件。
}
public void 设置日历牌(int year,int month)
{
日历.set(year,month-1,1);//设置哪年哪月哪日，month为什么-1?
星期几=日历.get(Calendar.DAY_OF_WEEK)-1;//get方法得到上面设置的,为什么-1?
if(month==1||month==3||month==5||month==7||month==8||month==10||month==12)
{
排列号码(星期几,31);
}else if(month==4||month==6||month==9||month==11)
{
排列号码(星期几,30);
}else if(month==2)
{
if((year%4==0&&year%100!=0)||(year%400==0))
{
排列号码(星期几,29);
}else
{
排列号码(星期几,28);
}
}
}
public void 排列号码(int 星期几,int 月天数)//排列本月号码需要从上月开始算。
{
for(int i=星期几,n=1;i<星期几+月天数;i++)
{
showDay[i].setText(""+n);//""+n表示：把n用字符串表示。
if(n==day)
{
showDay[i].setForeground(Color.green);
showDay[i].setFont(new Font("TimesRoman",Font.BOLD,20));
}else
{
showDay[i].setFont(new Font("TimesRoman",Font.BOLD,12));
showDay[i].setForeground(Color.black);
}
if(i%7==6)
{
showDay[i].setForeground(Color.blue);
}
if(i%7==0)
{
showDay[i].setForeground(Color.red);
}
n++;
}
for(int i=0;i<星期几;i++)
{
showDay[i].setText("");
}
for(int i=星期几+月天数;i<42;i++)
{
showDay[i].setText("");
}
}
public int getYear()//引用时,int a = this.getYear();
{
return year;
}
public void setYear(int y)//调用时，this.setYear(8);
{
year=y;
notepad.setYear(year);
}
public int getMonth()
{
return month;
}
public void setMonth(int m)
{
month=m;
notepad.setMonth(month);
}
public int getDay()
{
return day;
}
public void setDay(int d)
{
day=d;
notepad.setDay(day);
}
public Hashtable getHashtable()
{
return hashtable;
}
public File getFile()
{
return file;
}
public void mousePressed(MouseEvent e)
{
JTextField source=(JTextField)e.getSource();//定义组件的另外一种方法。此法完全引用了事件源组件的所有属性。
try
{
day=Integer.parseInt(source.getText());
notepad.setDay(day);
notepad.设置信息条(year,month,day);
notepad.设置文本区(null);
notepad.获取日志内容(year,month,day);
}catch(Exception ee)
{
}
}
public void mouseClicked(MouseEvent e)
{
}
public void mouseReleased(MouseEvent e)
{
}
public void mouseEntered(MouseEvent e)
{
}
public void mouseExited(MouseEvent e)
{
}
public static void main(String args[])
{
Calendar calendar=Calendar.getInstance();//得到当前日期。
int y=calendar.get(Calendar.YEAR);
int m=calendar.get(Calendar.MONTH)+1;
int d=calendar.get(Calendar.DAY_OF_MONTH);
new CalendarPad(y,m,d);
}
}
NotePad.java
Codeimport java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import java.io.*;
public class NotePad extends JPanel implements ActionListener
{
JTextArea text;
JButton 保存日志,删除日志;
Hashtable table;
JLabel 信息条;
int year,month,day;
File file;
CalendarPad calendar;
public NotePad(CalendarPad calendar)
{
this.calendar = calendar;
year = calendar.getYear();
month = calendar.getMonth();
day = calendar.getDay();
table = calendar.getHashtable();
file = calendar.getFile();
信息条=new JLabel(""+year+"年"+month+"月"+day+"日",JLabel.CENTER);
信息条.setFont(new Font("TimesRoman",Font.BOLD,16));
信息条.setForeground(Color.blue);
text = new JTextArea(10,10);
保存日志=new JButton("保存日志");
删除日志=new JButton("删除日志");
保存日志.addActionListener(this);
删除日志.addActionListener(this);
setLayout(new BorderLayout());
JPanel pSouth = new JPanel();
add(信息条,BorderLayout.NORTH);
pSouth.add(保存日志);
pSouth.add(删除日志);
add(pSouth,BorderLayout.SOUTH);
add(new JScrollPane(text),BorderLayout.CENTER);
}
public void actionPerformed(ActionEvent e)
{
if(e.getSource()==保存日志)
{
保存日志(year,month,day);
}
else if(e.getSource()==删除日志)
{
删除日志(year,month,day);
}
}
public void setYear(int year)
{
this.year = year;
}
public int getYear()
{
return year;
}
public void setMonth(int month)
{
this.month=month;
}
public int getMonth()
{
return month;
}
public void setDay(int day)
{
this.day=day;
}
public int getDay()
{
return day;
}
public void 设置信息条(int year,int month,int day)
{
信息条.setText(""+year+"年"+month+"月"+day+"日");
}
public void 设置文本区(String s)
{
text.setText(s);
}
public void 获取日志内容(int year,int month,int day)
{
String key=""+year+""+month+""+day;
try
{
FileInputStream inOne=new FileInputStream(file);
ObjectInputStream inTwo=new ObjectInputStream(inOne);
table=(Hashtable)inTwo.readObject();
inOne.close();
inTwo.close();
}
catch(Exception ee)
{
}
if(table.containsKey(key))
{
String m=""+year+"年"+month+"月"+day+"日这一天有日志记录，想看吗？";
int ok=JOptionPane.showConfirmDialog(this,m,"询问",JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
if(ok==JOptionPane.YES_OPTION)
{
text.setText((String)table.get(key));
}
else
{
text.setText("");
}
}
else
{
text.setText("无日志记录");
}
}
public void 保存日志(int year,int month,int day)
{
String 日志内容=text.getText();
String key=""+year+""+month+""+day;
String m=""+year+"年"+month+"月"+day+"日，保存日志吗？";
int ok=JOptionPane.showConfirmDialog(this,m,"询问",JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
if(ok==JOptionPane.YES_OPTION)
{
try
{
FileInputStream inOne=new FileInputStream(file);
ObjectInputStream inTwo=new ObjectInputStream(inOne);
table=(Hashtable)inTwo.readObject();
inOne.close();
inTwo.close();
table.put(key,日志内容);
FileOutputStream out=new FileOutputStream(file);
ObjectOutputStream objectOut=new ObjectOutputStream(out);
objectOut.writeObject(table);
objectOut.close();
out.close();
}
catch(Exception ee)
{
}
}
}
public void 删除日志(int year,int month,int day)
{
String key=""+year+""+month+""+day;
if(table.containsKey(key))
{
String m=""+year+"年"+month+"月"+day+"日的日志吗？";
int ok=JOptionPane.showConfirmDialog(this,m,"询问",JOptionPane.YES_NO_OPTION,JOptionPane.QUESTION_MESSAGE);
if(ok==JOptionPane.YES_OPTION)
{
try
{
FileInputStream inOne=new FileInputStream(file);
ObjectInputStream inTwo=new ObjectInputStream(inOne);
table=(Hashtable)inTwo.readObject();
inOne.close();
inTwo.close();
table.remove(key);
FileOutputStream out=new FileOutputStream(file);
ObjectOutputStream objectOut=new ObjectOutputStream(out);
objectOut.close();
out.close();
text.setText(null);
}catch(Exception ee)
{
}
}
}
else
{
String m=""+year+"年"+month+"月"+day+"日无日志记录";
JOptionPane.showMessageDialog(this,m,"提示",JOptionPane.WARNING_MESSAGE);
}
}
}