标签：
一 要求：带有日程提醒功能的日历。
1、显示信息：用户可以向前翻页查询前一个月的日期，也可以向后翻页查询下一个月的日期。
2、定时提醒：用户可以针对某一天来添加，删除和编辑这一天的日程提醒信息，当系统时间和提醒时间相吻合时，给出具有提示信息的对话框。
3、查询信息：用户可以查询到某个月的所有的提示信息。
二、核心算法详细设计
通过点击save，来存储保留在当天的信息，同样的可以通过delete来删除。通过输入日期在点击Query查询某天或某月当天的信息及其记录信息。
三、完整源码
完整源码：给出完整的源代码。
文件：Rljsb.java
带有日程提醒功能的日历。
package wenmiao;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.border.*;
import java.util.Calendar;
import java.util.*;
import java.io.*;
import java.io.IOException;
public class Rljsb extends JFrame implements ActionListener,MouseListener {
int year,month,day;
int yearafterquery,monthafterquery;
int startday;
String SwitchMonth;
String key;
int changeyearmessage;
int changemonthmessage;
int priormonth;
int prioryear;
boolean ischange=false;
boolean ischange_priornext=false;
private JPanel LeftPane,RightPane;
//Left sub
private JLabel YearLabel;
private JLabel MonthLabel;
private JComboBox MonthCombobox;
private JTextField ShowDays[]= new JTextField[42];
private JTextField YearText;
private JLabel Ask;
private JLabel ShowDate;
private JLabel Blank;
private JLabel TopBarTitle[]=new JLabel[7];
private JButton ToToday;
private JButton Query;
private String week[]={"SUN","MON","TUE","WED","THU","FRI","SAT"};
//right sub
private JLabel NorthMonthDayYear;
private JTextArea CenterText;
private JButton SouthSave,SouthDelete;
private JButton PriorMonth;
private JButton NextMonth;
public Rljsb(int year,int month,int day)
{
setTitle("My Calendar&Textbook");
//the layout about left of jpane
LeftPane = new JPanel();
JPanel LeftCenter = new JPanel();
JPanel LeftNorth = new JPanel();
//JPanel LeftSouth = new JPanel();
LeftPane.setLayout(new BorderLayout());
LeftPane.add(LeftNorth,BorderLayout.NORTH);
LeftPane.add(LeftCenter,BorderLayout.CENTER);
LeftPane.add(ToToday = new JButton("Go to today",new ImageIcon("../images/Handle.gif")),BorderLayout.SOUTH);
ToToday.setBackground(Color.cyan);
ToToday.addActionListener(this);
LeftPane.validate();
//the layout of LeftPane
//LeftPane_North
LeftNorth.setLayout(new GridLayout(3,1,0,-2));
LeftNorth.add(Ask = new JLabel(" Plese input the informations which you want query:"));
JPanel North = new JPanel(new FlowLayout(0,8,0));
LeftNorth.add(North);
North.add(YearLabel=new JLabel("Year:"));
North.add(YearText = new JTextField(4));
YearText.setBackground(Color.getHSBColor(30,20,50));
YearText.setForeground(Color.blue);
YearText.setFont(new Font("TimesRoman",Font.BOLD,17));
YearText.addActionListener(this);
YearText.setFocusable(true);
North.add(Blank=new JLabel(" "));
North.add(MonthLabel = new JLabel("Month:"));
North.add(MonthCombobox = new JComboBox());
//add month to monthcombobox
for(int i=1;i<=12;i++)
{
MonthCombobox.addItem(new Integer(i));
}
//Switch the month
MonthCombobox.setForeground(Color.blue);
MonthCombobox.setFont(new Font("TimesRoman",Font.BOLD,12));
North.add(Blank=new JLabel(" "));
North.add(Query=new JButton("Query"));
Query.setForeground(Color.blue);
Query.addActionListener(this);
JPanel North2=new JPanel(new FlowLayout());
LeftNorth.add(North2);
North2.add(PriorMonth=new JButton(new ImageIcon("../images/prior.gif")));
PriorMonth.addActionListener(this);
PriorMonth.setActionCommand("prior");
priormonth=month;
prioryear=year;
SwitchMonth(month);
North2.add(ShowDate = new JLabel(SwitchMonth+" "+","+" "+String.valueOf(year),SwingConstants.CENTER));
ShowDate.setForeground(Color.blue);
ShowDate.setFont(new Font("TimesRoman",Font.BOLD,14));
North2.add(NextMonth=new JButton(new ImageIcon("../images/next.gif")));
NextMonth.addActionListener(this);
NextMonth.setActionCommand("next");
//LeftPane_Center
LeftCenter.setLayout(new GridLayout(7,7));
//print title
for(int i=0;i<7;i++)
{
TopBarTitle[i]=new JLabel();
TopBarTitle[i].setText(week[i]);
TopBarTitle[i].setForeground(Color.darkGray);
TopBarTitle[i].setHorizontalAlignment(0);
TopBarTitle[i].setBackground(Color.MAGENTA );
TopBarTitle[i].setBorder(BorderFactory.createRaisedBevelBorder());
LeftCenter.add(TopBarTitle[i]);
}
//print screen and add listene
for(int i=0;i<42;i++)
{
ShowDays[i]=new JTextField();
ShowDays[i].addMouseListener(this);
ShowDays[i].setEditable(false);
LeftCenter.add(ShowDays[i]);
}
//print the body of month
PrintMonth(year,month,day);
//the layout about right of jpane
RightPane = new JPanel(new BorderLayout());
JPanel RightCenter = new JPanel();
JPanel RightNorth = new JPanel();
JPanel RightSouth = new JPanel(new FlowLayout());
RightPane.add(RightNorth,BorderLayout.NORTH);
RightPane.add(RightCenter,BorderLayout.CENTER);
RightPane.add(RightSouth,BorderLayout.SOUTH);
RightNorth.add(NorthMonthDayYear=new JLabel(">>"+year+","+SwitchMonth+","+day+"<<"));
key=year+"_"+SwitchMonth+"_"+day;
NorthMonthDayYear.setForeground(Color.blue);
NorthMonthDayYear.setFont(new Font("TimesRoman",Font.BOLD,17));
RightCenter.add(CenterText=new JTextArea("please write today‘s things."));
CenterText.setLineWrap(true);
CenterText.setSelectedTextColor(Color.blue);
//CenterText.addActionListener(this);
RightSouth.add(SouthSave=new JButton(" Save "));
SouthSave.setBackground(Color.cyan);
SouthSave.addActionListener(this);
SouthSave.setActionCommand("Save");
RightSouth.add(SouthDelete=new JButton(" Delete "));
SouthDelete.setBackground(Color.cyan);
SouthDelete.addActionListener(this);
SouthDelete.setActionCommand("Delete");
this.year = year;
this.month = month;
this.day = day;
///add container to put LeftPane and RightPane
Container con=getContentPane();
JSplitPane split=new JSplitPane(JSplitPane.HORIZONTAL_SPLIT,RightPane,LeftPane);//gai bian
con.add(split,BorderLayout.CENTER);
con.validate();
//add CenterPane to notepad
//CenterPane initialize
setFont(new Font("Times New Roman",Font.PLAIN,12));
JScrollPane scrollpane = new JScrollPane(CenterText);
scrollpane.setPreferredSize(new Dimension(220,250));
RightCenter.add(scrollpane);
//init randomaccessfile
}
//switch the month in english
public void SwitchMonth(int month)
{
switch(month)
{
case 1:
SwitchMonth="Jan";break;
case 2:
SwitchMonth="Feb";break;
case 3:
SwitchMonth="Mar";break;
case 4:
SwitchMonth="Apr";break;
case 5:
SwitchMonth="May";break;
case 6:
SwitchMonth="Jun";break;
case 7:
SwitchMonth="Jul";break;
case 8:
SwitchMonth="Aug";break;
case 9:
SwitchMonth="Sep";break;
case 10:
SwitchMonth="Qct";break;
case 11:
SwitchMonth="Nov";break;
case 12:
SwitchMonth="Dec";break;
}
}
//print the body of the month
public void PrintMonth(int year,int month,int day)
{
//Get start day of the week for the first date in the month
int startday = GetStartDay(year,month);
//Get number of days in the month
int dayinmonth = GetNumOfDaysInMonth(year,month);
//Print header
//PrintTitleAndScreen();
//Print body
PrintMonthBody(startday,dayinmonth);
}
//PrintMonth(int year,int month,int day)‘s burden
public void PrintMonth(int year,int month)
{
//Get start day of the week for the first date in the month
int startday = GetStartDay(year,month);
//Get number of days in the month
int dayinmonth = GetNumOfDaysInMonth(year,month);
//Print header
//Print body
PrintMonthBody(startday,dayinmonth);
}
//PrintMonthBody(int startday,int dayinmonth,int day)‘s burden
public void PrintMonthBody(int startday,int dayinmonth)
{
for(int i=startday,n=1;i<startday+dayinmonth;i++)
{
ShowDays[i].setText(""+n);
ShowDays[i].setHorizontalAlignment(0);//let center
if(n==day)
{
ShowDays[i].setForeground(Color.green);
ShowDays[i].setFont(new Font("TimesRoman",Font.BOLD,20));
ShowDays[i].setBackground(Color.DARK_GRAY);
}
else
{
ShowDays[i].setFont(new Font("TimesRoman",Font.BOLD,12));
ShowDays[i].setForeground(Color.white);
ShowDays[i].setBackground(Color.DARK_GRAY);
}
n++;
}
for(int i=0;i<startday;i++)
{
ShowDays[i].setText("");
ShowDays[i].setBackground(Color.DARK_GRAY);
}
for(int i=startday+dayinmonth;i<42;i++)
{
ShowDays[i].setText("");
ShowDays[i].setBackground(Color.DARK_GRAY);
}
}
//judge leapyear is or not
public boolean IsLeapYear(int year)
{
if((year%400==0)||(year%4==0&&year%100!=0))
return true;
else
return false;
}
//judge the start day of a month
public int GetStartDay(int year,int month)
{
//get total number of day since1/1/0000
int startday0001=-32768;
long totalnumofdays=GetTotalNumOfDays(year,month);
//return the start day
return (int)((totalnumofdays+startday0001)%7);
}
//judge the days of a year
public long GetTotalNumOfDays(int year,int month)
{
long total=0;
//get the total days from -32767 to year
for(int i=-32767;i<year;i++)
{
if(IsLeapYear(i))
total=total+366;
else
total=total+365;
}
//Add days from jan to the month prior to the calendar month
for(int i=1;i<month;i++)
total=total+GetNumOfDaysInMonth(year,i);
return total;
}
//judge the days of a month
public int GetNumOfDaysInMonth(int year,int month)
{
if(month==1 || month==3 || month==5 || month==7 || month==8 || month==10 ||month==12)
return 31;
if(month==4 || month==6 || month==9 || month==11)
return 30;
if(month==2)
{
if(IsLeapYear(year))
return 29;
else
return 28;
}
return 0;
}
public void WriteRecord()
{
String content;
content=CenterText.getText();
int n=content.length();
char[] contentarr=new char[n];
try
{
int i=0;
for(i=0;i<n;i++)
{
contentarr[i]=content.charAt(i);
}
File Diary = new File("Diary");
Diary.mkdir();
File myfile=new File("Diary\\"+key+".txt");
FileWriter Record=new FileWriter(myfile);
for(i=0;i<contentarr.length;i++)
{
Record.write(contentarr[i]);
}
Record.close();
JOptionPane.showMessageDialog(this,"Save success!");
}
catch(IOException ex){}
}
public void ReadRecord()
{
try
{
String content="";
File myfile=new File("Diary\\"+key+".txt");
FileReader Record=new FileReader(myfile);
if(myfile.exists())
{
long b=myfile.length();
//char[] contentarr=new char[b];
int n=JOptionPane.showConfirmDialog(this,"Today has logs,are you read?","Confirm",JOptionPane.YES_NO_CANCEL_OPTION);
if(n==JOptionPane.YES_OPTION)
{
while((b=Record.read())!=-1)
{
content=content+(char)b;
}
CenterText.setText(content);
}
}
Record.close();
}
catch(IOException ex)
{
CenterText.setText("Today has not logs.");
}
}
public void DeleteFile()
{
String filepath="Diary\\"+key+".txt";
File myfile=new File(filepath);
int n=JOptionPane.showConfirmDialog(this,"Are you sure delete the file?","Confirm",JOptionPane.YES_NO_CANCEL_OPTION);
if(n==JOptionPane.YES_OPTION)
{
if(myfile.exists())
{
Runtime rt = Runtime.getRuntime();
try
{
rt.exec("cmd /c del "+filepath);
}
catch (IOException e)
{
e.printStackTrace();
}
JOptionPane.showMessageDialog(this,"Delete successed!");
CenterText.setText("Today has not logs.");
}
else
{
JOptionPane.showMessageDialog(this,"The file doesn‘t exist,delete failured!");
}
}
}
public void AboutActionListenerWay()
{
try
{
prioryear=Integer.parseInt(YearText.getText());
priormonth=MonthCombobox.getSelectedIndex()+1;
String StrYearText=YearText.getText();
changeyearmessage=Integer.parseInt(StrYearText);
changemonthmessage=MonthCombobox.getSelectedIndex()+1;
monthafterquery=changemonthmessage;
yearafterquery=changeyearmessage;
SwitchMonth(changemonthmessage);
ShowDate.setText(SwitchMonth+" "+","+" "+String.valueOf(changeyearmessage));
PrintMonth(changeyearmessage,changemonthmessage);
ischange=true;
}
catch(Exception ee)
{
JOptionPane.showMessageDialog(this,"The input format doesn‘t match","Error",JOptionPane.ERROR_MESSAGE);
}
}
//do actonlistener things
public void actionPerformed(ActionEvent eAction)
{
String ActionCommand=eAction.getActionCommand();
//Handle button events
if(eAction.getSource() instanceof JButton)
{
//Handle the query
if("Query".equals(ActionCommand))
{
try
{
AboutActionListenerWay();
}
catch(Exception ee)
{
JOptionPane.showMessageDialog(this,"The input format doesn‘t match","Error",JOptionPane.ERROR_MESSAGE);
}
}
//Handle prior month
if("prior".equals(ActionCommand))
{
if(priormonth>1)
{
priormonth=priormonth-1;
}
else
{
priormonth=12;
prioryear=prioryear-1;
}
PrintMonth(prioryear,priormonth,day);
SwitchMonth(priormonth);
ShowDate.setText(SwitchMonth+" , "+prioryear);
NorthMonthDayYear.setText(">>"+SwitchMonth+","+day+","+prioryear+"<<");
key=prioryear+"_"+SwitchMonth+"_"+day;
ischange_priornext=true;
}
//Handle next month
if("next".equals(ActionCommand))
{
if(priormonth<12)
{
priormonth=priormonth+1;
}
else
{
priormonth=1;
prioryear=prioryear+1;
}
PrintMonth(prioryear,priormonth,day);
SwitchMonth(priormonth);
ShowDate.setText(SwitchMonth+" , "+prioryear);
NorthMonthDayYear.setText(">>"+SwitchMonth+","+day+","+prioryear+"<<");
key=prioryear+"_"+SwitchMonth+"_"+day;
ischange_priornext=true;
}
//Handle the "Go to today"
if("Go to today".equals(ActionCommand))
{
PrintMonth(year,month,day);
YearText.setText("");
MonthCombobox.setSelectedIndex(0);
SwitchMonth(month);
ShowDate.setText(SwitchMonth+" "+","+" "+String.valueOf(year));
NorthMonthDayYear.setText(">>"+year+SwitchMonth+","+day+","+"<<");
key=year+"_"+SwitchMonth+"_"+day;
priormonth=month;
prioryear=year;
ischange=false;
}
//Handle the "Save"
if("Save".equals(ActionCommand))
{
WriteRecord();
}
if("Delete".equals(ActionCommand))
{
DeleteFile();
}
}
//Handle JTextField events
if(eAction.getSource() instanceof JTextField)
{
//Handle the query
AboutActionListenerWay();
}
}
public void mousePressed(MouseEvent eMouse)
{
int day;
try
{
JTextField source=(JTextField)eMouse.getSource();
day=Integer.parseInt(source.getText());
if(ischange==false)
{
if(ischange_priornext==false)
{
NorthMonthDayYear.setText(">>"+SwitchMonth+","+day+","+year+"<<");
key=year+"_"+SwitchMonth+"_"+day;
}
else
{
NorthMonthDayYear.setText(">>"+SwitchMonth+","+day+","+prioryear+"<<");
key=prioryear+"_"+SwitchMonth+"_"+day;
}
}
else
// JTextField source=(JTextField)eMouse.getSource();
//day=Integer.parseInt(source.getText());
if(ischange_priornext==false)
{
SwitchMonth(changemonthmessage);
NorthMonthDayYear.setText(">>"+SwitchMonth+","+day+","+changeyearmessage+"<<");
key=changeyearmessage+"_"+SwitchMonth+"_"+day;
}
else
{
SwitchMonth(priormonth);
NorthMonthDayYear.setText(">>"+SwitchMonth+","+day+","+prioryear+"<<");
key=prioryear+"_"+SwitchMonth+"_"+day;
}
ReadRecord();
}
catch(Exception ee)
{
}
}
public void mouseClicked(MouseEvent e){}
public void mouseReleased(MouseEvent e){}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void SaveLog(int year,int month,int day){}
public static void main(String[] args) throws Exception
{
Calendar calendar=Calendar.getInstance();
int y=calendar.get(Calendar.YEAR);
int m=calendar.get(Calendar.MONTH)+1;
int d=calendar.get(Calendar.DAY_OF_MONTH);
Wannianli frame = new Wannianli(y, m, d);
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setSize(560,300);
frame.setLocation(100,100);
frame.setVisible(true);
frame.setResizable(false);
frame.ReadRecord();
}
}
四、使用说明与运行结果截图
运行结果截图：
五、实践总结
经过这次实验，我发现在操作的过程中我都遇到了很多的困难，同时我也得到了很多的收获的。
在本次试验中，给我印象最为深刻的是程序的编译过程中，从中我学到了许多以前学有学会和没有学到的函数。除此之个还不其它一些函数也得到了巩固。以前总是模模糊糊的，现在心里十分清楚了。对一些类及方法的运用显得只能再课本上看，这次的学习让我从纸上谈兵逐渐的过渡到实践出真知。通过这次课程设计，我进一步加深对基础理论的理解，扩大专业知识面，对收集资料、查阅文献、方案制定等实践方面得到了很好的锻练，促进对所学知识应用能力的提高。同时我渐渐的复习了Java使用方法和编程语法，之后的编程过程也相对得心应手，基本完成了预期计划的要求。
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原文地址：http://www.cnblogs.com/i-love-ww520/p/4820436.html
