日历程序java代码 java编程实现日历记事本

求Java 日历的小程序的源代码

也不知道你具体需求是什么，以前改过一个日历程序，一共四个java类，放在同一个包里。经测试可以运行。

//Start.java

import java.awt.*;

import javax.swing.*;

class Start{

public static void main(String [] args){

DateFrame frame=new DateFrame();

frame.setLocationRelativeTo(frame);

frame.setResizable(false);

frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setVisible(true);

}

}

//DateInfo.java

import java.util.*;

public class DateInfo{

private int mYear, mMonth;

private int mDayOfMonth, mFristWeek;

public DateInfo(int year, int month) throws DateException{

mYear = year;

if (month 0 || month 12){

throw (new DateException());

}

mMonth = month;

mDayOfMonth = getDayOfMonth(mYear, mMonth);

mFristWeek = getFristWeek(mYear, mMonth);

}

private int getDayOfMonth(int year, int month){

int[][] ary = {{0, 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31},

{0, 31, 29, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}};

return (ary[isLeapYear(year)][month]);

}

private int isLeapYear(int year){

if (year % 4 == 0 year % 100 != 0 ||year % 400 == 0){

return (1);

}

else{

return (0);

}

}

private int getFristWeek(int year, int month){

java.util.Calendar cal = Calendar.getInstance();

cal.set(year, month - 1, 1);

return (cal.get(Calendar.DAY_OF_WEEK) - 1);

}

public String toString(){

String str;

str = "\t\t" + mYear + "年" + mMonth + "月\n";

str += "日\t一\t二\t三\t四\t五\t六\n";

int i;

for (i = 1; i = mFristWeek; i++){

str += " \t";

}

for (int j = 1; j = mDayOfMonth; j++, i++){

str +=j+"\t" ;

if (i % 7 == 0){

str += "\n";

}

}

return (str);

}

}

//DateFrame.java

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import java.util.Calendar;

class DateFrame extends JFrame implements Runnable{

Calendar date=Calendar.getInstance();

String[] str={"1","2","3","4","5","6","7","8","9","10","11","12"};

JLabel lblYear=new JLabel("年 ");

JLabel lblMonth=new JLabel("月 ");

JLabel lblDate=new JLabel("现在的时间是:");

JLabel lblShowDate=new JLabel();

// javax.swing.JTextField trxt =new JTextField(10);

// trxt.setHorizontalAlignment(JTextField.RIGHT); //设置文本从右边输入

JComboBox cboMonth=new JComboBox(str);

JComboBox cboYear=new JComboBox();

JTextArea txaShow=new JTextArea();

JPanel pnlNorth=new JPanel();

JPanel pnlSOUTH=new JPanel();

JButton btnShow=new JButton("显示");

JButton btnClose=new JButton("关闭");

JScrollPane jsp=new JScrollPane(txaShow);

Container c=this.getContentPane();

public DateFrame(){

Thread thread=new Thread(this);

thread.start();

this.setTitle("玩玩日历拉!!!");

this.setSize(300,260);

for (int i = 1990; i=2025; i++) {

cboYear.addItem(""+i);

}

cboYear.setSelectedItem(""+(date.get(Calendar.YEAR)));

cboMonth.setSelectedItem(""+(date.get(Calendar.MONTH)+1));

pnlNorth.add(cboYear);

txaShow.setTabSize(4); //设置tab键的距离

txaShow.setForeground(Color.GREEN);

pnlNorth.add(lblYear);

pnlNorth.add(cboMonth);

pnlNorth.add(lblMonth);

pnlNorth.add(lblDate);

pnlNorth.add(lblShowDate);

c.add(pnlNorth,BorderLayout.NORTH);

c.add(jsp);

pnlSOUTH.add(btnShow);

pnlSOUTH.add(btnClose);

c.add(pnlSOUTH,BorderLayout.SOUTH);

btnShow.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

int year=Integer.parseInt((String)cboYear.getSelectedItem());

int month=Integer.parseInt((String)cboMonth.getSelectedItem());

try {

DateInfo date=new DateInfo(year,month);

txaShow.setText(""+date);

}

catch (DateException ex) {

ex.printStackTrace();

}

}

});

btnClose.addActionListener(new ActionListener(){

public void actionPerformed(ActionEvent e){

System.exit(0);

}

});

}

public void run(){

try {

while(true){

Thread.sleep(1000);

int hour=date.get(Calendar.HOUR);

int minute=date.get(Calendar.MINUTE);

int second=date.get(Calendar.SECOND);

String str=hour+":"+minute+":"+second;

lblShowDate.setText(str);

//this.repaint();

}

}

catch (Exception ex) {

ex.printStackTrace();

}

}

}

//DateException.java

public class DateException extends Exception{

public DateException(){

super("日期数据不合法.");

}

}

显示系统当前日历和查询日历，java代码，亲们，

MainFrame.java是显示日历程序，Clock.java是日历计算程序（可以不要）。

编译后运行MainFrame这个类即可。

swing窗口显示万年历，jdk1.4以上环境编译运行。

package

org.test;import

java.awt.BorderLayout;import

java.awt.Color;import

java

怎么用java写日历

以下是两个类日历程序java代码，请楼主分别存成两个java文件:

其中

MainFrame.java是显示日历程序日历程序java代码，Clock.java是日历计算程序。编译后运行MainFrame这个类即可。

1.MainFrame.java

---

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.GridLayout;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.sql.Date;

import java.util.Calendar;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

public class MainFrame extends JFrame {

/** *//**

*

*/

private static final long serialVersionUID = 1L;

JPanel panel = new JPanel(new BorderLayout());

JPanel panel1 = new JPanel();

JPanel panel2 = new JPanel(new GridLayout(7, 7));

JPanel panel3 = new JPanel();

JLabel[] label = new JLabel[49];

JLabel y_label = new JLabel("年份");

JLabel m_label = new JLabel("月份");

JComboBox com1 = new JComboBox();

JComboBox com2 = new JComboBox();

int re_year, re_month;

int x_size, y_size;

String year_num;

Calendar now = Calendar.getInstance(); // 实例化Calendar

MainFrame() {

super("万年历");

setSize(300, 350);

x_size = (int) (Toolkit.getDefaultToolkit().getScreenSize().getWidth());

y_size = (int) (Toolkit.getDefaultToolkit().getScreenSize().getHeight());

setLocation((x_size - 300) / 2, (y_size - 350) / 2);

setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

panel1.add(y_label);

panel1.add(com1);

panel1.add(m_label);

panel1.add(com2);

for (int i = 0; i 49; i++) {

label[i] = new JLabel("", JLabel.CENTER);// 将显示的字符设置为居中

panel2.add(label[i]);

}

panel3.add(new Clock(this));

panel.add(panel1, BorderLayout.NORTH);

panel.add(panel2, BorderLayout.CENTER);

panel.add(panel3, BorderLayout.SOUTH);

panel.setBackground(Color.white);

panel1.setBackground(Color.white);

panel2.setBackground(Color.white);

panel3.setBackground(Color.white);

Init();

com1.addActionListener(new ClockAction());

com2.addActionListener(new ClockAction());

setContentPane(panel);

setVisible(true);

setResizable(false);

}

class ClockAction implements ActionListener {

public void actionPerformed(ActionEvent arg0) {

int c_year, c_month, c_week;

c_year = Integer.parseInt(com1.getSelectedItem().toString()); // 得到当前所选年份

c_month = Integer.parseInt(com2.getSelectedItem().toString()) - 1; // 得到当前月份日历程序java代码，并减1,计算机中的月为0－11

c_week = use(c_year, c_month); // 调用函数use日历程序java代码，得到星期几

Resetday(c_week, c_year, c_month); // 调用函数Resetday

}

}

public void Init() {

int year, month_num, first_day_num;

String log[] = { "日", "一", "二", "三", "四", "五", "六" };

for (int i = 0; i 7; i++) {

label[i].setText(log[i]);

}

for (int i = 0; i 49; i = i + 7) {

label[i].setForeground(Color.red); // 将星期日的日期设置为红色

}

for (int i = 6; i 49; i = i + 7) {

label[i].setForeground(Color.green);// 将星期六的日期设置为绿色

}

for (int i = 1; i 10000; i++) {

com1.addItem("" + i);

}

for (int i = 1; i 13; i++) {

com2.addItem("" + i);

}

month_num = (int) (now.get(Calendar.MONTH)); // 得到当前时间的月份

year = (int) (now.get(Calendar.YEAR)); // 得到当前时间的年份

com1.setSelectedIndex(year - 1); // 设置下拉列表显示为当前年

com2.setSelectedIndex(month_num); // 设置下拉列表显示为当前月

first_day_num = use(year, month_num);

Resetday(first_day_num, year, month_num);

}

public int use(int reyear, int remonth) {

int week_num;

now.set(reyear, remonth, 1); // 设置时间为所要查询的年月的第一天

week_num = (int) (now.get(Calendar.DAY_OF_WEEK));// 得到第一天的星期

return week_num;

}

@SuppressWarnings("deprecation")

public void Resetday(int week_log, int year_log, int month_log) {

int month_day_score; // 存储月份的天数

int count;

month_day_score = 0;

count = 1;

Date date = new Date(year_log, month_log + 1, 1); // now

Calendar cal = Calendar.getInstance();

cal.setTime(date);

cal.add(Calendar.MONTH, -1); // 前个月

month_day_score = cal.getActualMaximum(Calendar.DAY_OF_MONTH);// 最后一天

for (int i = 7; i 49; i++) { // 初始化标签

label[i].setText("");

}

week_log = week_log + 6; // 将星期数加6，使显示正确

month_day_score = month_day_score + week_log;

for (int i = week_log; i month_day_score; i++, count++) {

label[i].setText(count + "");

}

}

public static void main(String[] args) {

JFrame.setDefaultLookAndFeelDecorated(true);

new MainFrame();

}

}

2.Clock.java

-----

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.GridLayout;

import java.awt.Toolkit;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.sql.Date;

import java.util.Calendar;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

//显示时间的类：Clock

/** *//**

* Clock.java

* Summary 数字时间显示

* Created on

* @author

* remark

*/

import java.awt.Canvas;

import java.awt.Color;

import java.awt.Font;

import java.awt.Graphics;

import java.text.SimpleDateFormat;

import java.util.Calendar;

class Clock extends Canvas implements Runnable{

/** *//**

*

*/

private static final long serialVersionUID = 3660124045489727166L;

MainFrame mf;

Thread t;

String time;

public Clock(MainFrame mf){

this.mf=mf;

setSize(280,40);

setBackground(Color.white);

t=new Thread(this); //实例化线程

t.start(); //调用线程

}

public void run(){

while(true){

try{

Thread.sleep(1000); //休眠1秒钟

}catch(InterruptedException e){

System.out.println("异常");

}

this.repaint(100);

}

}

public void paint(Graphics g){

Font f=new Font("宋体",Font.BOLD,16);

SimpleDateFormat SDF=new SimpleDateFormat("yyyy'年'MM'月'dd'日'HH:mm:ss");//格式化时间显示类型

Calendar now=Calendar.getInstance();

time=SDF.format(now.getTime()); //得到当前日期和时间

g.setFont(f);

g.setColor(Color.orange);

g.drawString(time,45,25);

}

}

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