java实现时钟日历代码 java时钟程序代码

用java编程实现 2016年12月份的日历怎么写？

用Java实现的日历程序如下(图形界面程序)

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Font;

import java.awt.GridLayout;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import java.util.Calendar;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

public class CCI extends JFrame implements ActionListener{

 JButton jb1=new JButton("");

 JButton jb2=new JButton("");

 JButton jb3=new JButton("");

 JButton jb4=new JButton("");

 JPanel jp1=new JPanel();

 JPanel jp2=new JPanel();

 JPanel jp3=new JPanel();

 JPanel jp4=new JPanel();

 JLabel jl1=new JLabel();

 JLabel jl2=new JLabel();

 JLabel[]jl=new JLabel[49];

 String []week={"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};

 Calendar c=Calendar.getInstance();

 int year,month,day;

 int nowyear,nowmonth,nowday;

 CCI(){

  super("简单日历");

  nowyear=c.get(Calendar.YEAR);

  nowmonth=c.get(Calendar.MONTH)+1;

  nowday=c.get(Calendar.DAY_OF_MONTH);

  year=nowyear;

  month=nowmonth;

  day=nowday;

  String s=year+"年"+month+"月";

  jl1.setForeground(Color.RED);

  jl1.setFont(new Font(null,Font.BOLD,20));

  jl1.setText(s);

  jb1.addActionListener(this);

  jb2.addActionListener(this);

  jb3.addActionListener(this);

  jb4.addActionListener(this);

  jp1.add(jb1);jp1.add(jb2);jp1.add(jl1);jp1.add(jb3);jp1.add(jb4);

  jp2.setLayout(null);

  createMonthPanel();

  jp2.add(jp3);

  jl2.setFont(new Font(null,Font.BOLD,20));

  jl2.setText("今天是"+nowyear+"年"+nowmonth+"月"+nowday+"日");

  jp4.add(jl2);

  add(jp1,BorderLayout.NORTH);

  add(jp2,BorderLayout.CENTER);

  add(jp4,BorderLayout.SOUTH);

  setSize(500,500);

  setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

  setLocationRelativeTo(null);

  setVisible(true);

 }

 @Override

 public void actionPerformed(ActionEvent ae) {

  if(ae.getSource()==jb1){

   year=year-1;

   String s=year+"年"+month+"月";

   jl1.setText(s);

   jp3.removeAll();

   createMonthPanel();

   jp3.validate();

  }

  if(ae.getSource()==jb2){

   if(month==1){

    year=year-1;

    month=12;

   }else{

    month=month-1;

   }

   String s=year+"年"+month+"月";

   jl1.setText(s);

   jp3.removeAll();

   createMonthPanel();

   jp3.validate();

  }

  if(ae.getSource()==jb3){

   if(month==12){

    year=year+1;

    month=1;

   }else{

    month=month+1;

   }

   String s=year+"年"+month+"月";

   jl1.setText(s);

   jp3.removeAll();

   createMonthPanel();

   jp3.validate();

  }

  if(ae.getSource()==jb4){

   year=year+1;

   String s=year+"年"+month+"月";

   jl1.setText(s);

   jp3.removeAll();

   createMonthPanel();

   jp3.validate();

  }

 }

 public static void main(String[] args) {

  new CCI();

 }

 public int getMonthDays(int year, int month) { 

  switch (month) {

   case 1: 

   case 3: 

   case 5: 

   case 7:

   case 8: 

   case 10: 

   case 12:

    return 31; 

   case 2: 

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

     return 29; 

    } else { 

     return 28; 

    } 

   default: 

    return 30; 

  } 

 } 

 public void createMonthPanel(){

  c.set(year, month-1, getMonthDays(year,month));

  int weekOfMonth=c.get(Calendar.WEEK_OF_MONTH);

  if(weekOfMonth==6){

   jp3.setLayout(new GridLayout(7,7));

   jp3.setBounds(50, 20, 420, 350);

  }else{

   jp3.setLayout(new GridLayout(6,7));

   jp3.setBounds(50, 20, 420, 300);

  }

  jp3.setBorder(BorderFactory.createEtchedBorder());

  for(int i=0;i7;i++){

   jl[i]=new JLabel(week[i],JLabel.CENTER);

   jl[i].setFont(new Font(null,Font.BOLD,20));

   jl[i].setBorder(BorderFactory.createEtchedBorder());

   jp3.add(jl[i]);

  }

  c.set(year, month-1, 1);

  int emptyFirst=c.get(Calendar.DAY_OF_WEEK)-1;

  int daysOfMonth=getMonthDays(year,month);

  for(int i=6+emptyFirst;i=7;i--){

   int intyear=year;

   int intmonth=month;

   if(intmonth==1){

    intyear=intyear-1;

    intmonth=12;

   }else{

    intmonth=intmonth-1;

   }

   int intdays=getMonthDays(intyear,intmonth);

   jl[i]=new JLabel((intdays+7-i)+"",JLabel.CENTER);

   jl[i].setFont(new Font(null,Font.BOLD,20));

   jl[i].setForeground(Color.GRAY);

   jl[i].setBorder(BorderFactory.createEtchedBorder());

   jp3.add(jl[i]);

  }

  for(int i=7+emptyFirst;idaysOfMonth+7+emptyFirst;i++){

   jl[i]=new JLabel((i-7-emptyFirst+1)+"",JLabel.CENTER);

   jl[i].setFont(new Font(null,Font.BOLD,20));

   if((i+1)%7==0 || (i+1)%7==1){

    jl[i].setForeground(Color.RED);

   }else if((i-7-emptyFirst+1)==nowdaymonth==nowmonthyear==nowyear)

    jl[i].setForeground(Color.BLUE);

   else

    jl[i].setForeground(Color.BLACK);

   

   jl[i].setBorder(BorderFactory.createEtchedBorder());

   jp3.add(jl[i]);

  }

  if(weekOfMonth==6)

   for(int i=48;i=daysOfMonth+emptyFirst+7;i--){

    jl[i]=new JLabel((49-i)+"",JLabel.CENTER);

    jl[i].setFont(new Font(null,Font.BOLD,20));

    jl[i].setForeground(Color.GRAY);

    jl[i].setBorder(BorderFactory.createEtchedBorder());

    jp3.add(jl[i]);

   }

  else

   for(int i=41;i=daysOfMonth+emptyFirst+7;i--){

    jl[i]=new JLabel((42-i)+"",JLabel.CENTER);

    jl[i].setFont(new Font(null,Font.BOLD,20));

    jl[i].setForeground(Color.GRAY);

    jl[i].setBorder(BorderFactory.createEtchedBorder());

    jp3.add(jl[i]);

   }

 }

}

运行结果

相关问答

Q1: JAVA画时钟代码

import java.awt.*;

import java.awt.event.*;

import javax.swing.*;

import sun.util.calendar.Gregorian;

import java.util.Calendar;

import java.util.GregorianCalendar;

public class ClockPointer extends JFrame{

        int x, y, x0, y0, r, h, olds_x, olds_y, oldm_x, oldm_y, oldh_x, oldh_y, 

        ss,mm, hh, old_m, old_h, ang;

        final double RAD = Math.PI/180;

    public ClockPointer(){

        super("Java时钟");

        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

        Image image = getToolkit().getImage("clock.gif");

        setIconImage(image);

        setSize(400,400);

        setBackground(Color.white);

        //setLocation(300,150);

        this.setLocationRelativeTo(null);

        setResizable(true);

        int delay = 1000;

        //创建一个监听事件

        setVisible(true);

        ActionListener drawClock = new ActionListener(){

            public void actionPerformed(ActionEvent evt){

                repaint();

            }

        };

        //创建一个时间计数器，每一秒触发一次

        new Timer(delay, drawClock).start();

    }

    

    java.text.SimpleDateFormat fmTime = new java.text.SimpleDateFormat("HH:mm:ss");

    //绘制图形

    public void paint(Graphics g){

        super.paint(g);

        g.setFont(null);

        Graphics2D g2D = (Graphics2D)g;

        

        Insets insets = getInsets();

        int L = insets.left/2, T = insets.top/2;

        h = getSize().height;

        g.setColor(Color.white);

        //画圆

        g2D.setStroke(new BasicStroke(2.0f));

        g.setColor(Color.gray);

        g.drawOval(L+40, T+40, h-80, h-80);

        r = h/2 - 40;

        x0 = 40 + r - 5 + L;

        y0 = 40 + r - 5 - T;

        ang = 60;

        //绘制时钟上的12个字

        for(int i = 1;i = 12;i ++){

            x = (int)((r+10)*Math.cos(RAD*ang)+x0);

            y = (int)((r+10)*Math.sin(RAD*ang)+y0);

            g.setColor(Color.black);

            g.drawString(""+i, x, h-y);

            ang -=30;

        }

        //获得现在的时间

        Calendar now = new GregorianCalendar();

        int nowh = now.get(Calendar.HOUR_OF_DAY);

        int nowm = now.get(Calendar.MINUTE);

        int nows = now.get(Calendar.SECOND);

        

        String st=fmTime.format(now.getTime());

        //在窗体上显示时间

        g.setColor(Color.pink);

        g.fillRect(L, T, 50, 28);

        g.setColor(Color.blue);

        g.drawString(st,L+2,T+26);

        

        //计算时间与度数的关系

        ss = 90 - nows*6;

        mm = 90 - nowm*6;

        hh = 90 - nowh*30 - nowm/2;

        x0 = r+40+L;

        y0 = r+40+T;

        g2D.setStroke(new BasicStroke(1.2f));

        //擦除秒针

        //if(olds_x  0){

        //    g.setColor(getBackground());

        //    // g.setColor(Color.gray);

        //    g.drawLine(x0, y0, olds_x, h-olds_y); // (?)

        //}

        //绘制秒针

        x = (int)(r*0.9*Math.cos(RAD*ss))+x0;

        y = (int)(r*0.9*Math.sin(RAD*ss))+y0-2*T;

        g.setColor(Color.yellow);

        g.drawLine(x0, y0, x, h-y);

        olds_x = x;

        olds_y = y;

        g2D.setStroke(new BasicStroke(2.2f));

        //擦除分针

        //if(old_m!=mm){

        //    g.setColor(getBackground());

        //    g.drawLine(x0,y0,oldm_x,h-oldm_y);

        //}

        //绘制分针

        x = (int)(r*0.7*Math.cos(RAD*mm))+x0;

        y = (int)(r*0.7*Math.sin(RAD*mm))+y0-2*T;

        g.setColor(Color.green);

        g.drawLine(x0,y0,x,h-y);

        oldm_x = x;

        oldm_y = y;

        old_m = mm;

        g2D.setStroke(new BasicStroke(3.2f));

        //擦除时针

        //if(old_h!=hh){

        //    g.setColor(getBackground());

        //    g.drawLine(x0,y0,oldh_x,h-oldh_y);

        //}

        //绘制时针

        x = (int)(r*0.5*Math.cos(RAD*hh))+x0;

        y = (int)(r*0.5*Math.sin(RAD*hh))+y0-2*T;

        g.setColor(Color.red);

        g.drawLine(x0,y0,x,h-y);

        oldh_x = x;

        oldh_y = y;

        old_h = hh;

    }

    public static void main(String[] args){

        new ClockPointer();

    }

}

//整理一下

Q2: Java做日历，日历格式参考Windows系统托盘的日期和时间程序。

import java.text.DateFormat;

import java.text.ParseException;

import java.util.Calendar;

import java.util.Date;

import java.util.GregorianCalendar;

import java.util.Scanner;

public class Game {

public void theCalendar(String str) throws ParseException {

Date date = DateFormat.getDateInstance().parse(str);

Calendar c = new GregorianCalendar();

c.setTime(date);

int year = c.get(Calendar.YEAR); // 返回年

int month = c.get(Calendar.MONTH); // 返回月

int today = c.get(Calendar.DAY_OF_MONTH);// 返回日

System.out.println("日\t一\t二\t三\t四\t五\t六");

c.set(Calendar.DAY_OF_MONTH, 1); //把当前日期设置为1号

int a = c.get(Calendar.DAY_OF_WEEK);//返回当前月份1号是星期几

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

System.out.print("\t");

}

while(c.get(Calendar.MONTH) == month) {

if(c.get(Calendar.DAY_OF_MONTH) == today) {

System.out.printf("%2d●\t", c.get(Calendar.DAY_OF_MONTH));

} else {

System.out.printf("%2d\t", c.get(Calendar.DAY_OF_MONTH));

}

if(c.get(Calendar.DAY_OF_WEEK) == 7) {

System.out.println();

}

c.add(Calendar.DAY_OF_MONTH, 1);

}

}

public static void main(String[] args) throws ParseException {

Scanner sc = new Scanner(System.in);

System.out.println("请按照如下格式输入字符串1990-09-07");

String str = sc.nextLine();

new Game().theCalendar(str);

}

}

Q3: 怎么用java写日历

以下是两个类，请楼主分别存成两个java文件:

其中

MainFrame.java是显示日历程序，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，并减1,计算机中的月为0－11

c_week = use(c_year, c_month); // 调用函数use，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);

}

}

Q4: java编写日历

我给你贴上我在java核心技术中看到的代码吧,当然没有输入年份和月份,是按照当前时间创建的,写有我写的注释,应该能看的懂

/*

* 2012年5月13日10:37:58

* 日历程序

* Function:

* 显示当前月份的日历

* 总结

* 1. 0-11分别代表1-12月

* 1-7分别代表周日-周六

* 2. 使用GregorianCalendar对象的get方法（参数）获取月，日，年等信息

* 3.

*/

import java.text.DateFormatSymbols;

import java.util.*;

public class CalendarTest {

public static void main(String[] args) {

//construct d as current date构造一个日期

GregorianCalendar d = new GregorianCalendar();

//获取今天是这个月的第几天

int today = d.get(Calendar.DAY_OF_MONTH); //Calendar.DAY_OF_MONTH作为参数调用，得到今天是这个月的第几天

int month = d.get(Calendar.MONTH); //月份

d.set(Calendar.DAY_OF_MONTH, 1); //设置d的日期是本月的1号

int weekDay = d.get(Calendar.DAY_OF_WEEK); //获取当天位于本星期的第几天，也就确定了星期几，值的范围是1-7

int firstDayOfWeek = d.getFirstDayOfWeek(); //获取一星期的第一天,我们得到的是Calendar.SUNDAY,因为我们一星期的第一天是周日

int indent = 0; //为了定位本月第一天，定义索引

while (weekDay != firstDayOfWeek) {

//注意，月份用0-11代表1-12月，为了清晰起见，使用常量代替，下面获取月份得到的实际是当前月-1的值，所以我们要加1

//System.out.printf("当前星期的第%d天,位于当月的第%d天, 现在是%d月\n",

// weekDay, d.get(Calendar.DAY_OF_MONTH), d.get(Calendar.MONTH)+1); //Test Code

indent++;//缩进个数+1

d.add(Calendar.DAY_OF_MONTH, -1);//当前天数-1，如果现在是1号，则执行本条代码后，时间变为上一个月最后一天

weekDay = d.get(Calendar.DAY_OF_WEEK); //重新获取当天位于本星期的第几天

}

String[] weekDayNames = new DateFormatSymbols().getShortWeekdays();//获取简短形式的星期字符串数组

//System.out.println(weekDayNames.length);getShortWeekdays()得到的数组的长度是8，下标为0的是没有值1为星期日...7为星期六

//注释代码1

//Java核心技术的代码

/*

do {

//System.out.printf("%4s", weekDayNames[weekDay]); //经过上面定义索引，weekDay代表的是本星期日

d.add(Calendar.DAY_OF_MONTH, 1); //天数加1

weekDay = d.get(Calendar.DAY_OF_WEEK); //重新获得weekDay的值

} while (weekDay != firstDayOfWeek); //当循环完一个星期后，这里判断不成立，退出循环

*/

//我写的代码，替换上面注释代码1

for (int i=1; iweekDayNames.length; i++)//打印星期标题

System.out.printf("%3s\t", weekDayNames[i]);//引号内是一个全角的空格，因为是中文版，不是书上英文环境,中文和空格对于不上,这里我们用\t解决

//System.out.printf("%3s　", weekDayNames[i]); //方式2

System.out.println();//换行

for (int i=1; i=indent; i++)//确定一星期的一天位置，利用上面indent

System.out.printf("\t");//如用方式2，则这里内容是四个全角空格

//实现输出日期

d.set(Calendar.MONTH, month);

d.set(Calendar.DAY_OF_MONTH, 1);

do {

//print day

int day = d.get(Calendar.DAY_OF_MONTH);

System.out.printf("%3d", day);

if (day == today)

System.out.print("*");

System.out.print("\t");

d.add(Calendar.DATE, 1);//天数加1

weekDay = d.get(Calendar.DAY_OF_WEEK);//刷新weekDay

if (weekDay == firstDayOfWeek) //如果这天等于星期天则换行

System.out.println();

} while (d.get(Calendar.MONTH) == month);

}

}

Q5: JAVA日历代码，怎么做？

import java.util.Date;

import java.util.Calendar;

import java.text.DateFormat;

import java.text.SimpleDateFormat;

import java.text.ParseException;

import java.awt.Color;

import java.awt.Font;

import java.awt.Point;

import java.awt.Dimension;

import java.awt.BorderLayout;

import java.awt.FlowLayout;

import java.awt.GridLayout;

import java.awt.Cursor;

import java.awt.event.ActionEvent;

import java.awt.event.ActionListener;

import javax.swing.JButton;

import javax.swing.JDialog;

import javax.swing.JPanel;

import javax.swing.JLabel;

import javax.swing.JSpinner;

import javax.swing.SpinnerNumberModel;

import javax.swing.SwingUtilities;

import javax.swing.SwingConstants;

import javax.swing.event.ChangeListener;

import javax.swing.event.ChangeEvent;

import javax.swing.border.LineBorder;

/**

* @company:NEUSOFT

* @Title:日期选择控件

* @Description:在原有基础上修改了以下内容java实现时钟日历代码：

* 1. 将容器由Frame改为了Dialogjava实现时钟日历代码，以便在基于对话框的程序中也能够使用

* 2. 将最小日期由1980改为了1950java实现时钟日历代码，考虑到目前球员的出生日期可能早于1980年

* 3. 将初始显示格式设置为 yyyy年MM月dd日 格式，原有的小时去掉了，不适合于出生日期字段

*/

public class DateChooserJButton extends JButton {

private DateChooser dateChooser = null;

private String preLabel = "";

public DateChooserJButton() {

this(getNowDate());

}

public DateChooserJButton(SimpleDateFormat df, String dateString) {

this();

setText(df, dateString);

}

public DateChooserJButton(Date date) {

this("", date);

}

public DateChooserJButton(String preLabel, Date date) {

if (preLabel != null)

this.preLabel = preLabel;

setDate(date);

setBorder(null);

setCursor(new Cursor(Cursor.HAND_CURSOR));

addActionListener(new ActionListener() {

public void actionPerformed(ActionEvent e) {

if (dateChooser == null)

dateChooser = new DateChooser();

Point p = getLocationOnScreen();

p.y = p.y + 30;

dateChooser.showDateChooser(p);

}

});

}

private static Date getNowDate() {

return Calendar.getInstance().getTime();

}

private static SimpleDateFormat getDefaultDateFormat() {

return new SimpleDateFormat("yyyy年MM月dd日");

}

// 覆盖父类的方法

public void setText(String s) {

Date date;

try {

date = getDefaultDateFormat().parse(s);

} catch (ParseException e) {

date = getNowDate();

}

setDate(date);

}

public void setText(SimpleDateFormat df, String s) {

Date date;

try {

date = df.parse(s);

} catch (ParseException e) {

date = getNowDate();

}

setDate(date);

}

public void setDate(Date date) {

super.setText(preLabel + getDefaultDateFormat().format(date));

}

public Date getDate() {

String dateString = this.getText().substring(preLabel.length());

try {

return getDefaultDateFormat().parse(dateString);

} catch (ParseException e) {

return getNowDate();

}

}

public String getDateString()

{

Date birth =getDate();

DateFormat formatDate = new SimpleDateFormat("yyyy-MM-dd");

return formatDate.format(birth).toString();

//return this.getText().substring(preLabel.length());

}

// 覆盖父类的方法使之无效

//public void addActionListener(ActionListener listener) {

//}

private class DateChooser extends JPanel implements ActionListener,

ChangeListener {

int startYear = 1950; // 默认【最小】显示年份

int lastYear = 2050; // 默认【最大】显示年份

int width = 200; // 界面宽度

int height = 200; // 界面高度

Color backGroundColor = Color.gray; // 底色

// 月历表格配色----------------//

Color palletTableColor = Color.white; // 日历表底色

Color todayBackColor = Color.orange; // 今天背景色

Color weekFontColor = Color.blue; // 星期文字色

Color dateFontColor = Color.black; // 日期文字色

Color weekendFontColor = Color.red; // 周末文字色

// 控制条配色------------------//

Color controlLineColor = Color.pink; // 控制条底色

Color controlTextColor = Color.white; // 控制条标签文字色

Color rbFontColor = Color.white; // RoundBox文字色

Color rbBorderColor = Color.red; // RoundBox边框色

Color rbButtonColor = Color.pink; // RoundBox按钮色

Color rbBtFontColor = Color.red; // RoundBox按钮文字色

JDialog dialog;

JSpinner yearSpin;

JSpinner monthSpin;

JSpinner hourSpin;

JButton[][] daysButton = new JButton[6][7];

DateChooser() {

setLayout(new BorderLayout());

setBorder(new LineBorder(backGroundColor, 2));

setBackground(backGroundColor);

JPanel topYearAndMonth = createYearAndMonthPanal();

add(topYearAndMonth, BorderLayout.NORTH);

JPanel centerWeekAndDay = createWeekAndDayPanal();

add(centerWeekAndDay, BorderLayout.CENTER);

}

private JPanel createYearAndMonthPanal() {

Calendar c = getCalendar();

int currentYear = c.get(Calendar.YEAR);

int currentMonth = c.get(Calendar.MONTH) + 1;

int currentHour = c.get(Calendar.HOUR_OF_DAY);

JPanel result = new JPanel();

result.setLayout(new FlowLayout());

result.setBackground(controlLineColor);

yearSpin = new JSpinner(new SpinnerNumberModel(currentYear,

startYear, lastYear, 1));

yearSpin.setPreferredSize(new Dimension(48, 20));

yearSpin.setName("Year");

yearSpin.setEditor(new JSpinner.NumberEditor(yearSpin, "####"));

yearSpin.addChangeListener(this);

result.add(yearSpin);

JLabel yearLabel = new JLabel("年");

yearLabel.setForeground(controlTextColor);

result.add(yearLabel);

monthSpin = new JSpinner(new SpinnerNumberModel(currentMonth, 1,

12, 1));

monthSpin.setPreferredSize(new Dimension(35, 20));

monthSpin.setName("Month");

monthSpin.addChangeListener(this);

result.add(monthSpin);

JLabel monthLabel = new JLabel("月");

monthLabel.setForeground(controlTextColor);

result.add(monthLabel);

hourSpin = new JSpinner(new SpinnerNumberModel(currentHour, 0, 23,

1));

hourSpin.setPreferredSize(new Dimension(35, 20));

hourSpin.setName("Hour");

hourSpin.addChangeListener(this);

result.add(hourSpin);

JLabel hourLabel = new JLabel("时");

hourLabel.setForeground(controlTextColor);

result.add(hourLabel);

return result;

}

private JPanel createWeekAndDayPanal() {

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

JPanel result = new JPanel();

// 设置固定字体，以免调用环境改变影响界面美观

result.setFont(new Font("宋体", Font.PLAIN, 12));

result.setLayout(new GridLayout(7, 7));

result.setBackground(Color.white);

JLabel cell;

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

cell = new JLabel(colname[i]);

cell.setHorizontalAlignment(JLabel.RIGHT);

if (i == 0 || i == 6)

cell.setForeground(weekendFontColor);

else

cell.setForeground(weekFontColor);

result.add(cell);

}

int actionCommandId = 0;

for (int i = 0; i 6; i++)

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

JButton numberButton = new JButton();

numberButton.setBorder(null);

numberButton.setHorizontalAlignment(SwingConstants.RIGHT);

numberButton.setActionCommand(String

.valueOf(actionCommandId));

numberButton.addActionListener(this);

numberButton.setBackground(palletTableColor);

numberButton.setForeground(dateFontColor);

if (j == 0 || j == 6)

numberButton.setForeground(weekendFontColor);

else

numberButton.setForeground(dateFontColor);

daysButton[i][j] = numberButton;

result.add(numberButton);

actionCommandId++;

}

return result;

}

private JDialog createDialog(JDialog owner) {

JDialog result = new JDialog(owner, "日期时间选择", true);

result.setDefaultCloseOperation(JDialog.HIDE_ON_CLOSE);

result.getContentPane().add(this, BorderLayout.CENTER);

result.pack();

result.setSize(width, height);

return result;

}

void showDateChooser(Point position) {

JDialog owner = (JDialog) SwingUtilities

.getWindowAncestor(DateChooserJButton.this);

if (dialog == null || dialog.getOwner() != owner)

dialog = createDialog(owner);

dialog.setLocation(getAppropriateLocation(owner, position));

flushWeekAndDay();

dialog.setVisible(true);

}

Point getAppropriateLocation(JDialog owner, Point position) {

Point result = new Point(position);

Point p = owner.getLocation();

int offsetX = (position.x + width) - (p.x + owner.getWidth());

int offsetY = (position.y + height) - (p.y + owner.getHeight());

if (offsetX 0) {

result.x -= offsetX;

}

if (offsetY 0) {

result.y -= offsetY;

}

return result;

}

private Calendar getCalendar() {

Calendar result = Calendar.getInstance();

result.setTime(getDate());

return result;

}

private int getSelectedYear() {

return ((Integer) yearSpin.getValue()).intValue();

}

private int getSelectedMonth() {

return ((Integer) monthSpin.getValue()).intValue();

}

private int getSelectedHour() {

return ((Integer) hourSpin.getValue()).intValue();

}

private void dayColorUpdate(boolean isOldDay) {

Calendar c = getCalendar();

int day = c.get(Calendar.DAY_OF_MONTH);

c.set(Calendar.DAY_OF_MONTH, 1);

int actionCommandId = day - 2 + c.get(Calendar.DAY_OF_WEEK);

int i = actionCommandId / 7;

int j = actionCommandId % 7;

if (isOldDay)

daysButton[i][j].setForeground(dateFontColor);

else

daysButton[i][j].setForeground(todayBackColor);

}

private void flushWeekAndDay() {

Calendar c = getCalendar();

c.set(Calendar.DAY_OF_MONTH, 1);

int maxDayNo = c.getActualMaximum(Calendar.DAY_OF_MONTH);

int dayNo = 2 - c.get(Calendar.DAY_OF_WEEK);

for (int i = 0; i 6; i++) {

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

String s = "";

if (dayNo = 1 dayNo = maxDayNo)

s = String.valueOf(dayNo);

daysButton[i][j].setText(s);

dayNo++;

}

}

dayColorUpdate(false);

}

public void stateChanged(ChangeEvent e) {

JSpinner source = (JSpinner) e.getSource();

Calendar c = getCalendar();

if (source.getName().equals("Hour")) {

c.set(Calendar.HOUR_OF_DAY, getSelectedHour());

setDate(c.getTime());

return;

}

dayColorUpdate(true);

if (source.getName().equals("Year"))

c.set(Calendar.YEAR, getSelectedYear());

else

// (source.getName().equals("Month"))

c.set(Calendar.MONTH, getSelectedMonth() - 1);

setDate(c.getTime());

flushWeekAndDay();

}

public void actionPerformed(ActionEvent e) {

JButton source = (JButton) e.getSource();

if (source.getText().length() == 0)

return;

dayColorUpdate(true);

source.setForeground(todayBackColor);

int newDay = Integer.parseInt(source.getText());

Calendar c = getCalendar();

c.set(Calendar.DAY_OF_MONTH, newDay);

setDate(c.getTime());

}

}

}

这是一个专门的选日期的类 ，java实现时钟日历代码你看看完了调用就行了

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