「java电子日历」Java电子日历答辩

博主:adminadmin 2022-11-24 11:36:06 39

本篇文章给大家谈谈java电子日历,以及Java电子日历答辩对应的知识点,希望对各位有所帮助,不要忘了收藏本站喔。

本文目录一览:

如何用JAVA写日历?

按照你的要求编写的Java日历验证程序如下

UI.java

import java.util.Scanner;

public class UI {

 static Scanner sc=new Scanner(System.in);

 public static int askInt(String s){

  System.out.print(s);

  return sc.nextInt();

 }

 public static void println(String s){

  System.out.println(s);

 }

}

EE.java

public class EE {

 public void validateDateCore(){

  int year =UI.askInt("Enter the year: ");

  int month=UI.askInt("Enter the month: ");

  int day=UI.askInt("Enter the day: ");

  if(year  1){

   UI.println("The year is not a valid number.");

   return;

  }

  if(month1 || month12){

   UI.println("The month is not a valid number.");

   return;

  }

  int monthDay=0;

  switch(month){

   case 1:

   case 3:

   case 5:

   case 7:

   case 8:

   case 10:

   case 12:monthDay=31;break;

   case 4:

   case 6:

   case 9:

   case 11:monthDay=30;break;

   case 2:

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

     monthDay=29;

    }else{

     monthDay=28;

    }

    break;

  }

  if(day1 || daymonthDay){

   UI.println("The day is not a valid number.");

   return;

  }else{

   UI.println("It is "+day+"/"+month+"/"+year+".");

  }

 }

 public static void main(String[] args) {

  new EE().validateDateCore();

 }

}

运行结果

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);

}

}

用JAVA做日历,要求源代码

import java.util.Scanner; public class Wan{ public static void main(String[] args){ Scanner name = new Scanner(System.in); System.out.print("请输入要查询的年份:"); int year = name.nextInt(); System.out.print("请输入该年的月份"); int month = name.nextInt(); } //累加 该年至输入的月份 天数 //比如 输入2009年的 3月分 // 那就累加 2009年的1月至 3月1号的总天数 public void sumDay(int year,int month){ int day = 0; int sumDay = 0; for(int i = 1;i=month;i++){ switch(i){ case 1: case 3: case 5: case 7: case 8: case 10: case 12: day = 31; break; case 2: if(year % 4 == 0 || year % 400 == 0 year %100!=0){ day = 29; }else{ day = 28; } break; default: day = 30; } //最后一个月份不要累加 因为我们只是要算到该月的一号就可以了 if(i month){ sumDay += day; } } //累加 2000年到该年的一月一号天数 for(int i = 2000;iyear;i++){ if( i % 4 == 0 || i %400== 0 i % 100 != 0){ sumDay += 366; }else{ sumDay += 365; } } //求该月一号为星期几 int week = sumDay % 7 +1; if(week == 7){ week = 0; } } public void fomatDate(int week,int day){ int g = 0; for(int i = 0;iweek;i++){ System.out.print("\t"); } for(int i = 1;i=day;i++){ System.out.print(i+"\t"); g = week + i; if(g % 7 == 0){ System.out.println(); } } } } 给点分哈 写得好累

怎样用java编写日历

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.Dimension;

import java.awt.GridLayout;

import java.awt.SystemColor;

import java.awt.event.ActionEvent;

import java.awt.event.KeyEvent;

import java.awt.event.MouseEvent;

import java.util.Calendar;

import java.util.GregorianCalendar;

import java.util.Locale;

import java.util.Date;

import java.util.StringTokenizer;

import javax.swing.BorderFactory;

import javax.swing.JButton;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

import javax.swing.JTextField;

import javax.swing.JToggleButton;

import javax.swing.SwingConstants;

import javax.swing.UIManager;

/**

* pTitle: Swing日历/p

* pDescription: 操作日期/p

* @author duxu2004

* @version 1.0.1

*/

class JCalendar extends JPanel{

//动态表示年月日

private int year=0;

private int month=0;

private int day=0;

//主面板

private JPanel Main = new JPanel();

//日面板

private JPanel jPanelDay = new JPanel();

//月面板

private JPanel jPanelMonth = new JPanel();

//年的输入位置

private JTextField Year = new JTextField();

//月的输入位置

private JTextField Month = new JTextField();

//减少月份

private JButton MonthDown = new JButton();

//增加月份

private JButton MonthUp = new JButton();

private JPanel jPanelButton = new JPanel();

//减少年份

private JButton YearDown = new JButton();

//增加年份

private JButton YearUp = new JButton();

//显示日期的位置

private JLabel Out = new JLabel();

//中国时区,以后可以从这里扩展可以设置时区的功能

private Locale l=Locale.CHINESE;

//主日历

private GregorianCalendar cal=new GregorianCalendar(l);

//星期面板

private JPanel weekPanel=new JPanel();

//天按钮组

private JToggleButton[] days=new JToggleButton[42];

//天面板

private JPanel Days = new JPanel();

//标示

private JLabel jLabel1 = new JLabel();

private JLabel jLabel2 = new JLabel();

private JLabel jLabel3 = new JLabel();

private JLabel jLabel4 = new JLabel();

private JLabel jLabel5 = new JLabel();

private JLabel jLabel6 = new JLabel();

private JLabel jLabel7 = new JLabel();

//当前选择的天数按钮

private JToggleButton cur=null;

//月份天数数组,用来取得当月有多少天

// 1 2 3 4 5 6 7 8 9 10 11 12

private int[] mm={31,28,31,30,31,30,31,31,30,31,30,31};

//空日期构造函数

public JCalendar() {

try {

jbInit();

}

catch(Exception e) {

e.printStackTrace();

}

}

//带日期设置的构造函数

public JCalendar(int year, int month, int day) {

cal.set(year, month, day);

try {

jbInit();

}

catch (Exception e) {

e.printStackTrace();

}

}

//带日历输入的构造函数

public JCalendar(GregorianCalendar calendar) {

cal=calendar;

try {

jbInit();

}

catch (Exception e) {

e.printStackTrace();

}

}

//带日期输入的构造函数

public JCalendar(Date date) {

cal.setTime(date);

try {

jbInit();

}

catch (Exception e) {

e.printStackTrace();

}

}

//初始化组件

private void jbInit() throws Exception {

//初始化年、月、日

iniCalender();

this.setLayout(new BorderLayout());

this.setBorder(BorderFactory.createRaisedBevelBorder());

this.setMaximumSize(new Dimension(200, 200));

this.setMinimumSize(new Dimension(200, 200));

this.setPreferredSize(new Dimension(200, 200));

Main.setLayout(new BorderLayout());

Main.setBackground(SystemColor.info);

Main.setBorder(null);

Out.setBackground(Color.lightGray);

Out.setHorizontalAlignment(SwingConstants.CENTER);

Out.setMaximumSize(new Dimension(100, 19));

Out.setMinimumSize(new Dimension(100, 19));

Out.setPreferredSize(new Dimension(100, 19));

jLabel1.setForeground(Color.red);

jLabel1.setHorizontalAlignment(SwingConstants.CENTER);

jLabel1.setHorizontalTextPosition(SwingConstants.CENTER);

jLabel1.setText("日");

jLabel2.setForeground(Color.blue);

jLabel2.setHorizontalAlignment(SwingConstants.CENTER);

jLabel2.setHorizontalTextPosition(SwingConstants.CENTER);

jLabel2.setText("六");

jLabel3.setHorizontalAlignment(SwingConstants.CENTER);

jLabel3.setHorizontalTextPosition(SwingConstants.CENTER);

jLabel3.setText("五");

jLabel4.setHorizontalAlignment(SwingConstants.CENTER);

jLabel4.setHorizontalTextPosition(SwingConstants.CENTER);

jLabel4.setText("四");

jLabel5.setHorizontalAlignment(SwingConstants.CENTER);

jLabel5.setHorizontalTextPosition(SwingConstants.CENTER);

jLabel5.setText("三");

jLabel6.setBorder(null);

jLabel6.setHorizontalAlignment(SwingConstants.CENTER);

jLabel6.setHorizontalTextPosition(SwingConstants.CENTER);

jLabel6.setText("二");

jLabel7.setBackground(Color.lightGray);

jLabel7.setForeground(Color.black);

jLabel7.setBorder(null);

jLabel7.setHorizontalAlignment(SwingConstants.CENTER);

jLabel7.setHorizontalTextPosition(SwingConstants.CENTER);

jLabel7.setText("一");

weekPanel.setBackground(UIManager.getColor("InternalFrame.activeTitleGradient"));

weekPanel.setBorder(BorderFactory.createEtchedBorder());

weekPanel.setLayout(new GridLayout(1,7));

weekPanel.add(jLabel1, null);

weekPanel.add(jLabel7, null);

weekPanel.add(jLabel6, null);

weekPanel.add(jLabel5, null);

weekPanel.add(jLabel4, null);

weekPanel.add(jLabel3, null);

weekPanel.add(jLabel2, null);

MonthUp.setAlignmentX((float) 0.0);

MonthUp.setActionMap(null);

jPanelMonth.setBackground(SystemColor.info);

jPanelMonth.setLayout(new BorderLayout());

jPanelMonth.setBorder(BorderFactory.createEtchedBorder());

Month.setBorder(null);

Month.setHorizontalAlignment(SwingConstants.CENTER);

Month.addMouseListener(new java.awt.event.MouseAdapter() {

public void mouseClicked(MouseEvent e) {

Month_mouseClicked(e);

}

});

Month.addKeyListener(new java.awt.event.KeyAdapter() {

public void keyPressed(KeyEvent e) {

Month_keyPressed(e);

}

});

MonthDown.setBorder(null);

MonthDown.setText("\u25C4");

MonthDown.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(ActionEvent e) {

MonthDown_actionPerformed(e);

}

});

MonthUp.setBorder(null);

MonthUp.setText("\u25BA");

MonthUp.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(ActionEvent e) {

MonthUp_actionPerformed(e);

}

});

jPanelButton.setLayout(null);

jPanelButton.setBorder(null);

jPanelButton.addComponentListener(new java.awt.event.ComponentAdapter() {

public void componentResized(java.awt.event.ComponentEvent evt) {

jPanelButtonComponentResized(evt);

}

});

Year.setBorder(BorderFactory.createEtchedBorder());

Year.setMaximumSize(new Dimension(80, 25));

Year.setMinimumSize(new Dimension(80, 25));

Year.setPreferredSize(new Dimension(80, 25));

Year.setHorizontalAlignment(SwingConstants.CENTER);

Year.addMouseListener(new java.awt.event.MouseAdapter() {

public void mouseClicked(MouseEvent e) {

Year_mouseClicked(e);

}

});

Year.addKeyListener(new java.awt.event.KeyAdapter() {

public void keyPressed(KeyEvent e) {

Year_keyPressed(e);

}

});

YearDown.setBorder(null);

YearDown.setMaximumSize(new Dimension(16, 16));

YearDown.setMinimumSize(new Dimension(16, 16));

YearDown.setPreferredSize(new Dimension(16, 16));

YearDown.setSize(new Dimension(16, 16));

YearDown.setText("▼");

YearDown.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(ActionEvent e) {

YearDown_actionPerformed(e);

}

});

YearUp.setBorder(null);

YearUp.setMaximumSize(new Dimension(16, 16));

YearUp.setMinimumSize(new Dimension(16, 16));

YearUp.setPreferredSize(new Dimension(16, 16));

YearUp.setSize(new Dimension(16, 16));

YearUp.setText("▲");

YearUp.addActionListener(new java.awt.event.ActionListener() {

public void actionPerformed(ActionEvent e) {

YearUp_actionPerformed(e);

}

});

jPanelDay.setLayout(new BorderLayout());

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

Days.setBackground(SystemColor.info);

for(int i=0;i42;i++){

days[i]=new JToggleButton();

days[i].setBorder(null);

days[i].setBackground(SystemColor.info);

days[i].setHorizontalAlignment(SwingConstants.CENTER);

days[i].setHorizontalTextPosition(SwingConstants.CENTER);

//days[i].setSize(l,l);

days[i].addActionListener(new java.awt.event.ActionListener(){

public void actionPerformed(ActionEvent e) {

day=Integer.parseInt(((JToggleButton)e.getSource()).getText());

showDate();

showDays();

}

});

Days.add(days[i]);

}

this.add(Main, BorderLayout.NORTH);

this.add(jPanelDay, BorderLayout.CENTER);

this.add(jPanelMonth, BorderLayout.SOUTH);

Main.add(Year, BorderLayout.CENTER);

Main.add(Out, BorderLayout.WEST);

Main.add(jPanelButton, BorderLayout.EAST);

jPanelButton.add(YearUp);

jPanelButton.add(YearDown);

jPanelDay.add(weekPanel,BorderLayout.NORTH);

jPanelDay.add(Days, BorderLayout.CENTER);

jPanelMonth.add(Month, BorderLayout.CENTER);

jPanelMonth.add(MonthDown, BorderLayout.WEST);

jPanelMonth.add(MonthUp, BorderLayout.EAST);

showMonth();

showYear();

showDate();

showDays();

}

//自定义重画年选择面板

void jPanelButtonComponentResized(java.awt.event.ComponentEvent evt){

YearUp.setLocation(0,0);

YearDown.setLocation(0,YearUp.getHeight());

jPanelButton.setSize(YearUp.getWidth(),YearUp.getHeight()*2);

jPanelButton.setPreferredSize(new Dimension(YearUp.getWidth(),YearUp.getHeight()*2));

jPanelButton.updateUI();

}

//测试用

public static void main(String[] args){

JFrame f=new JFrame();

f.setContentPane(new JCalendar());

f.pack();

//f.setResizable(false);

f.show();

}

//增加年份

void YearUp_actionPerformed(ActionEvent e) {

year++;

showYear();

showDate();

showDays();

}

//减少年份

void YearDown_actionPerformed(ActionEvent e) {

year--;

showYear();

showDate();

showDays();

}

//减少月份

void MonthDown_actionPerformed(ActionEvent e) {

month--;

if(month0) {

month = 11;

year--;

showYear();

}

showMonth();

showDate();

showDays();

}

//增加月份

void MonthUp_actionPerformed(ActionEvent e) {

month++;

if(month==12) {

month=0;

year++;

showYear();

}

showMonth();

showDate();

showDays();

}

//初始化年月日

void iniCalender(){

year=cal.get(Calendar.YEAR);

month=cal.get(Calendar.MONTH);

day=cal.get(Calendar.DAY_OF_MONTH);

}

//刷新月份

void showMonth(){

Month.setText(Integer.toString(month+1)+"月");

}

//刷新年份

void showYear(){

Year.setText(Integer.toString(year)+"年");

}

//刷新日期

void showDate(){

Out.setText(Integer.toString(year)+"-"+Integer.toString(month+1)+"-"+Integer.toString(day));

}

//重画天数选择面板

void showDays() {

cal.set(year,month,1);

int firstDayOfWeek = cal.get(Calendar.DAY_OF_WEEK);

int n=mm[month];

if(cal.isLeapYear(year)month==1) n++;

int i=0;

for(;ifirstDayOfWeek-1;i++){

days[i].setEnabled(false);

days[i].setSelected(false);

days[i].setText("");

}

int d=1;

for(;d=n;d++){

days[i].setText(Integer.toString(d));

days[i].setEnabled(true);

if(d==day) days[i].setSelected(true);

else days[i].setSelected(false);;

i++;

}

for(;i42;i++){

days[i].setEnabled(false);

days[i].setSelected(false);

days[i].setText("");

}

}

//单击年份面板选择整个年份字符串

void SelectionYear(){

Year.setSelectionStart(0);

Year.setSelectionEnd(Year.getText().length());

}

//单击月份面板选择整个月份字符串

void SelectionMonth(){

Month.setSelectionStart(0);

Month.setSelectionEnd(Month.getText().length());

}

//月份面板响应鼠标单击事件

void Month_mouseClicked(MouseEvent e) {

//SelectionMonth();

inputMonth();

}

//检验输入的月份

void inputMonth(){

String s;

if(Month.getText().endsWith("月"))

{

s=Month.getText().substring(0,Month.getText().length()-1);

}

else s=Month.getText();

month=Integer.parseInt(s)-1;

this.showMe();

}

//月份面板键盘敲击事件响应

void Month_keyPressed(KeyEvent e) {

if(e.getKeyChar()==10)

inputMonth();

}

//年份面板响应鼠标单击事件

void Year_mouseClicked(MouseEvent e) {

//SelectionYear();

inputYear();

}

//年份键盘敲击事件响应

void Year_keyPressed(KeyEvent e) {

//System.out.print(new Integer(e.getKeyChar()).byteValue());

if(e.getKeyChar()==10)

inputYear();

}

//检验输入的年份字符串

void inputYear() {

String s;

if(Year.getText().endsWith("年"))

{

s=Year.getText().substring(0,Year.getText().length()-1);

}

else s=Year.getText();

year=Integer.parseInt(s);

this.showMe();

}

//以字符串形式返回日期,yyyy-mm-dd

public String getDate(){return Out.getText();}

//以字符串形式输入日期,yyyy-mm-dd

public void setDate(String date){

if(date!=null){

StringTokenizer f = new StringTokenizer(date, "-");

if(f.hasMoreTokens())

year = Integer.parseInt(f.nextToken());

if(f.hasMoreTokens())

month = Integer.parseInt(f.nextToken());

if(f.hasMoreTokens())

day = Integer.parseInt(f.nextToken());

cal.set(year,month,day);

}

this.showMe();

}

//以日期对象形式输入日期

public void setTime(Date date){

cal.setTime(date);

this.iniCalender();

this.showMe();

}

//返回日期对象

public Date getTime(){return cal.getTime();}

//返回当前的日

public int getDay() {

return day;

}

//设置当前的日

public void setDay(int day) {

this.day = day;

cal.set(this.year,this.month,this.day);

this.showMe();

}

//设置当前的年

public void setYear(int year) {

this.year = year;

cal.set(this.year,this.month,this.day);

this.showMe();

}

//返回当前的年

public int getYear() {

return year;

}

//返回当前的月

public int getMonth() {

return month;

}

//设置当前的月

public void setMonth(int month) {

this.month = month;

cal.set(this.year,this.month,this.day);

this.showMe();

}

//刷新

public void showMe(){

this.showDays();

this.showMonth();

this.showYear();

this.showDate();

}

}

public class TestJCalendar {

public static void main(String[] args) {

JFrame f=new JFrame();

f.setContentPane(new JCalendar());

f.pack();

//f.setResizable(false);

f.show();

}

}

java制作日历

package com;import java.awt.Color;import java.awt.Font;import java.awt.GridLayout;import java.awt.event.ActionEvent;import java.awt.event.ActionListener;import java.awt.event.ItemEvent;import java.awt.event.ItemListener;import java.util.Date;import java.util.GregorianCalendar;import javax.swing.JButton;import javax.swing.JComboBox;import javax.swing.JFrame;import javax.swing.JLabel;public class Calender2 extends JFrame implements ActionListener, ItemListener { private static final long serialVersionUID = 1L; public static void main(String args[]) { try { Calender2 frame = new Calender2(); frame.setVisible(true); } catch (Exception e) { e.printStackTrace(); } } private Date date = new Date(); private GregorianCalendar gregorianCalendar = new GregorianCalendar(); private String[] stringWeek = new String[] { "SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT" }; private String[] stringWeekCn = new String[] { "星期天", "星期一", "星期二", "星期三", "星期四", "星期五", "星期六" }; private String[] stringMonth = new String[] { "Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sept", "Oct", "Nov", "Dec" }; private String[] strSysTime = new String[6]; // 存储当前日期信息 private String[] strSysNowTime = new String[6]; // 存储运行时日期信息 private JButton[] buttonDay = new JButton[42]; private JButton[] buttonWeek = new JButton[7]; private JLabel labelMonth = new JLabel(); private JButton buttonToday = new JButton(); private JButton buttonLastMonth = new JButton(); private JButton buttonNextMonth = new JButton(); private JComboBox comboYear = new JComboBox(); private JComboBox comboMonth = new JComboBox(); public Calender2() { super("万年历"); getContentPane().setLayout(new GridLayout(8, 7, 3, 5)); setBounds(250, 200, 530, 360); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); comboYear.setForeground(new Color(0, 0, 255)); comboYear.setFont(new Font("", Font.PLAIN, 14)); for (int y = 1900; y 2101; y++) { comboYear.addItem(" " + new Integer(y).toString()); } getContentPane().add(comboYear); comboYear.addItemListener(this); final JLabel labelYear = new JLabel(); labelYear.setForeground(Color.BLUE); labelYear.setFont(new Font("新宋体", Font.PLAIN, 14)); getContentPane().add(labelYear); labelYear.setText(" 年"); comboMonth.setForeground(new Color(0, 0, 255)); comboMonth.setFont(new Font("", Font.PLAIN, 14)); for (int m = 1; m 13; m++) { comboMonth.addItem(" " + new Integer(m).toString()); } getContentPane().add(comboMonth); comboMonth.addItemListener(this); getContentPane().add(labelMonth); labelMonth.setForeground(Color.BLUE); labelMonth.setFont(new Font("新宋体", Font.PLAIN, 14)); labelMonth.setText(" 月"); getContentPane().add(buttonLastMonth); buttonLastMonth.setForeground(Color.BLUE); buttonLastMonth.setFont(new Font("新宋体", Font.PLAIN, 14)); buttonLastMonth.setText("上月"); buttonLastMonth.addActionListener(this); getContentPane().add(buttonToday); buttonToday.setForeground(Color.BLUE); buttonToday.setFont(new Font("新宋体", Font.PLAIN, 14)); buttonToday.setText("今天"); buttonToday.addActionListener(this); getContentPane().add(buttonNextMonth); buttonNextMonth.setForeground(Color.BLUE); buttonNextMonth.setFont(new Font("新宋体", Font.PLAIN, 14)); buttonNextMonth.setText("下月"); buttonNextMonth.addActionListener(this); for (int i = 0; i 7; i++) { buttonWeek[i] = new JButton(); if (i == 0 || i == 6) { buttonWeek[i].setForeground(Color.RED); } else { buttonWeek[i].setForeground(Color.BLUE); } buttonWeek[i].setFont(new Font("新宋体", Font.PLAIN, 12)); buttonWeek[i].setText(stringWeekCn[i]); getContentPane().add(buttonWeek[i]); } for (int i = 0; i 42; i++) { buttonDay[i] = new JButton(); buttonDay[i].setText(""); getContentPane().add(buttonDay[i]); } this.setResizable(false); getSysNowTimeInfo(); setNowDate(); setNowDate(); } public void setSysDate(int year, int month) { // 将日期设置为year年month月1日 gregorianCalendar.set(year, month, 1); } public void actionPerformed(ActionEvent ae) { if (ae.getSource() == buttonToday) { setNowDate(); setNowDate(); } else if (ae.getSource() == buttonLastMonth) { setDate(-1); } else { setDate(1); } } public void itemStateChanged(ItemEvent arg0) { setDate(0); } public void getSysNowTimeInfo() { // 得到程序运行时的时间信息并存储在字符串数组strSysNowTime中 date = gregorianCalendar.getTime(); strSysNowTime = (date + "").split(" "); } public void getSysTimeInfo() { // 得到系统当前的时间信息并存储在字符串数组strSysTime中 date = gregorianCalendar.getTime(); strSysTime = (date + "").split(" "); } public int getNowMonth() { int month = 0; for (int i = 0; i 12; i++) { if (strSysNowTime[1].equalsIgnoreCase(stringMonth[i])) { month = i; break; } } return month; } public int weekStrat(String strWeek) { // 返回字符串strWeek与星期中的第几天匹配,SUN为第一天 int strat = 0; for (int i = 0; i 7; i++) { if (strWeek.equalsIgnoreCase(stringWeek[i])) { strat = i; break; } } return strat; } public void setNowDate() { // 将时间设置为程序运行时的时间 setSysTime(getNowYear(), getNowMonth()); getSysTimeInfo(); setDayNull(); getDay(getMonthDays(getNowYear(), getNowMonth() - 1), getMonthDays( getNowYear(), getNowMonth()), weekStrat(strSysTime[0]), getNowDay()); comboYear.setSelectedIndex(getNowYear() - 1900); comboMonth.setSelectedIndex(getNowMonth()); } public void setDate(int move) { // 将时间设置为选中的年月增加move个月之后的时间 setSysTime(getYear(), getMonth() + move); getSysTimeInfo(); setDayNull(); getDay(getMonthDays(getYear(), getMonth() + move - 1), getMonthDays( getYear(), getMonth() + move), weekStrat(strSysTime[0]), -1); if (move != 0) { if (getMonth() == 0 move 0) { move = 11; comboYear.setSelectedIndex(getYear() - 1901); } else if (getMonth() == 11 move 0) { move = -11; comboYear.setSelectedIndex(getYear() - 1899); } else { comboYear.setSelectedIndex(getYear() - 1900); } comboMonth.setSelectedIndex(getMonth() + move); } } public void setSysTime(int year, int month) { gregorianCalendar.set(year, month, 1); } public int getNowYear() { return Integer.parseInt(strSysNowTime[5]); } public int getNowDay() { return Integer.parseInt(strSysNowTime[2]); } public int getYear() { return comboYear.getSelectedIndex() + 1900; } public int getMonth() { return comboMonth.getSelectedIndex(); } public void setDayNull() { for (int d = 0; d 42; d++) { buttonDay[d].setText(""); } } public void getDay(int lastMonDays, int monthDays, int startWeek, int day) { // 设置日期颜色并打印 for (int d = 0; d startWeek + 1; d++) { buttonDay[d].setForeground(Color.GRAY); buttonDay[d].setText((lastMonDays - startWeek) + d + 1 + ""); } for (int d = startWeek; d startWeek + monthDays; d++) { if ((d - startWeek + 1) == day) { buttonDay[d].setForeground(Color.blue); } else if (d % 7 == 0 || d % 7 == 6) { buttonDay[d].setForeground(Color.RED); } else { buttonDay[d].setForeground(Color.BLACK); } buttonDay[d].setText(d - startWeek + 1 + ""); } for (int d = monthDays + startWeek; d 42; d++) { buttonDay[d].setForeground(Color.GRAY); buttonDay[d].setText(d - (monthDays + startWeek) + 1 + ""); } } public int getMonthDays(int year, int month) { // 返回year年month月的天数 switch (month) { case 3: case 5: case 8: case 10: return 30; case 1: if (gregorianCalendar.isLeapYear(year)) { return 29; } else { return 28; } default: return 31; } }}

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发布于:2022-11-24,除非注明,否则均为首码项目网原创文章,转载请注明出处。