本文目录一览：
- 1、编写 万年历java代码例如1900年一月一日是星期一。
- 2、java万年历程序如何编写？
- 3、求一个java swing带界面的万年历代码
- 4、java万年历源代码
- 5、java万年历源代码是多少？
- 6、如何用java语言 写出一个万年历呢？ 要求自己输入年份 自动出现月 日 以及对应的星期
编写 万年历java代码例如1900年一月一日是星期一。
import java.util.Calendar;
import java.util.Date;
import java.util.Scanner;
public class MyCalendar
{
public static void main(String[] args)
{
Scanner scanner = new Scanner(System.in);
String reg = "^(\\d+)[^\\d]+((0?[1-9])|(1[012]))$";
while(true)
{
System.out.println("输入年月(年和月用非数字隔开:如2015.1)(什么都不输入直接退出)");
String line = scanner.nextLine().trim();
if("".equals(line))
{
scanner.close();
break;
}
if(!line.matches(reg))
{
continue;
}
int year = Integer.parseInt(line.replaceAll(reg, "$1"));
int month = Integer.parseInt(line.replaceAll(reg, "$2"));
System.out.println("日\t一\t二\t三\t四\t五\t六");
Calendar calendar = Calendar.getInstance();
// 这个月的1号是星期几
calendar.set(year, month - 1, 1);
int day = calendar.get(Calendar.DAY_OF_WEEK);
int start = Calendar.SUNDAY;
calendar.add(Calendar.DATE, -day + start);
while(start day)
{
System.out.print(calendar.get(Calendar.DATE) + "\t");
calendar.add(Calendar.DATE, 1);
start++;
}
calendar.set(year, month - 1, 1);
Date now = calendar.getTime();
calendar.set(year, month, 1);
Date next = calendar.getTime();
for(Date cur = now; cur.before(next);)
{
calendar.setTime(cur);
int x = calendar.get(Calendar.DATE);
String tmp = x 10 ? "0" + x : x + "";
System.out.print(tmp + "\t");
if(calendar.get(Calendar.DAY_OF_WEEK) == Calendar.SATURDAY)
{
System.out.println();
}
calendar.add(Calendar.DATE, 1);
cur = calendar.getTime();
}
calendar.add(Calendar.DATE, -1);
int to = calendar.get(Calendar.DAY_OF_WEEK);
int end = Calendar.SATURDAY;
while(to end)
{
calendar.add(Calendar.DATE, 1);
int x = calendar.get(Calendar.DATE);
String tmp = x 10 ? "0" + x : x + "";
System.out.print(tmp + "\t");
to++;
}
System.out.println();
}
}
}
java万年历程序如何编写？
package calendar;
import java.applet.Applet;
import java.awt.*;
import java.util.*;
public class CalendarApplet extends Applet{
private static final long serialVersionUID = 1L;
static final int TOP = 70; //顶端距离
static final int CELLWIDTH=50,CELLHEIGHT = 30; //单元格尺寸
static final int MARGIN = 3; //边界距离
static final int FEBRUARY = 1;
TextField tfYear = new TextField("2004", 5); //显示年份的文本域
Choice monthChoice = new Choice(); //月份选择下拉框
Button btUpdate = new Button("更新"); //更新按钮
GregorianCalendar calendar=new GregorianCalendar(); //日历对象
Font smallFont = new Font("TimesRoman", Font.PLAIN, 15); //显示小字体
Font bigFont = new Font("TimesRoman", Font.BOLD, 50); //显示大字体
String days[] = {"星期日", "星期一", "星期二", "星期三","星期四", "星期五", "星期六"};
String months[] = {"一月", "二月", "三月", "四月","五月", "六月", "七月", "八月", "九月","十月", "十一月", "十二月"};
int daysInMonth[] = {31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31}; //每个月的天数
int searchMonth,searchYear; //查询的年份及月份
public void init(){
setBackground(Color.white); //设置背景颜色
searchMonth = calendar.get(Calendar.MONTH); //得到系统年份
searchYear = calendar.get(Calendar.YEAR); //得到系统月份
add(new Label(" 年:")); //增加组件到Applet
tfYear.setText(String.valueOf(searchYear)); //设置文本域文字
add(tfYear);
add(new Label(" 月:"));
setSize(360,230);
monthChoice.setFont(smallFont); //设置月份选择下拉框的显示字体
for (int i = 0; i 12; i++) {
monthChoice.add(months[i]); //增加下拉框选项
}
monthChoice.select(searchMonth); //设置下拉框当前选择项
add(monthChoice);
add(btUpdate);
int componentCount=this.getComponentCount(); //得到Applet中的组件数量
for (int i=0;icomponentCount;i++){
getComponent(i).setFont(smallFont); //设置所有组件的显示字体
}
}
public void paint(Graphics g){
FontMetrics fontMetric; //显示字体的FontMetrics对象
int fontAscent;
int dayPos;
int totalWidth, totalHeight; //总的宽度,高度
int numRows; //行数
int xNum, yNum; //水平和垂直方向单元格数量
int numDays;
String dayStr; //显示天数字符串
g.setColor(Color.lightGray); //设置当前颜色
g.setFont(bigFont); //设置当前使用字体
g.drawString(searchYear+"年",60,TOP+70); //绘制字符串
g.drawString((searchMonth+1)+"月",200,TOP+130);
g.setColor(Color.black);
g.setFont(smallFont);
fontMetric = g.getFontMetrics(); //获取变量初值
fontAscent = fontMetric.getAscent();
dayPos = TOP + fontAscent / 2;
totalWidth = 7 * CELLWIDTH; //得到总的表格宽度
for (int i = 0; i 7; i++) {
g.drawString(days[i], (CELLWIDTH-fontMetric.stringWidth(days[i]))/2 + i*CELLWIDTH,dayPos-20); //绘制表格标题栏
}
numRows = getNumberRows(searchYear, searchMonth); //计算需要的行的数量
totalHeight = numRows * CELLHEIGHT; //得到总的表格高度
for (int i = 0; i = totalWidth; i += CELLWIDTH) {
g.drawLine(i, TOP , i, TOP+ totalHeight); //绘制表格线
}
for (int i = 0, j = TOP ; i = numRows; i++, j += CELLHEIGHT) {
g.drawLine(0, j, totalWidth, j); //绘制表格线
}
xNum = (getFirstDayOfMonth(searchYear, searchMonth) + 1) * CELLWIDTH - MARGIN;
yNum = TOP + MARGIN + fontAscent;
numDays = daysInMonth[searchMonth] + ((calendar.isLeapYear(searchYear) (searchMonth == FEBRUARY)) ? 1 : 0);
for (int day = 1; day = numDays; day++) {
dayStr = Integer.toString(day);
g.drawString(dayStr, xNum - fontMetric.stringWidth(dayStr), yNum); //绘制字符串
xNum += CELLWIDTH;
if (xNum totalWidth) {
xNum = CELLWIDTH - MARGIN;
yNum += CELLHEIGHT;
}
}
}
public boolean action(Event e, Object o){
int searchYearInt;
if (e.target==btUpdate){
searchMonth = monthChoice.getSelectedIndex(); //得到查询月份
searchYearInt = Integer.parseInt(tfYear.getText(), 10); //得到查询年份
if (searchYearInt 1581) {
searchYear = searchYearInt;
}
repaint(); //重绘屏幕
return true;
}
return false;
}
private int getNumberRows(int year, int month) { //得到行数量
int firstDay;
int numCells;
if (year 1582) { //年份小于1582年，则返回-1
return (-1);
}
if ((month 0) || (month 11)) {
return (-1);
}
firstDay = getFirstDayOfMonth(year, month); //计算月份的第一天
if ((month == FEBRUARY) (firstDay == 0) !calendar.isLeapYear(year)) {
return 4;
}
numCells = firstDay + daysInMonth[month];
if ((month == FEBRUARY) (calendar.isLeapYear(year))) {
numCells++;
}
return ((numCells = 35) ? 5 : 6); //返回行数
}
private int getFirstDayOfMonth(int year, int month) { //得到每月的第一天
int firstDay;
int i;
if (year 1582) { //年份小于1582年,返回-1
return (-1);
}
if ((month 0) || (month 11)) { //月份数错误,返回-1
return (-1);
}
firstDay = getFirstDayOfYear(year); //得到每年的第一天
for (i = 0; i month; i++) {
firstDay += daysInMonth[i]; //计算每月的第一天
}
if ((month FEBRUARY) calendar.isLeapYear(year)) {
firstDay++;
}
return (firstDay % 7);
}
private int getFirstDayOfYear(int year){ //计算每年的第一天
int leapYears;
int hundreds;
int fourHundreds;
int first;
if (year 1582) { //如果年份小于1582年
return (-1); //返回-1
}
leapYears = (year - 1581) / 4;
hundreds = (year - 1501) / 100;
leapYears -= hundreds;
fourHundreds = (year - 1201) / 400;
leapYears += fourHundreds;
first=5 + (year - 1582) + leapYears % 7; //得到每年第一天
return first;
}
}
/*
* DateFormat dateFormat=new SimpleDateFormat("yyyy-MM-dd hh:mm:ss");
* dateFormat.format(new Date());//1987-02-17 21:02:01
*/
我自己弄的，你参考下
求一个java swing带界面的万年历代码
按照你的要求编写的Java swing 带界面的万年历代码如下
//日历
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]);
}
}
}
java万年历源代码
直接输入你先要的就可以了 当然了现在一般都不用这么麻烦的 现在有全面的一个简写版本可以直接用 谢谢
java万年历源代码是多少？
package org.java.test;\x0d\x0a\x0d\x0aimport java.util.Scanner;\x0d\x0apublic class CalendarTest{\x0d\x0apublic static void main(String[] args) {\x0d\x0aSystem.out.println("欢 迎 使 用 万 年 历");\x0d\x0aScanner input = new Scanner(System.in);\x0d\x0aSystem.out.print("\n请选择年份： ");\x0d\x0aint year = input.nextInt();\x0d\x0aSystem.out.print("\n请选择月份： ");\x0d\x0aint month = input.nextInt();\x0d\x0aSystem.out.println();\x0d\x0aint days = 0; // 存储当月的天数\x0d\x0aboolean isRn;\x0d\x0a/* 判断是否是闰年 */\x0d\x0aif (year % 4 == 0 !(year % 100 == 0) || year % 400 == 0) { // 判断是否为闰年\x0d\x0aisRn = true; // 闰年\x0d\x0a} else {\x0d\x0aisRn = false;// 平年\x0d\x0a}\x0d\x0a/* 计算输入的年份之前的天数 */\x0d\x0aint totalDays = 0;\x0d\x0afor (int i = 1900; i
回答于 2022-11-16
如何用java语言 写出一个万年历呢？ 要求自己输入年份 自动出现月 日 以及对应的星期
如果要月历，只要把月份循环那里修改下，直接调用月历方法既可
import java.text.DateFormatSymbols;
import java.util.Calendar;
import javax.swing.JOptionPane;
public class YearCalendar {
public static void main(String[] args) {
final String title = getCalTitle();
String input = JOptionPane.showInputDialog("Please input year");
try{
if(!input.trim().matches("^\\d{4}$")){
throw new NumberFormatException();
}
int year = Integer.parseInt(input.trim());
System.out.println("------- Calendar For Year " + year + " ----------------");
String[] monthTitles = new DateFormatSymbols().getMonths();
for(int month = Calendar.JANUARY; month = Calendar.DECEMBER; month++){
System.out.println("\t********** " + monthTitles[month] + " *********");
System.out.println(title);
generateMonthlyCalendar(year, month);
System.out.println("\n\n");
}
}catch(NumberFormatException nbFmtExp){
JOptionPane.showMessageDialog(null, "Error data foramt! Date should be 4 digits only format yyyy");
System.exit(0);
}
}
private static String getCalTitle() {
StringBuffer sb = new StringBuffer();
String[] ary = new DateFormatSymbols().getShortWeekdays();
for(int i = Calendar.SUNDAY; i = Calendar.SATURDAY; i++){
sb.append(ary[i]+ "\t");
}
return sb.toString();
}
private static void generateMonthlyCalendar(int year, int month) {
Calendar cal = Calendar.getInstance();
cal.set(Calendar.YEAR, year);
cal.set(Calendar.MONTH, month);
cal.set(Calendar.DATE, 1);
int maxDay = cal.getActualMaximum(Calendar.DAY_OF_MONTH);
int i = 0;
for(i = Calendar.SUNDAY; i cal.get(Calendar.DAY_OF_WEEK); i++){
System.out.print(" \t");
}
while(cal.get(Calendar.DAY_OF_WEEK) != Calendar.SUNDAY){
System.out.print(cal.get(Calendar.DATE) + "\t");
cal.add(Calendar.DATE, 1);
}
int weekDay = Calendar.SATURDAY;
int day = cal.get(Calendar.DATE);
while(day = maxDay){
if(weekDay == Calendar.SATURDAY){
System.out.println();
weekDay = Calendar.SUNDAY;
}else{
weekDay++;
}
System.out.print(day++ + "\t");
}
}
}
--------------------------------JDK 1.5结果
------- Calendar For Year 2011 ----------------
********** January *********
Sun Mon Tue Wed Thu Fri Sat
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
********** February *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28
********** March *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30 31
********** April *********
Sun Mon Tue Wed Thu Fri Sat
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
********** May *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31
********** June *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4
5 6 7 8 9 10 11
12 13 14 15 16 17 18
19 20 21 22 23 24 25
26 27 28 29 30
********** July *********
Sun Mon Tue Wed Thu Fri Sat
1 2
3 4 5 6 7 8 9
10 11 12 13 14 15 16
17 18 19 20 21 22 23
24 25 26 27 28 29 30
31
********** August *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5 6
7 8 9 10 11 12 13
14 15 16 17 18 19 20
21 22 23 24 25 26 27
28 29 30 31
********** September *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30
********** October *********
Sun Mon Tue Wed Thu Fri Sat
1
2 3 4 5 6 7 8
9 10 11 12 13 14 15
16 17 18 19 20 21 22
23 24 25 26 27 28 29
30 31
********** November *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3 4 5
6 7 8 9 10 11 12
13 14 15 16 17 18 19
20 21 22 23 24 25 26
27 28 29 30
********** December *********
Sun Mon Tue Wed Thu Fri Sat
1 2 3
4 5 6 7 8 9 10
11 12 13 14 15 16 17
18 19 20 21 22 23 24
25 26 27 28 29 30 31
