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import java.util.Calendar;
import java.util.Scanner;
public class Test {
static public void main(String 參數(shù)[]){
Calendar c = Calendar.getInstance();
Scanner sc = new Scanner(System.in);
System.out.println("請(qǐng)輸入年份：");
int year= sc.nextInt();
c.set(Calendar.YEAR, year);
c.set(Calendar.MONTH, Calendar.JANUARY);
c.set(Calendar.DAY_OF_MONTH, 1);
while(c.get(Calendar.YEAR)==year){
int wday=c.get(Calendar.DAY_OF_WEEK);
int mday=c.get(Calendar.DAY_OF_MONTH);
if(mday==1){
System.out.println("\n日\t一\t二\t三\t四\t五\t六\t第"+(c.get(Calendar.MONTH)+1)+"月");
System.out.println("---------------------------------------------------");
for(int i=0;iwday-1;i++) System.out.print(" \t");
}
System.out.print(mday+"\t");
if(wday==7) System.out.println();
c.add(Calendar.DAY_OF_YEAR, 1);
}
}
}
=======
請(qǐng)輸入年份：
2012
日 一 二 三 四 五 六 第1月
---------------------------------------------------
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
日 一 二 三 四 五 六 第2月
---------------------------------------------------
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
日 一 二 三 四 五 六 第3月
---------------------------------------------------
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
日 一 二 三 四 五 六 第4月
---------------------------------------------------
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
日 一 二 三 四 五 六 第5月
---------------------------------------------------
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
日 一 二 三 四 五 六 第6月
---------------------------------------------------
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
日 一 二 三 四 五 六 第7月
---------------------------------------------------
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
日 一 二 三 四 五 六 第8月
---------------------------------------------------
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
日 一 二 三 四 五 六 第9月
---------------------------------------------------
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
日 一 二 三 四 五 六 第10月
---------------------------------------------------
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
日 一 二 三 四 五 六 第11月
---------------------------------------------------
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
日 一 二 三 四 五 六 第12月
---------------------------------------------------
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
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日歷/p
* pDescription: 操作日期/p
* @author duxu2004
* @version 1.0.1
*/
class JCalendar extends JPanel{
//動(dòng)態(tài)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();
//年的輸入位置
private JTextField Year = new JTextField();
//月的輸入位置
private JTextField Month = new JTextField();
//減少月份
private JButton MonthDown = new JButton();
//增加月份
private JButton MonthUp = new JButton();
private JPanel jPanelButton = new JPanel();
//減少年份
private JButton YearDown = new JButton();
//增加年份
private JButton YearUp = new JButton();
//顯示日期的位置
private JLabel Out = new JLabel();
//中國時(shí)區(qū)，以后可以從這里擴(kuò)展可以設(shè)置時(shí)區(qū)的功能
private Locale l=Locale.CHINESE;
//主日歷
private GregorianCalendar cal=new GregorianCalendar(l);
//星期面板
private JPanel weekPanel=new JPanel();
//天按鈕組
private JToggleButton[] days=new JToggleButton[42];
//天面板
private JPanel Days = new JPanel();
//標(biāo)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();
//當(dāng)前選擇的天數(shù)按鈕
private JToggleButton cur=null;
//月份天數(shù)數(shù)組，用來取得當(dāng)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};
//空日期構(gòu)造函數(shù)
public JCalendar() {
try {
jbInit();
}
catch(Exception e) {
e.printStackTrace();
}
}
//帶日期設(shè)置的構(gòu)造函數(shù)
public JCalendar(int year, int month, int day) {
cal.set(year, month, day);
try {
jbInit();
}
catch (Exception e) {
e.printStackTrace();
}
}
//帶日歷輸入的構(gòu)造函數(shù)
public JCalendar(GregorianCalendar calendar) {
cal=calendar;
try {
jbInit();
}
catch (Exception e) {
e.printStackTrace();
}
}
//帶日期輸入的構(gòu)造函數(shù)
public JCalendar(Date date) {
cal.setTime(date);
try {
jbInit();
}
catch (Exception e) {
e.printStackTrace();
}
}
//初始化組件
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();
}
//自定義重畫年選擇面板
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();
}
//測(cè)試用
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();
}
//減少年份
void YearDown_actionPerformed(ActionEvent e) {
year--;
showYear();
showDate();
showDays();
}
//減少月份
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));
}
//重畫天數(shù)選擇面板
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("");
}
}
//單擊年份面板選擇整個(gè)年份字符串
void SelectionYear(){
Year.setSelectionStart(0);
Year.setSelectionEnd(Year.getText().length());
}
//單擊月份面板選擇整個(gè)月份字符串
void SelectionMonth(){
Month.setSelectionStart(0);
Month.setSelectionEnd(Month.getText().length());
}
//月份面板響應(yīng)鼠標(biāo)單擊事件
void Month_mouseClicked(MouseEvent e) {
//SelectionMonth();
inputMonth();
}
//檢驗(yàn)輸入的月份
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();
}
//月份面板鍵盤敲擊事件響應(yīng)
void Month_keyPressed(KeyEvent e) {
if(e.getKeyChar()==10)
inputMonth();
}
//年份面板響應(yīng)鼠標(biāo)單擊事件
void Year_mouseClicked(MouseEvent e) {
//SelectionYear();
inputYear();
}
//年份鍵盤敲擊事件響應(yīng)
void Year_keyPressed(KeyEvent e) {
//System.out.print(new Integer(e.getKeyChar()).byteValue());
if(e.getKeyChar()==10)
inputYear();
}
//檢驗(yàn)輸入的年份字符串
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();}
//以字符串形式輸入日期,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();
}
//以日期對(duì)象形式輸入日期
public void setTime(Date date){
cal.setTime(date);
this.iniCalender();
this.showMe();
}
//返回日期對(duì)象
public Date getTime(){return cal.getTime();}
//返回當(dāng)前的日
public int getDay() {
return day;
}
//設(shè)置當(dāng)前的日
public void setDay(int day) {
this.day = day;
cal.set(this.year,this.month,this.day);
this.showMe();
}
//設(shè)置當(dāng)前的年
public void setYear(int year) {
this.year = year;
cal.set(this.year,this.month,this.day);
this.showMe();
}
//返回當(dāng)前的年
public int getYear() {
return year;
}
//返回當(dāng)前的月
public int getMonth() {
return month;
}
//設(shè)置當(dāng)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();
}
}
import java.util.*;
public class calendar
{
public static void main(String[] args)
{
new calendar().makeCalendar();
}
public void makeCalendar()
{
int i;
int j;
int year = 0;
int month = 0;
int week = 0;
int totalDay = 0;
Scanner scanner = new Scanner(System.in);
Calendar ca = Calendar.getInstance();
printAsterisk();
System.out.print("歡 迎 使 用 萬 年 歷");
printAsterisk();
System.out.print("\n\n請(qǐng)輸入年份:");
year = scanner.nextInt();
System.out.print("\n\n請(qǐng)輸入月份:");
month = scanner.nextInt() ;
ca.set(year, month - 1,1);
week = ca.get(Calendar.DAY_OF_WEEK)-1;//獲取輸入月第一天是星期幾
if( month != 2)
totalDay = calculatetotalDay(year , month);
else
{
if(judgeLeap_year(year))
totalDay = calculatetotalDay(year , month) + 1;//如果是閏年，加一天
else
totalDay = calculatetotalDay(year , month);
}
System.out.println("\n\n\n星期日\t星期一\t星期二\t星期三\t星期四\t星期五\t星期六");
for(i = 0;i week;i++)
{
System.out.print("\t");
}
for( i = 1; i (8 - week);i++)
System.out.print(i + "\t");
for( i = (8 - week),j = 0;i = totalDay;i++,j++)
{
if(j % 7 == 0)
System.out.println();
System.out.print(i+"\t");
}
}
public void printAsterisk()
{
int i;
for( i = 0 ; i 18;i++)
System.out.print("*");
}
//獲取輸入月的天數(shù)
public int calculatetotalDay(int year ,int month)
{
int result = 0;
switch (month)
{
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
case 12: result = 31;
break;
case 4:
case 6:
case 9:
case 11:result = 30;
break;
default:result = 28;
break;
}
return result;
}
//判斷閏年
public boolean judgeLeap_year(int year)
{
if((year % 4 == 0 year % 100 != 0) || year % 400 == 0)
return true;
else
return false;
}
}
以下是兩個(gè)類，請(qǐng)樓主分別存成兩個(gè)java文件:
其中
MainFrame.java是顯示日歷程序，Clock.java是日歷計(jì)算程序。編譯后運(yùn)行MainFrame這個(gè)類即可。
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(); // 實(shí)例化Calendar
MainFrame() {
super("萬年歷");
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);// 將顯示的字符設(shè)置為居中
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()); // 得到當(dāng)前所選年份
c_month = Integer.parseInt(com2.getSelectedItem().toString()) - 1; // 得到當(dāng)前月份，并減1,計(jì)算機(jī)中的月為0－11
c_week = use(c_year, c_month); // 調(diào)用函數(shù)use，得到星期幾
Resetday(c_week, c_year, c_month); // 調(diào)用函數(shù)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); // 將星期日的日期設(shè)置為紅色
}
for (int i = 6; i 49; i = i + 7) {
label[i].setForeground(Color.green);// 將星期六的日期設(shè)置為綠色
}
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)); // 得到當(dāng)前時(shí)間的月份
year = (int) (now.get(Calendar.YEAR)); // 得到當(dāng)前時(shí)間的年份
com1.setSelectedIndex(year - 1); // 設(shè)置下拉列表顯示為當(dāng)前年
com2.setSelectedIndex(month_num); // 設(shè)置下拉列表顯示為當(dāng)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); // 設(shè)置時(shí)間為所要查詢的年月的第一天
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; // 存儲(chǔ)月份的天數(shù)
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); // 前個(gè)月
month_day_score = cal.getActualMaximum(Calendar.DAY_OF_MONTH);// 最后一天
for (int i = 7; i 49; i++) { // 初始化標(biāo)簽
label[i].setText("");
}
week_log = week_log + 6; // 將星期數(shù)加6，使顯示正確
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;
//顯示時(shí)間的類：Clock
/** *//**
* Clock.java
* Summary 數(shù)字時(shí)間顯示
* 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); //實(shí)例化線程
t.start(); //調(diào)用線程
}
public void run(){
while(true){
try{
Thread.sleep(1000); //休眠1秒鐘
}catch(InterruptedException e){
System.out.println("異常");
}
this.repaint(100);
}
}
public void paint(Graphics g){
Font f=new Font("宋體",Font.BOLD,16);
SimpleDateFormat SDF=new SimpleDateFormat("yyyy'年'MM'月'dd'日'HH:mm:ss");//格式化時(shí)間顯示類型
Calendar now=Calendar.getInstance();
time=SDF.format(now.getTime()); //得到當(dāng)前日期和時(shí)間
g.setFont(f);
g.setColor(Color.orange);
g.drawString(time,45,25);
}
}
import javax.swing.JOptionPane;
public class NewClass{
public static void main(String[] args){
int year,month;
Calender cal=new Calender(2008,10);
cal.showCalender();
year=Integer.parseInt(JOptionPane.showInputDialog("Year:"));
month=Integer.parseInt(JOptionPane.showInputDialog("Month:"));
cal.setYear(year);
cal.setMonth(month);
cal.showCalender();
}
}
class Calender{
private int year,month;
public Calender(){
year=0;
month=1;
}
public Calender(int year){
this.year=year;
month=1;
}
public Calender(int year,int month){
this.year=year;
if(month12)
this.month=month%12;
else
this.month=month;
}
public void setYear(int year){
this.year=year;
}
public void setMonth(int month){
if(month12)
this.month=month%12;
else
this.month=month;
}
private int dayOfMonth(){
int days=0;
switch(month){
case 1:days=31;break;
case 2:{
if(((year%4==0)(year%100!=0))||(year%400==0))
days=29;
else
days=28;
break;
}
case 3:days=31;break;
case 4:days=30;break;
case 5:days=31;break;
case 6:days=30;break;
case 7:days=31;break;
case 8:days=31;break;
case 9:days=30;break;
case 10:days=31;break;
case 11:days=30;break;
case 12:days=31;break;
default:
days=0;
}
return days;
}
private int dayOfWeek(){
int Y=year;
int M=month;
int D=1;
int A;
A = Y0?(5+(Y+1)+(Y-1)/4-(Y-1)/100+(Y-1)/400)%7:(5+Y+Y/4-Y/100+Y/400)%7;
A = M2?(A+2*(M+1)+3*(M+1)/5)%7:(A+2*(M+2)+3*(M+2)/5)%7;
if (((Y%4 == 0 Y%100 != 0)|| Y%400 == 0) M2) A =(A+1)%7;
A=(A+D)%7;
return A;
}
public void showCalender(){
String str=new String();
str=" ";
str+=year+"年"+month+"月";
str+="\n\n";
str+="日 一 二 三 四 五 六\n";
int week=this.dayOfWeek();
for(int i=0,j=1;i7;i++){
if(iweek)
str+=" ";
else{
str+=" "+j+" ";
j++;
}
}
str+="\n";
end:
for(int i=7-week+1;i=this.dayOfMonth();){
for(int j=0;j7;j++){
if(i10)
str+=" "+i+" ";
else
str+=i+" ";
i++;
if(ithis.dayOfMonth())
break end;
}
str+="\n";
}
JOptionPane.showMessageDialog(null,str);
}
}
用一個(gè)類來實(shí)現(xiàn)
我給你貼上我在java核心技術(shù)中看到的代碼吧,當(dāng)然沒有輸入年份和月份,是按照當(dāng)前時(shí)間創(chuàng)建的,寫有我寫的注釋,應(yīng)該能看的懂
/*
* 2012年5月13日10:37:58
* 日歷程序
* Function:
* 顯示當(dāng)前月份的日歷
* 總結(jié)
* 1. 0-11分別代表1-12月
* 1-7分別代表周日-周六
* 2. 使用GregorianCalendar對(duì)象的get方法（參數(shù)）獲取月，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構(gòu)造一個(gè)日期
GregorianCalendar d = new GregorianCalendar();
//獲取今天是這個(gè)月的第幾天
int today = d.get(Calendar.DAY_OF_MONTH); //Calendar.DAY_OF_MONTH作為參數(shù)調(diào)用，得到今天是這個(gè)月的第幾天
int month = d.get(Calendar.MONTH); //月份
d.set(Calendar.DAY_OF_MONTH, 1); //設(shè)置d的日期是本月的1號(hào)
int weekDay = d.get(Calendar.DAY_OF_WEEK); //獲取當(dāng)天位于本星期的第幾天，也就確定了星期幾，值的范圍是1-7
int firstDayOfWeek = d.getFirstDayOfWeek(); //獲取一星期的第一天,我們得到的是Calendar.SUNDAY,因?yàn)槲覀円恍瞧诘牡谝惶焓侵苋?/p>
int indent = 0; //為了定位本月第一天，定義索引
while (weekDay != firstDayOfWeek) {
//注意，月份用0-11代表1-12月，為了清晰起見，使用常量代替，下面獲取月份得到的實(shí)際是當(dāng)前月-1的值，所以我們要加1
//System.out.printf("當(dāng)前星期的第%d天,位于當(dāng)月的第%d天, 現(xiàn)在是%d月\n",
// weekDay, d.get(Calendar.DAY_OF_MONTH), d.get(Calendar.MONTH)+1); //Test Code
indent++;//縮進(jìn)個(gè)數(shù)+1
d.add(Calendar.DAY_OF_MONTH, -1);//當(dāng)前天數(shù)-1，如果現(xiàn)在是1號(hào)，則執(zhí)行本條代碼后，時(shí)間變?yōu)樯弦粋€(gè)月最后一天
weekDay = d.get(Calendar.DAY_OF_WEEK); //重新獲取當(dāng)天位于本星期的第幾天
}
String[] weekDayNames = new DateFormatSymbols().getShortWeekdays();//獲取簡(jiǎn)短形式的星期字符串?dāng)?shù)組
//System.out.println(weekDayNames.length);getShortWeekdays()得到的數(shù)組的長度是8，下標(biāo)為0的是沒有值1為星期日...7為星期六
//注釋代碼1
//Java核心技術(shù)的代碼
/*
do {
//System.out.printf("%4s", weekDayNames[weekDay]); //經(jīng)過上面定義索引，weekDay代表的是本星期日
d.add(Calendar.DAY_OF_MONTH, 1); //天數(shù)加1
weekDay = d.get(Calendar.DAY_OF_WEEK); //重新獲得weekDay的值
} while (weekDay != firstDayOfWeek); //當(dāng)循環(huán)完一個(gè)星期后，這里判斷不成立，退出循環(huán)
*/
//我寫的代碼，替換上面注釋代碼1
for (int i=1; iweekDayNames.length; i++)//打印星期標(biāo)題
System.out.printf("%3s\t", weekDayNames[i]);//引號(hào)內(nèi)是一個(gè)全角的空格，因?yàn)槭侵形陌?，不是書上英文環(huán)境,中文和空格對(duì)于不上,這里我們用\t解決
//System.out.printf("%3s ", weekDayNames[i]); //方式2
System.out.println();//換行
for (int i=1; i=indent; i++)//確定一星期的一天位置，利用上面indent
System.out.printf("\t");//如用方式2，則這里內(nèi)容是四個(gè)全角空格
//實(shí)現(xiàn)輸出日期
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);//天數(shù)加1
weekDay = d.get(Calendar.DAY_OF_WEEK);//刷新weekDay
if (weekDay == firstDayOfWeek) //如果這天等于星期天則換行
System.out.println();
} while (d.get(Calendar.MONTH) == month);
}
}
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