怎樣用java編寫日歷

import java.awt.BorderLayout;

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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();

}

}

java核心技術(shù)的日歷程序，模仿著寫出來發(fā)現(xiàn)一個(gè)星期的第一天是星期日，試了各種方法都改不了，附代碼

你的問題就是把一周的第一天設(shè)置為星期一？

那你貼這么多代碼干嘛，一句話的事兒?jiǎn)岵皇?。建議你多看一下api

Calendar里面的方法就有啊， setFirstDayOfWeek

JAVA日歷的看法心得體會(huì)…原代碼如下

import java.awt.BorderLayout;

import java.awt.Color;

import java.awt.GridLayout;

import java.awt.Panel;

import java.awt.event.ItemEvent;

import java.awt.event.ItemListener;

import java.util.Calendar;

import javax.swing.JComboBox;

import javax.swing.JFrame;

import javax.swing.JLabel;

import javax.swing.JPanel;

public class DateCalendar extends JFrame implements ItemListener{

private static final long serialVersionUID = 1L;

private JComboBox year;

private JComboBox month;

private JLabel l[];

Calendar c=Calendar.getInstance();

public DateCalendar() {

year=new JComboBox();

for (int i = 1990; i 2020; i++) {

year.addItem(i+"");

}

month=new JComboBox();

for (int i = 1; i =12; i++) {

month.addItem(i+"");

}

JPanel p=new JPanel();

p.add(new JLabel("請(qǐng) 選 擇:"));

p.add(year);

p.add(new JLabel("年 "));

p.add(month);

p.add(new JLabel("日 "));

JPanel p1=new JPanel();

l=new JLabel[49];

for (int i = 0; i l.length; i++) {

l[i]=new JLabel("");

l[i].setHorizontalAlignment(JLabel.CENTER);

p1.add(l[i]);

}

l[0].setText("日");

l[1].setText("一");

l[2].setText("二");

l[3].setText("三");

l[4].setText("四");

l[5].setText("五");

l[6].setText("六");

year.addItemListener(this);

month.addItemListener(this);

p1.setLayout(new GridLayout(7,7));

this.init();

this.getContentPane().add(p1);

this.getContentPane().add(p,BorderLayout.NORTH);

this.setSize(200, 300);

this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

this.pack();

this.setLocation(400, 200);

this.setVisible(true);

}

//第一次實(shí)例化對(duì)象時(shí),把面板信息顯示為當(dāng)前月的信息

public void init(){

nian=c.get(Calendar.YEAR);

yue=c.get(Calendar.MONTH)+1;

ri=c.get(Calendar.DAY_OF_MONTH);

year.setSelectedItem(nian+"");

month.setSelectedItem(yue+"");

this.setCalendar();//調(diào)用顯示面板信息設(shè)置

}

int nian,yue,ri;

//下拉事件

public void itemStateChanged(ItemEvent e) {

c.set(Calendar.YEAR,Integer.parseInt(year.getSelectedItem().toString()));

c.set(Calendar.MONTH,Integer.parseInt(month.getSelectedItem().toString())-1);

this.setCalendar();

}

//設(shè)置顯示面板的信息

public void setCalendar(){

for (int i = 7; i l.length; i++) {

l[i].setText("");

l[i].setForeground(Color.BLACK);

}

c.set(Calendar.DAY_OF_MONTH, 1);

for (int i = 1; i =this.getDay(c.get(Calendar.YEAR), c.get(Calendar.MONTH)+1); i++) {

l[5+i+c.get(Calendar.DAY_OF_WEEK)].setText(i+"");

if(nian==c.get(Calendar.YEAR)yue==c.get(Calendar.MONTH)+1ri==i){

l[5+i+c.get(Calendar.DAY_OF_WEEK)].setForeground(Color.BLUE);

}

}

}

//判斷天數(shù)

public int getDay(int y,int m){

if(m==1||m==3||m==5||m==7||m==8||m==10||m==12){

return 31;

}

if(m==4||m==6||m==9||m==11){

return 30;

}

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

return 29;

}else{

return 28;

}

}

public static void main(String[] args){

new DateCalendar().setTitle("日歷顯示");

}

}

java swing 日歷控件怎么實(shí)現(xiàn) 最好是源碼

源代碼：

//DatePicker.java

package?com.kxsoft.component;

import?java.awt.*;

import?java.awt.event.*;

import?java.util.GregorianCalendar;

import?java.util.Date;

import?java.util.Calendar;

import?java.text.DateFormat;

import?java.text.FieldPosition;

import?javax.swing.*;

import?javax.swing.plaf.BorderUIResource;

public?final?class?DatePicker?extends?JPanel?{

private?static?final?long?serialVersionUID?=?1L;

private?static?final?int?startX?=?10;

private?static?final?int?startY?=?60;

private?static?final?Font?smallFont?=?new?Font("Dialog",?Font.PLAIN,?10);

private?static?final?Font?largeFont?=?new?Font("Dialog",?Font.PLAIN,?12);

private?static?final?Insets?insets?=?new?Insets(2,?2,?2,?2);

private?static?final?Color?highlight?=?new?Color(255,?255,?204);

private?static?final?Color?white?=?new?Color(255,?255,?255);

private?static?final?Color?gray?=?new?Color(204,?204,?204);

private?Component?selectedDay?=?null;

private?GregorianCalendar?selectedDate?=?null;

private?GregorianCalendar?originalDate?=?null;

private?boolean?hideOnSelect?=?true;

private?final?JButton?backButton?=?new?JButton();

private?final?JLabel?monthAndYear?=?new?JLabel();

private?final?JButton?forwardButton?=?new?JButton();

private?final?JLabel[]?dayHeadings?=?new?JLabel[]{

new?JLabel("日"),

new?JLabel("一"),

new?JLabel("二"),

new?JLabel("三"),

new?JLabel("四"),

new?JLabel("五"),

new?JLabel("六")};

private?final?JLabel[][]?daysInMonth?=?new?JLabel[][]{

{new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel()},

{new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel()},

{new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel()},

{new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel()},

{new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel()},

{new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel(),

new?JLabel()}

};

private?final?JButton?todayButton?=?new?JButton();

private?final?JButton?cancelButton?=?new?JButton();

public?DatePicker()?{

super();

selectedDate?=?getToday();

init();

}

public?DatePicker(final?Date?initialDate)?{

super();

if?(null?==?initialDate)

selectedDate?=?getToday();

else

(selectedDate?=?new?GregorianCalendar()).setTime(initialDate);

originalDate?=?new?GregorianCalendar(

selectedDate.get(Calendar.YEAR),

selectedDate.get(Calendar.MONTH),

selectedDate.get(Calendar.DATE));

init();

}

public?boolean?isHideOnSelect()?{

return?hideOnSelect;

}

public?void?setHideOnSelect(final?boolean?hideOnSelect)?{

if?(this.hideOnSelect?!=?hideOnSelect)?{

this.hideOnSelect?=?hideOnSelect;

initButtons(false);

}

}

public?Date?getDate()?{

if?(null?!=?selectedDate)

return?selectedDate.getTime();

return?null;

}

private?void?init()?{

setLayout(new?AbsoluteLayout());

this.setMinimumSize(new?Dimension(161,?226));

this.setMaximumSize(getMinimumSize());

this.setPreferredSize(getMinimumSize());

this.setBorder(new?BorderUIResource.EtchedBorderUIResource());

backButton.setFont(smallFont);

backButton.setText("");

backButton.setMargin(insets);

backButton.setDefaultCapable(false);

backButton.addActionListener(new?ActionListener()?{

public?void?actionPerformed(final?ActionEvent?evt)?{

onBackClicked(evt);

}

});

add(backButton,?new?AbsoluteConstraints(10,?10,?20,?20));

monthAndYear.setFont(largeFont);

monthAndYear.setHorizontalAlignment(JTextField.CENTER);

monthAndYear.setText(formatDateText(selectedDate.getTime()));

add(monthAndYear,?new?AbsoluteConstraints(30,?10,?100,?20));

forwardButton.setFont(smallFont);

forwardButton.setText("");

forwardButton.setMargin(insets);

forwardButton.setDefaultCapable(false);

forwardButton.addActionListener(new?ActionListener()?{

public?void?actionPerformed(final?ActionEvent?evt)?{

onForwardClicked(evt);

}

});

add(forwardButton,?new?AbsoluteConstraints(130,?10,?20,?20));

int?x?=?startX;

for?(int?ii?=?0;?ii??dayHeadings.length;?ii++)?{

dayHeadings[ii].setOpaque(true);

dayHeadings[ii].setBackground(Color.LIGHT_GRAY);

dayHeadings[ii].setForeground(Color.WHITE);

dayHeadings[ii].setHorizontalAlignment(JLabel.CENTER);

add(dayHeadings[ii],?new?AbsoluteConstraints(x,?40,?21,?21));

x?+=?20;

}

x?=?startX;

int?y?=?startY;

for?(int?ii?=?0;?ii??daysInMonth.length;?ii++)?{

for?(int?jj?=?0;?jj??daysInMonth[ii].length;?jj++)?{

daysInMonth[ii][jj].setOpaque(true);

daysInMonth[ii][jj].setBackground(white);

daysInMonth[ii][jj].setFont(smallFont);

daysInMonth[ii][jj].setHorizontalAlignment(JLabel.CENTER);

daysInMonth[ii][jj].setText("");

daysInMonth[ii][jj].addMouseListener(new?MouseAdapter()?{

public?void?mouseClicked(final?MouseEvent?evt)?{

onDayClicked(evt);

}

});

add(daysInMonth[ii][jj],?new?AbsoluteConstraints(x,?y,?21,?21));

x?+=?20;

}

x?=?startX;

y?+=?20;

}

initButtons(true);

calculateCalendar();

}

private?void?initButtons(final?boolean?firstTime)?{

if?(firstTime)?{

final?Dimension?buttonSize?=?new?Dimension(68,?24);

todayButton.setText("今天");

todayButton.setMargin(insets);

todayButton.setMaximumSize(buttonSize);

todayButton.setMinimumSize(buttonSize);

todayButton.setPreferredSize(buttonSize);

todayButton.setDefaultCapable(true);

todayButton.setSelected(true);

todayButton.addActionListener(new?ActionListener()?{

public?void?actionPerformed(final?ActionEvent?evt)?{

onToday(evt);

}

});

cancelButton.setText("取消");

cancelButton.setMargin(insets);

cancelButton.setMaximumSize(buttonSize);

cancelButton.setMinimumSize(buttonSize);

cancelButton.setPreferredSize(buttonSize);

cancelButton.addActionListener(new?ActionListener()?{

public?void?actionPerformed(final?ActionEvent?evt)?{

onCancel(evt);

}

});

}?else?{

this.remove(todayButton);

this.remove(cancelButton);

}

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