Java实现的日历（原创）

分手后的思念是犯贱 2023-08-17 15:51 148阅读 0赞

源代码：

import java.awt.\*; import javax.swing.\*; import javax.swing.border.EmptyBorder; import java.awt.event.\*; import java.util.\*; //写于2011年5月10日，星期二！2011年，5月1日是星期日 public class Calender extends JFrame implements ActionListener,MouseListener \{ private JTextField\[\] jtf\_day; private JLabel Status; private String year; private String month; private String day; private JComboBox jcb\_year; private JComboBox jcb\_month; private JButton UpMonthBt; private JButton NextMonthBt; public Calender() \{ Date date = new Date(); String\[\] str\_datetime = date.toLocaleString().split(" "); String\[\] str\_date = str\_datetime\[0\].split("-"); year = str\_date\[0\]; month = str\_date\[1\]; day = str\_date\[2\]; //System.out.println(year+" "+month); this.setTitle("日历（2011年—2022年）"); this.getContentPane().setLayout(new BorderLayout()); this.setBounds(100,100, 430, 500); JPanel UpPanel = new JPanel(); UpPanel.setLayout(new FlowLayout()); JLabel labeldata = new JLabel("日期:"); UpPanel.add(labeldata); String\[\] YearData = \{"2011","2012","2013","2014","2015","2016","2017","2018","2019","2020","2021","2022"\}; jcb\_year = new JComboBox(); for(String str:YearData) \{ jcb\_year.addItem(str); \} jcb\_year.setSelectedItem(year); jcb\_year.addActionListener(this); UpPanel.add(jcb\_year); JLabel labelyear = new JLabel("年"); UpPanel.add(labelyear); String\[\] MonthData = \{"1","2","3","4","5","6","7","8","9","10","11","12"\}; jcb\_month = new JComboBox(); for(String str:MonthData) \{ jcb\_month.addItem(str); \} jcb\_month.setSelectedItem(month); jcb\_month.addActionListener(this); UpPanel.add(jcb\_month); JLabel labelmonth = new JLabel("月"); UpPanel.add(labelmonth); UpMonthBt = new JButton("上月"); UpMonthBt.addActionListener(this); UpPanel.add(UpMonthBt); NextMonthBt = new JButton("下月"); NextMonthBt.addActionListener(this); UpPanel.add(NextMonthBt); this.getContentPane().add(UpPanel,BorderLayout.NORTH); JPanel CenterPanel = new JPanel(); CenterPanel.setLayout(new GridLayout(7,7)); JTextField\[\] jtf\_week =new JTextField\[7\]; jtf\_week\[0\] = new JTextField("日"); jtf\_week\[1\] = new JTextField("一"); jtf\_week\[2\] = new JTextField("二"); jtf\_week\[3\] = new JTextField("三"); jtf\_week\[4\] = new JTextField("四"); jtf\_week\[5\] = new JTextField("五"); jtf\_week\[6\] = new JTextField("六"); for(int i=0;i<7;i++) \{ jtf\_week\[i\].setHorizontalAlignment(JTextField.CENTER); jtf\_week\[i\].setEditable(false); //jtf\_week\[i\].addActionListener(this); //jtf\_week\[i\].addMouseListener(this); jtf\_week\[i\].setBackground(Color.gray); CenterPanel.add(jtf\_week\[i\]); \} jtf\_day = new JTextField\[42\]; for(int i=0;i<42;i++) \{ jtf\_day\[i\]= new JTextField(); jtf\_day\[i\].setEditable(false); jtf\_day\[i\].setBackground(Color.WHITE); jtf\_day\[i\].addMouseListener(this); CenterPanel.add(jtf\_day\[i\]); \} this.getContentPane().add(CenterPanel,BorderLayout.CENTER); JPanel DownPanel = new JPanel(); Status = new JLabel("日期："+year+"年"+month+"月"+day+"日"); DownPanel.add(Status); this.getContentPane().add(DownPanel,BorderLayout.SOUTH); ChangeJtf(year,month); \} private int CacalateDay(int yeartemp,int montemp) \{ int day=0; int step=-1; int\[\] mon = new int\[12\]; if(JudgeYear(yeartemp)) \{ mon\[0\]=31;mon\[1\]=29;mon\[2\]=31;mon\[3\]=30;mon\[4\]=31;mon\[5\]=30; mon\[6\]=31;mon\[7\]=31;mon\[8\]=30;mon\[9\]=31;mon\[10\]=30;mon\[11\]=31; \}else \{ mon\[0\]=31;mon\[1\]=28;mon\[2\]=31;mon\[3\]=30;mon\[4\]=31;mon\[5\]=30; mon\[6\]=31;mon\[7\]=31;mon\[8\]=30;mon\[9\]=31;mon\[10\]=30;mon\[11\]=31; \} if(yeartemp==2011&&montemp==1) \{ return 6; \}else \{ int startyear = 2011; int startmonth = 1; while(yeartemp!=startyear||montemp!=startmonth) \{ day=day+mon\[startmonth-1\]; startmonth+=1; if(startmonth==13) \{ startmonth=1; startyear++; if(JudgeYear(startyear)) \{ mon\[0\]=31;mon\[1\]=29;mon\[2\]=31;mon\[3\]=30;mon\[4\]=31;mon\[5\]=30; mon\[6\]=31;mon\[7\]=31;mon\[8\]=30;mon\[9\]=31;mon\[10\]=30;mon\[11\]=31; \}else \{ mon\[0\]=31;mon\[1\]=28;mon\[2\]=31;mon\[3\]=30;mon\[4\]=31;mon\[5\]=30; mon\[6\]=31;mon\[7\]=31;mon\[8\]=30;mon\[9\]=31;mon\[10\]=30;mon\[11\]=31; \} \} \} \} return day-1; \} private void ChangeJtf(String y,String m) \{ int yeartemp = Integer.parseInt(y); int montemp = Integer.parseInt(m); if(yeartemp==2011&&montemp==1) \{ UpMonthBt.setEnabled(false); \} if(yeartemp==2022&&montemp==12) \{ NextMonthBt.setEnabled(false); \} int day = CacalateDay(yeartemp,montemp); int\[\] mon = new int\[12\]; if(JudgeYear(yeartemp)) \{ mon\[0\]=31;mon\[1\]=29;mon\[2\]=31;mon\[3\]=30;mon\[4\]=31;mon\[5\]=30; mon\[6\]=31;mon\[7\]=31;mon\[8\]=30;mon\[9\]=31;mon\[10\]=30;mon\[11\]=31; \}else \{ mon\[0\]=31;mon\[1\]=28;mon\[2\]=31;mon\[3\]=30;mon\[4\]=31;mon\[5\]=30; mon\[6\]=31;mon\[7\]=31;mon\[8\]=30;mon\[9\]=31;mon\[10\]=30;mon\[11\]=31; \} for(int i=0;i < day%7;i++) \{ //jtf\_day\[i\].setBackground(Color.lightGray); jtf\_day\[i\].setText(""); \} for(int i = day%7,j=1;i < mon\[montemp-1\]+day%7;i++,j++) \{ jtf\_day\[i\].setText(j+""); //jtf\_day\[i\].setBackground(Color.WHITE); jtf\_day\[i\].setHorizontalAlignment(JLabel.CENTER); \} for(int i= mon\[montemp-1\]+day%7;i<42;i++) \{ //jtf\_day\[i\].setBackground(Color.lightGray); jtf\_day\[i\].setText(""); \} \} private void BtactionPerformed(ActionEvent e) \{ JButton bt = (JButton)e.getSource(); int montemp = Integer.parseInt(month); int yeartemp = Integer.parseInt(year); if(bt.getText()=="上月") \{ if(montemp==1) \{ yeartemp--; montemp=12; year = ""+yeartemp; jcb\_year.setSelectedIndex(yeartemp-2011); \} else \{ montemp--; \} month = ""+montemp; jcb\_month.setSelectedIndex(montemp-1); \} if(bt.getText()=="下月") \{ if(montemp==12) \{ montemp=1; yeartemp++; year = ""+yeartemp; jcb\_year.setSelectedIndex(yeartemp-2011); \} else \{ montemp++; \} month = ""+montemp; jcb\_month.setSelectedIndex(montemp-1); \} \} private void JcbactionPerformed(ActionEvent e) \{ int y = 2011+jcb\_year.getSelectedIndex(); int m = 1+jcb\_month.getSelectedIndex(); year = y+""; month = m+""; \} public void actionPerformed(ActionEvent e) \{ if((e.getSource()) instanceof JButton) \{ BtactionPerformed(e); \}else if((e.getSource()) instanceof JComboBox) \{ JcbactionPerformed(e); \} ChangeJtf(year,month); \} private boolean JudgeYear(int year) \{ if(year%400==0||year%4==0&&year%100!=0) \{ return true; \} else return false; \} public void mousePressed(MouseEvent e)\{\} public void mouseReleased(MouseEvent e)\{\} public void mouseClicked(MouseEvent e)\{\} public void mouseEntered(MouseEvent e) \{ JTextField jtf = (JTextField)(e.getSource()); if(!jtf.getText().equals("")) \{ jtf.setBackground(Color.BLUE); String date = "日期："+year+"年"+month+"月"+jtf.getText()+"日"; Status.setText(date); \} // System.out.println(jtf.getText()); // System.out.println("flag"); \} public void mouseExited(MouseEvent e) \{ JTextField jtf = (JTextField)(e.getSource()); if(!jtf.getText().equals("")) \{ jtf.setBackground(Color.WHITE); \} \} public static void main(String\[\] args) \{ Calender a = new Calender(); a.setVisible(true); \} \}

转载于:https://www.cnblogs.com/JPAORM/archive/2011/05/12/2510103.html