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建议封装函数，使用数组完成所有的打印
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比如获取天数，getDays(int year,int month)
获取星期，getDay(int allDays)
获取极度,getQuater(int month)
然后打印重载写print方法，传入的flag不同打印年 嫉妒等
//日历存放列表
ListString list = new ArrayListString();
//日期格式
SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd");
//月初
Calendar begin=Calendar.getInstance();
begin.set(Calendar.YEAR, year);
begin.set(Calendar.MONTH, month-1);
begin.set(Calendar.DAY_OF_MONTH,1);
System.out.println(format.format(begin.getTime()));
//月末
Calendar end = Calendar.getInstance();
end.setTime(begin.getTime());
end.add(Calendar.MONTH, 1);
end.add(Calendar.DAY_OF_MONTH,-1);
System.out.println(format.format(end.getTime()));
//创建日历
while(end.compareTo(begin)=0){
list.add(format.format(begin.getTime()));
begin.add(Calendar.DAY_OF_MONTH, 1);
}
//显示日历
for(String date : list){
System.out.println(date);
}
加分吧！！！！
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
public class MyCalendar extends JApplet {
public static final String WEEK_SUN = "SUN";
public static final String WEEK_MON = "MON";
public static final String WEEK_TUE = "TUE";
public static final String WEEK_WED = "WED";
public static final String WEEK_THU = "THU";
public static final String WEEK_FRI = "FRI";
public static final String WEEK_SAT = "SAT";
public static final Color background = Color.white;
public static final Color foreground = Color.black;
public static final Color headerBackground = Color.blue;
public static final Color headerForeground = Color.white;
public static final Color selectedBackground = Color.blue;
public static final Color selectedForeground = Color.white;
private JPanel cPane;
private JLabel yearsLabel;
private JSpinner yearsSpinner;
private JLabel monthsLabel;
private JComboBox monthsComboBox;
private JTable daysTable;
private AbstractTableModel daysModel;
private Calendar calendar;
public MyCalendar() {
cPane = (JPanel) getContentPane();
}
public void init() {
cPane.setLayout(new BorderLayout());
calendar = Calendar.getInstance();
//calendar = Calendar.getInstance();
yearsLabel = new JLabel("Year: ");
yearsSpinner = new JSpinner();
yearsSpinner.setEditor(new JSpinner.NumberEditor(yearsSpinner, "0000"));
yearsSpinner.setValue(new Integer(calendar.get(Calendar.YEAR)));
yearsSpinner.addChangeListener(new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
int day = calendar.get(Calendar.DAY_OF_MONTH);
calendar.set(Calendar.DAY_OF_MONTH, 1);
calendar.set(Calendar.YEAR, ((Integer) yearsSpinner.getValue()).intValue());
int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
calendar.set(Calendar.DAY_OF_MONTH, day maxDay ? maxDay : day);
updateView();
}
});
JPanel yearMonthPanel = new JPanel();
cPane.add(yearMonthPanel, BorderLayout.NORTH);
yearMonthPanel.setLayout(new BorderLayout());
yearMonthPanel.add(new JPanel(), BorderLayout.CENTER);
JPanel yearPanel = new JPanel();
yearMonthPanel.add(yearPanel, BorderLayout.WEST);
yearPanel.setLayout(new BorderLayout());
yearPanel.add(yearsLabel, BorderLayout.WEST);
yearPanel.add(yearsSpinner, BorderLayout.CENTER);
monthsLabel = new JLabel("Month: ");
monthsComboBox = new JComboBox();
for (int i = 1; i = 12; i++) {
monthsComboBox.addItem(new Integer(i));
}
monthsComboBox.setSelectedIndex(calendar.get(Calendar.MONTH));
monthsComboBox.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
int day = calendar.get(Calendar.DAY_OF_MONTH);
calendar.set(Calendar.DAY_OF_MONTH, 1);
calendar.set(Calendar.MONTH, monthsComboBox.getSelectedIndex());
int maxDay = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
calendar.set(Calendar.DAY_OF_MONTH, day maxDay ? maxDay : day);
updateView();
}
});
JPanel monthPanel = new JPanel();
yearMonthPanel.add(monthPanel, BorderLayout.EAST);
monthPanel.setLayout(new BorderLayout());
monthPanel.add(monthsLabel, BorderLayout.WEST);
monthPanel.add(monthsComboBox, BorderLayout.CENTER);
daysModel = new AbstractTableModel() {
public int getRowCount() {
return 7;
}
public int getColumnCount() {
return 7;
}
public Object getValueAt(int row, int column) {
if (row == 0) {
return getHeader(column);
}
row--;
Calendar calendar = (Calendar) MyCalendar.this.calendar.clone();
calendar.set(Calendar.DAY_OF_MONTH, 1);
int dayCount = calendar.getActualMaximum(Calendar.DAY_OF_MONTH);
int moreDayCount = calendar.get(Calendar.DAY_OF_WEEK) - 1;
int index = row * 7 + column;
int dayIndex = index - moreDayCount + 1;
if (index moreDayCount || dayIndex dayCount) {
return null;
} else {
return new Integer(dayIndex);
}
}
};
daysTable = new CalendarTable(daysModel, calendar);
daysTable.setCellSelectionEnabled(true);
daysTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
daysTable.setDefaultRenderer(daysTable.getColumnClass(0), new TableCellRenderer() {
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected,
boolean hasFocus, int row, int column) {
String text = (value == null) ? "" : value.toString();
JLabel cell = new JLabel(text);
cell.setOpaque(true);
if (row == 0) {
cell.setForeground(headerForeground);
cell.setBackground(headerBackground);
} else {
if (isSelected) {
cell.setForeground(selectedForeground);
cell.setBackground(selectedBackground);
} else {
cell.setForeground(foreground);
cell.setBackground(background);
}
}
return cell;
}
});
updateView();
cPane.add(daysTable, BorderLayout.CENTER);
}
public static String getHeader(int index) {
switch (index) {
case 0:
return WEEK_SUN;
case 1:
return WEEK_MON;
case 2:
return WEEK_TUE;
case 3:
return WEEK_WED;
case 4:
return WEEK_THU;
case 5:
return WEEK_FRI;
case 6:
return WEEK_SAT;
default:
return null;
}
}
public void updateView() {
daysModel.fireTableDataChanged();
daysTable.setRowSelectionInterval(calendar.get(Calendar.WEEK_OF_MONTH),
calendar.get(Calendar.WEEK_OF_MONTH));
daysTable.setColumnSelectionInterval(calendar.get(Calendar.DAY_OF_WEEK) - 1,
calendar.get(Calendar.DAY_OF_WEEK) - 1);
}
public static class CalendarTable extends JTable {
private Calendar calendar;
public CalendarTable(TableModel model, Calendar calendar) {
super(model);
this.calendar = calendar;
}
public void changeSelection(int row, int column, boolean toggle, boolean extend) {
super.changeSelection(row, column, toggle, extend);
if (row == 0) {
return;
}
Object obj = getValueAt(row, column);
if (obj != null) {
calendar.set(Calendar.DAY_OF_MONTH, ((Integer)obj).intValue());
}
}
}
public static void main(String[] args) {
JFrame frame = new JFrame("Calendar Application");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
MyCalendar myCalendar = new MyCalendar();
myCalendar.init();
frame.getContentPane().add(myCalendar);
frame.setSize(240, 172);
frame.show();
}
}
t.set(year-1900,month,1);
改成
t.set(year, month-1, 1); //year没什么说的，mouth从0开始，1月既是0月