CalendarPagepublic class CalendarPage extends Object | Print a month page.
Only works for the Western calendar. |
| Fields Summary |
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| String[] | monthsThe names of the months | | public static final int[] | domThe days in each month. |
| Methods Summary |
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| public static void | main(java.lang.String[] av)For testing, a main program
int month, year;
CalendarPage cp = new CalendarPage();
// print the current month.
if (av.length == 2) {
cp.print(Integer.parseInt(av[0])-1, Integer.parseInt(av[1]));
} else {
Calendar c = Calendar.getInstance();
cp.print(c.get(Calendar.MONTH), c.get(Calendar.YEAR));
}
| | public void | print(int mm, int yy)Compute which days to put where, in the Cal panel
/** The number of days to leave blank at the start of this month */
int leadGap = 0;
System.out.print(months[mm]); // print month and year
System.out.print(" ");
System.out.print(yy);
System.out.println();
if (mm < 0 || mm > 11)
throw new IllegalArgumentException("Month " + mm + " bad, must be 0-11");
GregorianCalendar calendar = new GregorianCalendar(yy, mm, 1);
System.out.println("Su Mo Tu We Th Fr Sa");
// Compute how much to leave before the first.
// getDay() returns 0 for Sunday, which is just right.
leadGap = calendar.get(Calendar.DAY_OF_WEEK)-1;
int daysInMonth = dom[mm];
if (calendar.isLeapYear(calendar.get(Calendar.YEAR)) && mm == 1)
++daysInMonth;
// Blank out the labels before 1st day of month
for (int i = 0; i < leadGap; i++) {
System.out.print(" ");
}
// Fill in numbers for the day of month.
for (int i = 1; i <= daysInMonth; i++) {
// This "if" statement is simpler than fiddling with NumberFormat
if (i<=9)
System.out.print(' ");
System.out.print(i);
if ((leadGap + i) % 7 == 0) // wrap if end of line.
System.out.println();
else
System.out.print(' ");
}
System.out.println();
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