JulianDatepublic class JulianDate extends GregorianCalendar | Extend GregorianCalendar to provide Julian date.
An example of a class that adds methods, but no data |
| Fields Summary |
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| public static final int[] | dom |
| Constructors Summary |
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JulianDate()
super();
| JulianDate(int yy, int mm, int dd)
super(yy,mm,dd);
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| Methods Summary |
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| private void | dump()
System.out.println("Date is " + getTime());
System.out.println("The year " + (isLeapYear(get(YEAR))?"is":"is not") +
" a leap year");
System.out.println("The day of year is " + getDayOfYear());
| | public int | getDayOfYear()getDayOfYear returns the Julian "DayOfYear": Jan 1 = 0,
December 31 = 365 or 366.
int t = 0;
/* Add up months so far, not including current month. */
for (int i = 0; i<get(MONTH); i++)
t += dom[i];
if (isLeapYear(get(YEAR)) && get(MONTH) > 1)
t++;
t += get(DAY_OF_MONTH); // Days so far this month.
return t;
| | public static void | main(java.lang.String[] args)
new JulianDate().dump();
new JulianDate(1951, 04-1, 24).dump();
new JulianDate(2000, 00, 01).dump();
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