Java Utililty Methods Day From

List of utility methods to do Day From

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Description

The list of methods to do Day From are organized into topic(s).

Method

intdays(int month, int year)
days 
if (month == 2)
    return 28 + ((year % 4 == 0) ? 1 : 0) - ((year % 4 == 100) ? 1 : 0);
if (month < 8)
    return 30 + (month % 2);
return 31 - (month % 2);
intdays(int num)
days 
return hours(24 * num);
intdays(int year, int month)
days 
int total = 30;
switch (month) {
case 1:
case 3:
case 5:
case 7:
case 8:
case 10:
...
intdaysAfter(Date earlierDate, Date laterDate)
days After 
final Calendar earlier = CALENDAR;
final Calendar later = CALENDAR2;
if (laterDate.before(earlierDate))
    return 0;
earlier.setTime(earlierDate);
later.setTime(laterDate);
int daysLater = later.get(Calendar.DAY_OF_YEAR) - earlier.get(Calendar.DAY_OF_YEAR);
for (int year = earlier.get(Calendar.YEAR); year < later.get(Calendar.YEAR); year++) {
...
FloatdaysAndHours(int hours)
Converts hours to days and hours. 
int days, hrs;
String s = null;
days = Math.abs(hours) / 24;
hrs = Math.abs(hours) % 24;
if (hrs < 10)
    s = days + ".0" + hrs;
else
    s = days + "." + hrs;
...
longdaysBetweenTime(long start, long end)
days Between Time 
if (start > end) {
    return -1;
long term = end - start;
return term / (1000 * 60 * 60 * 24);
intdaysInFebruary(int year)
Given integer argument year, returns number of days in February of that year. 
return (((year % 4 == 0) && ((!(year % 100 == 0)) || (year % 400 == 0))) ? 29 : 28);
intdaysInMonthForYear(int commonMonthIndex, int yearInteger)
Answer the number of days in the month named monthName in the year yearInteger. 
int monthIndex = commonMonthIndex - 1;
return DaysInMonth[monthIndex] + ((monthIndex == 1) ? leapYearBalance(yearInteger) : 0);
intdaysOfTwo(Date date1, Date date2)
days Of Two 
Calendar aCalendar = Calendar.getInstance();
aCalendar.setTime(date1);
int day1 = aCalendar.get(Calendar.DAY_OF_YEAR);
aCalendar.setTime(date2);
int day2 = aCalendar.get(Calendar.DAY_OF_YEAR);
return day2 - day1;
ListdaysSince(Date since)
days Since 
List<Date> list = new ArrayList<Date>();
Date today = getMidnight(new Date());
for (Date d = getMidnight(since); d.before(today)
        || d.equals(today); d = newDateFrom(d, Calendar.DAY_OF_YEAR, 1)) {
    list.add(d);
return list;