get day of programmer by using R
/**
* dayOfProgrammer
* American time machine test on the Russia Calendar
* return 256th day of programmer day
* exists two type calendar
* Julian Calendar
* Gregorian Calendar
* output
* that day by using simple date format dd.mm.yyy
* constriants:
* 1700<=year<=2700
* 1918 year is a special year
* the 32th day January is February 14th this year and this month is beging with 14th day
* from 1700 to 1917 using Julian Calendar
* from 1919 to 2700 using Gregorian Calendar
*
* @param year
* @return
*/
public static String dayOfProgrammer(int year) {
if (year <1700 ||year >2700) {
return null;
}
// if ()
return null;
}
/**
* get day of programmer by using Russia Julian Calendar
* 256th day of the programmer input year
* output data format: dd.mm.yyyy
* 儒略历从三月March到一月January，
* 各月的天数依次为31、30、31、30、31、30、31、30、31、30、31；
* 二月February的天数为平年29、闰年30，四年一闰
* @param year
* @return
*/
public static String dayOfProgrammerJulian(int year) {
if(!checkIsJulianYear(year)){
return null;
}
//
return null;
}
/**
* check year if is leap year
*
* @param year
* @return
*/
public static Boolean checkIsLeapYear(int year) {
if (year <1700 ||year >2700) {
return null;
}
if (year %400 ==0 || (year %4 ==0 &&year %100 !=0)) {
return true;
}
return false;
}
/**
* check year if it is Russia Julian Calendar
*
* @param year
* @return
*/
public static Boolean checkIsJulianYear(int year) {
if (year <1700 ||year >2700) {
return null;
}
if (year >=1700 &&year <=1917) {
return true;
}
return false;
}
/**
* check year if it is Russia Greborian Calendar
*
* @param year
* @return
*/
public static Boolean checkIsGregorianYear(int year) {
if (year <1700 ||year >2700) {
return null;
}
if (year >1918 &&year <=2700) {
return true;
}
return false;
}
/**
* check year if it is Russia special transmition year
*
* @param year
* @return
*/
public static Boolean checkIsRussiaSpecialTransitionYear(int year) {
if (year <1700 ||year >2700) {
return null;
}
if (year ==1918) {
return true;
}
return false;
}
