This tutorial will show how to make a simple java program that will count how many day there are till Christmas. The package being used to handle the dates is java.time . If you are unfamiliar with this package here is a quick intro on how to use the package.
The Christmas Count-down Clock code works like this. The today variable gets today’s date
Variable ChristmasDay is set to December 25 2020, which is this years Christmas.
Note that if Christmas has already past for this year, the Years() in java.time is given a 1 to represent Christmas being a Full year away from the current date.
Variable p gets the difference between today’s date and next years Christmas
import java.time.LocalDate;// importing LocalDate class
import java.time.Month;// importing Month class
import java.time.Period;// importing Period class
import java.time.temporal.ChronoUnit;// importing ChronoUnit class
public class aaa {
public static void main(String[] args) {
LocalDate today = LocalDate.now();//getting current date
LocalDate ChristmasDay = LocalDate.of(2020, Month.DECEMBER, 25);// setting Christmass day
LocalDate nextXmas = ChristmasDay.withYear(today.getYear());// Next year Christmas
//Add 1 if Christmas has past this year
if (nextXmas.isBefore(today) || nextXmas.isEqual(today)) {
nextXmas = nextXmas.plusYears(1);
}
Period p = Period.between(today, nextXmas);
long p2 = ChronoUnit.DAYS.between(today, nextXmas);// nanoseconds in days till Christmas
System.out.println("There are " + p.getMonths() + " months, and " +
p.getDays() + " days until Christmas! (" +
p2 + " total)");
}
}
Output :
There are 0 months, and 19 days until Christmas! (19 total)
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