Java Milliseconds in Year

Question

I am doing some date calculations in Java using milliseconds and noticing an issue with the following:

private static final int MILLIS_IN_SECOND = 1000;
             


        

Answer 1

While others have already pointed out arithmetic overflow, you can also try TimeUnit to solve the problem:

Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.YEAR, year);
int daysInYear = calendar.getActualMaximum(Calendar.DAY_OF_YEAR);
System.out.println(TimeUnit.DAYS.toMillis(daysInYear));