// A month has five full weekends when it has 31 days, and the 1st day of the month is a Friday.
import java.time.DayOfWeek;
import java.time.LocalDate;
public class FiveFullWeekends {
// ------------------------------------------------------------
// Month names as a single reusable constant
// ------------------------------------------------------------
private static final String[] monthNames = {
"January", "February", "March", "April", "May", "June",
"July", "August", "September", "October", "November", "December"
};
// ------------------------------------------------------------
// Function: returns true if a month has 5 full weekends
// ------------------------------------------------------------
static boolean hasFiveFullWeekends(int year, int month) {
LocalDate firstDay = LocalDate.of(year, month, 1);
int daysInMonth = firstDay.lengthOfMonth();
DayOfWeek wd = firstDay.getDayOfWeek();
return (daysInMonth == 31 && wd == DayOfWeek.FRIDAY);
}
// ------------------------------------------------------------
// Main program
// ------------------------------------------------------------
public static void main(String[] args) {
int y_value = 2026;
for (int m = 1; m <= 12; m++) {
if (hasFiveFullWeekends(y_value, m)) {
System.out.println(monthNames[m - 1] + " " + y_value
+ " has five full weekends.");
}
}
}
}
/*
run:
May 2026 has five full weekends.
*/
