package example; import java.util.Scanner; public class DayOfWeek { public static void main(String args[]){ Scanner input = new Scanner(System.in); System.out.print("Enter a year : "); int year = input.nextInt(); System.out.print("Enter a month (1-12) : "); int month = input.nextInt(); System.out.print("Enter the day of month (1-31) : "); int day = input.nextInt(); if(day == 1) day = 13; if(day == 2) day = 14; int century = year / 100; int yearOfTheCentury = year % 100; int dayOfWeek = (day + 26*(month+1)/10 + yearOfTheCentury + yearOfTheCentury/4 + century/4 + (5*century) ) % 7; switch(dayOfWeek){ case 0 : System.out.println("Saturday"); break; case 1 : System.out.println("Sunday"); break; case 2 : System.out.println("Monday"); break; case 3 : System.out.println("Tuesday"); break; case 4 : System.out.println("Wednesday"); break; case 5 : System.out.println("Thursday"); break; case 6 : System.out.println("Friday"); break; } } }