Displaying the first day of each month in java

Exercise4_28.java

import java.util.Scanner;

// Displaying the first day of each month.

public class Exercise4_28 {
    public static void main (String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.println("Please enter the year: ");
        int year = input.nextInt();
        System.out.println("Please enter the day number: ");
        int firstday = input.nextInt();
        int numberOfDaysInMonth = 0;
        for (int month = 1; month <= 12; month++) {
            switch (month) {
                case 1 : System.out.print("January 1 " + year + " is ");
                    numberOfDaysInMonth = 31;
                    break;
                case 2 : System.out.print("February 1 " + year + " is ");
                    if (year % 4 == 0) numberOfDaysInMonth = 29;
                    else numberOfDaysInMonth = 28;
                    break;
                case 3: System.out.print("March 1 " + year + " is ");
                    numberOfDaysInMonth = 31;
                    break;
                case 4: System.out.print("April 1 " + year + " is ");
                    numberOfDaysInMonth = 30;
                    break;
                case 5: System.out.print("May 1 " + year + " is ");
                    numberOfDaysInMonth = 31;
                    break;
                case 6: System.out.print("June 1 " + year + " is ");
                    numberOfDaysInMonth = 30;
                    break;
                case 7: System.out.print("July 1 " + year + " is ");
                    numberOfDaysInMonth = 31;
                    break;
                case 8: System.out.print("August 1 " + year + " is ");
                    numberOfDaysInMonth = 31;
                    break;
                case 9: System.out.print("September 1 " + year + " is ");
                    numberOfDaysInMonth = 30;
                    break;
                case 10: System.out.print("October 1 " + year + " is ");
                    numberOfDaysInMonth = 31;
                    break;
                case 11: System.out.print("November 1 " + year + " is ");
                    numberOfDaysInMonth = 30;
                    break;
                case 12: System.out.print("December 1 " + year + " is ");
                    numberOfDaysInMonth = 31;
                    break;

            }
            switch (firstday) {
                case 0 : System.out.println("Sunday.");
                   break;
                case 1 : System.out.println("Monday.");
                    break;
                case 2 : System.out.println("Tuesday.");
                    break;
                case 3 : System.out.println("Wednesday.");
                    break;
                case 4 : System.out.println("Thursday.");
                    break;
                case 5 : System.out.println("Friday.");
                    break;
                case 6 : System.out.println("Saturday.");
                    break;
            }
            firstday = (firstday + numberOfDaysInMonth) % 7;
        }
    }
}