Question

Write a C# program that prints a calendar for a given year. Call this program calendar.

This program needs to use Switch Case in order to call the methods and format to print each month.

The program prompts the user for two inputs:

      1) The year for which you are generating the calendar.
      2) The day of the week that January first is on, you will use the following notation to set the day of the week:

     

      0 Sunday                     1 Monday                   2 Tuesday                   3 Wednesday
      4 Thursday                 5 Friday                      6 Saturday

Your program should generate a calendar similar to the one shown in the example output below. The calendar should be printed on the screen. Your program should be able to handle leap years. A leap year is a year in which we have 366 days. That extra day comes at the end of February. Thus, a leap year has 366 days with 29 days in February. A century year is a leap year if it is divisible by 400. Other years divisible by 4 but not by 100 are also leap years.

Example: Year 2000 is a leap year because it is divisible by 400.  Year 2004 is a leap year because it is divisible by 4 but not by 100.

Your program should clearly describe the functionality of each function and should display the instructions on how to run the program.

Your need to create one method “displayMonth” for print each month as required. You can choose return method or not that depend on your design.

Sample Input:

Enter the year for which you wish to generate the calendar: 2004
Enter the day of the week that January first is on: 4

Sample output:

Calendar for year 2004

January
Sun      Mon     Tue      Wed     Thu      Fri        Sat
                                                1          2          3
4          5          6          7          8          9          10
11        12        13        14        15        16        17
18        19        20        21        22        23        24
25        26        27        28        29        30        31

February
Sun      Mon     Tue      Wed     Thu      Fri        Sat
1          2          3          4          5          6          7
..         ..          ..          ..          ..          ..          ..
..          ..

Answer 1

Code

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace calendar
{
class Program
{
static void Main(string[] args)
{
string[] month = new string[] { "January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December" };
int[] days = new int[] { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };
int year,dayOfWeek;

Console.Write("Enter the year for which you wish to generate the calendar: ");
year = Convert.ToInt32(Console.ReadLine());

Console.Write("Enter the day of the week that January first is on: ");
dayOfWeek = Convert.ToInt32(Console.ReadLine());

if (isLeapYear(year))
{
days[1] += 1;
}
Console.WriteLine("Calendar for year " + year);
for (int i = 0; i <month.Length; i++)
{
Console.WriteLine("\n\n"+month[i]);
dayOfWeek=printCalender(days[i], dayOfWeek);
}
Console.WriteLine("\n\n");
}
public static int printCalender(int days, int startingDay)
{
int startDay = startingDay;

Console.WriteLine("Sun\tMon\tTue\tWed\tThu\tFri\tSat");
for(int i=0;i<startingDay;i++)
Console.Write("\t");
for (int i = 1; i <= days; i++)
{
if(startDay>6)
{
Console.WriteLine();
startDay=0;
}
Console.Write(i + "\t");
startDay++;
}
  
return startDay;
  
}
public static Boolean isLeapYear(int year)
{
if (year % 4 == 0)
{
if (year % 100 == 0)
{
// year is divisible by 400, hence the year is a leap year
if (year % 400 == 0)
return true;
else
return false;
}
else
return true;
}

return false;
}
}
}

output

another output

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