PLEASE help me with ODD #\'s!! 5 & 7! PLEASE show work and C# ONLY! THANKS! 5. a

Question

PLEASE help me with ODD #'s!! 5 & 7! PLEASE show work and C# ONLY! THANKS!

5. a. Write a program named Ch If the value entered is greater than 12 or less than 1, display a eckMonth that prompts a user to enter a birth HIU onerwise, display the valid month with a message such as 3 is a valid mon b. Write a program named C month with a message such as 3 is a valid month. and day. Display an error message if the month is invalid (no heckMonth2 that prompts a user to enter a birth month t 1 through 12) or the day is invalid for the month (for example, not between 1 and 31 for January or between 1 and 29 for February). If Account numbers sometimes contain a check digit that is the the month and day are valid, display them with a message. 6. result of a mathematical calculation. The inclusion of the digit in an account number helps ascertain the number is a valid one. Write an application named CheckDigit ti to enter a four-digit account number and The number whether at asks a user determines whether it is a valid number. is valid if the fourth digit is the remainder when the number represented the first three digits of the four-digit number is divided by 7. For example, 7770 valid, because 0 is the remainder when 777 is divided by 7. The next problems rely on the generation of a random number. You o create a random number that is at least min but less than max using the following statements: an Random ranNumberGenerator new RandomO int randomNumber; randomNumber = ranNumberGene rator. Next (min, max); Write a program named GuessingGame that generates a random number between 1 and 10. (In other words, in the example above, min is 1 and max is 11.) Ask a user to guess the random number, then display the random number and a message indicating whether the user's guess was too high, too low, or correct. 7.

Explanation / Answer

5)

a)

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

namespace ConsoleApplicationc
{
    class CheckMonth
    {
        static public int birthMonth;
        static void Main(string[] args)
        {
            Console.WriteLine("Please enter the Birth Month: ");
            birthMonth = Convert.ToInt32(Console.ReadLine());
            if (birthMonth > 12 || birthMonth < 1)
            {
                Console.WriteLine("Error: Not a valid Month");
            }
            else
            {
                Console.WriteLine(birthMonth + " is a valid Month");
            }

            Console.ReadLine();

        }
    }
}

OUTPUT:

Please enter the Birth Month:
3
3 is a valid Month

b)

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

namespace ConsoleApplicationc
{
    class CheckMonth2
    {
        static public int birthMonth;
        static public int day;
        static void Main(string[] args)
        {
            Console.WriteLine("Please enter the Birth Month: ");
            birthMonth = Convert.ToInt32(Console.ReadLine());
            Console.WriteLine("Please enter the Day: ");
            day = Convert.ToInt32(Console.ReadLine());
            if (birthMonth > 12 || birthMonth < 1)
            {
                Console.WriteLine("Error: Not a valid Month");
                Console.ReadLine();
                return ;
            }
            if (birthMonth == 2 && day < 1 || day > 29)
            {
                Console.WriteLine("Not a valid day for month");
            }
            else if (day < 1 || day > 31)
            {
                Console.WriteLine("Not a valid day for month");
            }
            else
            {
                Console.WriteLine(birthMonth +" Month and "+day +" day are valid.");
            }
      

            Console.ReadLine();

        }
    }
}

OUTPUT:

Please enter the Birth Month:
2
Please enter the Day:
28
2 Month and 28 day are valid.

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