Write a program that prompts the user to enter the year and month

Question

( C++ )

Write a program that prompts the user to enter the year and month, and displays the number of days in the month. For example, if the user entered month 2 and year 2000, the program should display that February 2009 has 29 days. If the user entered month 3 and year 2005, the program should display that March 2010 has 31 days

Answer 1

using namespace std;

#include <iostream>

int Go(int month, int year)

{

int iReturn=0;

switch (month)

{

case 1 : { cout << "January"; break; }

case 2 : { cout << "February"; break; }

case 3 : { cout << "March"; break; }

case 4 : { cout << "April"; break; }

case 5 : { cout << "May"; break; }

case 6 : { cout << "June"; break; }

case 7 : { cout << "July"; break; }

case 8 : { cout << "August"; break; }

case 9 : { cout << "September"; break; }

case 10 : { cout << "October"; break; }

case 11 : { cout << "November"; break; }

case 12 : { cout << "December"; break; }

}

cout << " " << year << " : " ;

switch (month)

{

case 9:

case 4:

case 6:

case 11:

{

cout << "30 days" << endl;

break;

}

case 1:

case 3:

case 5:

case 7:

case 8:

case 10:

case 12:

{

cout << "31 days" << endl;

break;

}

case 2:

{

if ((year %4)==0)

{

if ((year % 400) ==0)

{

cout << "29 days" << endl;

}

else

{

if ((year %100)==0)

{

cout << "28 days " << endl;

}

else

{

cout << "29 days" << endl;

}

}

}

else

{

cout << "28 days " << endl;

}

}

default:

{

//should not happen

iReturn=-1;

}

}

return(iReturn);

}

int main()

{

int month=-1;

while ((month<1) || (month>12))

{

cout << "Please input the month :>";

cin >> month;

}

int year=-1;

while (year<0)

{

cout << "Please input the year :>";

cin >> year;

}

Go(month,year);

}