Question

how can I do a project in c++ for calander?

Answer 1

#include<iostream>
using namespace std;
int dayNumber(int day, int month, int year){
   static int t[] = { 0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4 };
   year -= month < 3;
   return ( year + year/4 - year/100 + year/400 + t[month-1] + day) % 7;
}
string getMonthName(int monthNumber){
   string months[] = {"January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"};
   return (months[monthNumber]);
}
int numberOfDays (int monthNumber, int year){
   switch(monthNumber){
      case 0 :
      case 2 :
      case 4 :
      case 6 :
      case 7 :
      case 9 :
      case 11: return(31);
      break;
      case 1 :
         if (year % 400 == 0 || (year % 4 == 0 && year %100 != 0))
            return (29);
         else
            return (28);
      break;
      case 3 :
      case 5 :
      case 8 :
      case 10 : return(30);
      break;
   }
}
void printCalendar(int year){
   cout<<"\t\t\t Calendar - Year "<<year;
   int days;
   int current = dayNumber (1, 1, year);
   for (int i = 0; i < 12; i++){
      days = numberOfDays (i, year);
      cout<<endl<<"\t\t ----X----"<<getMonthName (i).c_str()<<"----X---- \t\t"<<endl;
      cout<<" Sun Mon Tue Wed Thu Fri Sat\n ";
      int k;
      for (k = 0; k < current; k++)
         cout<<"\t";
      for (int j = 1; j <= days; j++){
         printf("%5d", j);
         if (++k > 6){
            k = 0;
            cout<<endl;
         }
      }
      if (k)
         cout<<endl;
         current = k;
      }
   return;
}
int main(){
   int year;
   printf("Enter the year to print: ");
   scanf("%d",&year);
   printCalendar(year);
   return (0);
}