Question

c++ please :)

First, ask the user to enter a year (4-digit) and what week day does this year starts with (String) For example, the year 2018 starts with the week day "Friday". In this case, the calendar should start from January 1 which is Friday, 2018 Your program should produce a formatted calendar for the specified year and there should be a blank line after each month. Moreover, the month and the year should be centered over each month. Your program should reject any year that is less than 1000 or greater than 9999. Your program should handle a leap year correctly Development notes: . You can use the predefined function "setwO" from the library "iomanip". "setwO" allows you to pass a number and your output will be intended the number of spaces you passed to "setw" 2. Before every month, print the week days: "Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat" 3. Remember that the first day of each month has to be indented to the correct column. The last day of every month determines the first day of the next month. (Hint: Modulus operations make this calculation easy.) 4. To make it easier, you can convert the input string to upper case directly by using the predefined function "toupper)" or to lower case by using "tolower)" 5. To check if a year is a leap year then I If the year is evenly divisible by 4, go to step 2. Otherwise, go to step 5 II. If the year is evenly divisible by 100, go to step 3. Otherwise, go to step 4. III If the year is evenly divisible by 400, go to step 4. Otherwise, go to step 5. IV. The year is a leap year (it has 366 days). V. The year is not a leap year (it has 365 days).

Answer 1

#include <iostream>

#include <cstdlib>

#include <cmath>

#include <cstring>

using namespace std;

//Function declarations

void printOneMonth(int year,int month,int dayOfWeek);

bool isLeapYear(int year);

int GetYear();

int GetStartDayNember();

int DayPerMonth(int MonthNumber, int Year);

int main()

{

//Declaring variables

int getFirstDay;

int year;

  

//Getting the year entered by the user

year=GetYear();

getFirstDay=GetStartDayNember();

  

  

/* This for loop will display each month

* calender by calling the function

*/

for(int i=1;i<=12;i++)

{

printOneMonth(year,i,getFirstDay);

}

  

  

return 0;

}

//This function will display the month calender

void printOneMonth(int year,int month,int getFirstDay)

{

int days = 0;

string monthName;

days=DayPerMonth(month,year);

  

// Declaring string array

const string months[] = { "January", "February", "March", "April", "May", "June", "July",

"August", "September", "October", "November", "December" };

  

monthName=months[month-1];

  

cout << "\t"<<monthName<< " " << year << endl;

cout << "__________________________________" << endl;

cout << " Sun Mon Tue Wed Thu Fri Sat" << endl;

int i = 0;

int firstDay = 0;

  

  

switch (month)

{

case 1:

firstDay = getFirstDay;

break;

case 2:

firstDay = getFirstDay + 3;

break;

case 3:

firstDay = getFirstDay + 3;

break;

case 4:

firstDay = getFirstDay + 6;

break;

case 5:

firstDay = getFirstDay + 8;

break;

case 6:

firstDay = getFirstDay + 11;

break;

case 7:

firstDay = getFirstDay + 13;

break;

case 8:

firstDay = getFirstDay + 16;

break;

case 9:

firstDay = getFirstDay + 19;

break;

case 10:

firstDay = getFirstDay + 21;

break;

case 11:

firstDay = getFirstDay + 24;

break;

case 12:

firstDay = getFirstDay + 26;

break;

}

if(isLeapYear(year))

{

switch (month)

{

case 1:

firstDay = getFirstDay;

break;

case 2:

firstDay = getFirstDay + 3;

break;

case 3:

firstDay = getFirstDay + 4;

break;

case 4:

firstDay = getFirstDay + 7;

break;

case 5:

firstDay = getFirstDay + 9;

break;

case 6:

firstDay = getFirstDay + 12;

break;

case 7:

firstDay = getFirstDay + 14;

break;

case 8:

firstDay = getFirstDay + 17;

break;

case 9:

firstDay = getFirstDay + 20;

break;

case 10:

firstDay = getFirstDay + 22;

break;

case 11:

firstDay = getFirstDay + 25;

break;

case 12:

firstDay = getFirstDay + 27;

break;

}

}

int dayOfWeek = 0;

if ((firstDay % 7) >= 0)

{

if ((firstDay % 7) == 0)

{

dayOfWeek = 0;

}

else if ((firstDay % 7) == 1)

{

dayOfWeek = 1;

cout << " ";

}

else if ((firstDay % 7) == 2)

{

dayOfWeek = 2;

cout << "\t ";

}

else if ((firstDay % 7) == 3)

{

dayOfWeek = 3;

cout << "\t\t";

}

else if ((firstDay % 7) == 4)

{

dayOfWeek = 4;

cout << "\t\t ";

}

else if ((firstDay % 7) == 5)

{

dayOfWeek = 5;

cout << "\t\t\t";

}

else if ((firstDay % 7) == 6)

{

dayOfWeek = 6;

cout << "\t\t\t ";

}

}

for (i = 1; i <= days; i++)

{

if (i < 10)

cout << " " << i;

else

cout << " " << i;

if ((i + firstDay) % 7 == 0)

cout << endl;

}

cout << endl;

  

}

/* This function will check whether

* the year is leap year or not

*/

bool isLeapYear(int year)

{

if (year % 400 == 0){   

return true;

}

if (year % 100 == 0){   

return false;

}

  

if (year % 4 == 0){

return true;

}

return false;

}

int GetYear()

{

int year;

while(true)

{

cout<<"Enter Year :";

cin>>year;

if(cin.fail())

{

cout<<"** Invalid.Must be Numeric **"<<endl;

cin.clear();

cin.ignore(256, '\n');

}

else if(year<1000 || year>9999)

{

cout<<"** Invalid.Must be between 1000-9999 **"<<endl;

}

else

{

break;

}

}

return year;

}

int GetStartDayNember()

{

string week[]={"sunday","monday","tuesday","wednesday","thursday","friday","saturday"};

string s;

int flag=0;

while(true)

{

cout<<"Enter day of the week :";

cin>>s;

for (int i = 0; i < s.size(); i++)

{

if (s.at(i) >= 65 && s.at(i) <= 90)

{

s.at(i) = s.at(i) + 32;

}

}

for(int i=0;i<s.size();i++)

{

if(s.compare(week[i])==0)

{

flag=1;

return i;

}

}

if(flag==0)

{

cout<<"** Invalid.Please check the Spelling **"<<endl;

cin.clear();

cin.ignore(256, '\n');

}

}

}

int DayPerMonth(int MonthNumber, int Year)

{

// Declaring an array and initializing corresponding days in the month

int months[] = { 31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31 };

if(isLeapYear(Year))

{

if(MonthNumber==2)

return 29;

else

return months[MonthNumber-1];

}

else

{

return months[MonthNumber-1];

}

}

________________________

Output:

C: Program Files (x86)\Dev-Cpp MinGW64 bin CalenderValidateYrMonthSta... dune 2019 Sun Mon Tue Wed Thu Fri Sat 4 8 9 1 11 1 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 July 2019 Sun Mon Tue Wed Thu Fri Sat 4 8 9 10 11 12 13 14 15 16 1 18 19 20 21 22 23 24 25 26 2 28 29 30 31 August 2019 Sun Mon Tue Wed Thu Fri Sat 4 9 1 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 September 2019 Sun Mon Tue Wed Thu Fri Sat 4 9 10 11 8 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 2728 29 30 October 2019 Sun Mon Tue Wed Thu Fri Sat 4 10 11 12 13 14 15 16 1 18 19 20 21 22 23 24 25 26 27 28 29 30 31

CProgram Files (x86)\Dev-Cpp\MinGW64 bi in'CalenderValidateYearMonthSta. November 2019 Sun Mon Tue Wed Thu Fri Sat 6 9 1 11 12 13 14 15 16 1 18 19 20 21 22 23 24 25 26 27 4 8 28 29 30 December 2019 Sun Mon Tue Wed Thu Fri Sat 4 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 6 8 26 2728 29 30 31 Process exited after 16.32 seconds with return ualue 0 Press any key to continue .. .