Respuesta :
#include<iostream>
#include<string>
usingnamespace std;
void menu(); //declartion of function to show the menu
classdayType//creating the class
{
string Wdays[7];
int i;
string day;
string prDay;
string NxtDay;
string AddDays;
public:
dayType(string);//constructor with one parameter
string setday(); //declartion of function to set the day
string preday(); // declartion of function to find privious day
void Nextday(); // declartion of function to find Next day
string add(int n); // declartion of function to find after addingthenumber of days given by the user
void print(); // declartion of function to print the result
};
int main()
{
int n;
string d;
menu(); //displaying menu
cout <<"Enter the day :";
getline(cin, d); //Takes the day from the user
dayType Da(d); //creating an object of a class
Da.setday();
Da.preday();
Da.Nextday();
cout <<"Enter the No. of days to add :";
while (!(cin >> n) ||n<0) { //validation checking
cin.clear();
cin.ignore(999, '\n');
cout <<"Invalid data type! \nPlease enter No. of daysto add again :";
}
Da.add(n);
Da.print();
system("pause");
return 0;
}
dayType::dayType(stringi) :day(i){ //Defintion of a constructor with one parameter
Wdays[0] = "Mon";
Wdays[1] = "Tues";
Wdays[2] = "Wednes";
Wdays[3] = "Thurs";
Wdays[4] = "Fri";
Wdays[5] = "Satur";
Wdays[6] = "Sun";
}
stringdayType::setday() //Function to set the day
{
if (day == Wdays[0])
{
i = 0;
}
elseif (day == Wdays[1])
{
i = 1;
}
elseif (day == Wdays[2])
{
i = 2;
}
elseif (day == Wdays[3])
{
i = 3;
}
elseif (day == Wdays[4])
{
i = 4;
}
elseif (day == Wdays[5])
{
i = 5;
}
elseif (day == Wdays[6])
i = 6;
else
{
day = "Invalid Input";
i = 7;
}
return day;
}
stringdayType::preday() //Function to find the preivous day
{
if (i == 0)
prDay = Wdays[6];
elseif (i == 7)
prDay = "Invalid Input";
else
prDay = Wdays[i - 1];
return prDay;
}
voiddayType::Nextday() //Function to find Next day
{
if (i == 6)
NxtDay = Wdays[0];
elseif (i == 7)
prDay = "Invalid Input";
else
NxtDay = Wdays[i + 1];
}
stringdayType::add(intn) // function to find after adding the number of days given by the user
{
n = n + i;
while (n>= 7)
{
n = n - 7;
}
if (i == 7)
Wdays[n] = "Invalid Input ";
return AddDays = Wdays[n];
}
voiddayType::print()
{
cout << endl <<"\tDay="<< day <<"day"<< endl;
cout <<"\tPrevious day :"<< prDay <<"day"<< endl;
cout <<"\tNext day :"<< NxtDay <<"day"<< endl;
cout <<"\tAfter Adding Days :"<< AddDays <<"day"<< endl;
}
void menu() //Function to display menu
{
cout <<"******************MENU********************"<< endl;
cout <<"\tEnter 'Sun' for 'Sunday'"<< endl;
cout <<"\tEnter 'Mon' for 'Monday'"<< endl;
cout <<"\tEnter 'Tues' for 'Tuesday'"<< endl;
cout <<"\tEnter 'Wednes' for 'Wednesday'"<< endl;
cout <<"\tEnter 'Thurs' for 'Thursday'"<< endl;
cout <<"\tEnter 'Fri' for 'Friday'"<< endl;
cout <<"\tEnter 'Satur' for 'Saturday'"<< endl;
