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#include <iostream>
#include <string>
#include <cctype>
using namespace std;
struct Person
{
string lastName, firstName;
};
struct GradeRec
{
float percent;
char grade;
};
struct Student
{
Person name;
int birthYear, birthMonth, birthDay;
GradeRec courseGrade;
};
void printStudent (Student student[], int count);
void assignGrade (Student student[], int count);
bool verifyString (string c);
int main()
{
int count = 0, i;
bool isString;
struct Student person[30];
do
{
for (i = 0; i < 30; i++)
{
cout << "What is student #" << count + 1 << "'s first name?"
<< "(q to quit if you are done entering at least one student)" << endl;
cin >> person[i].name.firstName;
count++;
if ((person[i].name.firstName == "q"
|| person[i].name.firstName == "Q") && count >= 1)
{
count--;
goto stop;
}
isString = verifyString(person[i].name.firstName);
while (isString == true)
{
cout << "Name can not contain numbers. Try again: ";
cin >> person[i].name.firstName;
isString = verifyString(person[i].name.firstName);
cout << endl;
}
cout << "What is " << person[i].name.firstName << "'s last name? " << endl;
cin >> person[i].name.lastName;
isString = verifyString(person[i].name.lastName);
while (isString == true)
{
cout << "Name can not contain numbers. Try again: ";
cin >> person[i].name.lastName;
isString = verifyString(person[i].name.lastName);
cout << endl;
}
cout << "What is " << person[i].name.firstName << "'s grade? (in percent)?" << endl;
cin >> person[i].courseGrade.percent;
while (cin.fail())
{
cout << "Not a valid grade. Try again: ";
cin >> person[i].courseGrade.percent;
cout << endl;
}
cout << "What is " << person[i].name.firstName << "'s birthday?"
<< "(enter as mm dd yyyy, eg 7 26 2004) " << endl;
cin >> person[i].birthMonth >> person[i].birthDay >> person[i].birthYear;
while (cin.fail())
{
cout << "Not a valid birth date. Try again: ";
cin >> person[i].birthMonth >> person[i].birthDay >> person[i].birthYear;
cout << endl;
}
cout << "Thank you.\n" << endl;
}
} while ((person[i].name.firstName != "q" || person[i].name.firstName != "Q") && count <= 30);
stop:
assignGrade(person, count);
printStudent(person, count);
cout << "Thanks for using this application! " << endl;
}
void assignGrade (Student student[], int count)
{
for (int i = 0; i < count; i++)
{
if (student[i].courseGrade.percent > 89)
student[i].courseGrade.grade = 'A';
else if (89 >= student[i].courseGrade.percent && student[i].courseGrade.percent > 79)
student[i].courseGrade.grade = 'B';
else if (79 >= student[i].courseGrade.percent && student[i].courseGrade.percent > 69)
student[i].courseGrade.grade = 'C';
else if (69 >= student[i].courseGrade.percent && student[i].courseGrade.percent > 59)
student[i].courseGrade.grade = 'D';
else
student[i].courseGrade.grade = 'F';
}
}
void printStudent (Student student[], int count)
{
for (int j = 0; j < count; j++)
{
cout << "Student #" << j + 1 << ": " << endl;
cout << "Name: " << student[j].name.firstName << " " << student[j].name.lastName << endl;
cout << "Birthdate: " << student[j].birthMonth << "/" << student[j].birthDay << "/"
<< student[j].birthYear << endl;
cout << "Grade (percent): " << student[j].courseGrade.percent << "%" << endl;
cout << "Grade (letter): " << student[j].courseGrade.grade << endl << endl;
}
}
bool verifyString (char *pass)
{
bool isDigit = false;
int i = 0;
while (pass[i])
{
if (isalpha(pass[i]))
isDigit = true;
i++;
}
return isDigit;
}
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