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// Grades.cpp
#include <iostream>
#include <conio.h>
#include <string>
using namespace std;
int main(){
const float ENGLISH_MIDTERM_PERCENTAGE = .25;
const float ENGLISH_FINALEXAM_PERCENTAGE = .25;
const float ENGLISH_RESEARCH_PERCENTAGE = .30;
const float ENGLISH_PRESENTATION_PERCENTAGE = .20;
const float MATH_MIDTERM_PERCENTAGE = .5F;
const float MATH_FINALEXAM_PERCENTAGE = .50;
const float SCIENCE_MIDTERM_PERCENTAGE = .40;
const float SCIENCE_FINALEXAM_PERCENTAGE = .40;
const float SCIENCE_RESEARCH_PERCENTAGE = .20;
int midterm = 0;
int finalExamGrade = 0;
int research = 0;
int presentation = 0;
float finalNumericGrade = 0;
char finalLetterGrade;
char response[256];
string moreGradesToCalculate;
cout << "Would you like to calculate a grade? ";
cin >> moreGradesToCalculate;
for (int i = 0; i < moreGradesToCalculate.length(); i++){
moreGradesToCalculate[i] = toupper(moreGradesToCalculate[i]);
}
while (moreGradesToCalculate == "YES"){
//What type of student are we calculating?
cout << "Enter student type (1=English, 2=Math, 3=Science): "; //This is where it is messing up for me and goes into the "You must select a Student Type
cin.getline(response,256);
if (strlen(response) == 0){
cout << "You must select a Student Type";
_getch(); //Will need removed before project is finished!
return 1;
}
if ((atoi(response) < 1) || (atoi(response) > 3)){
cout << response << " - is not a valid Student Type.";
_getch(); //Will need removed before project is finished!
return 1;
}
//Student Type is valid, now let's calculate the grade
switch(atoi(response)){
//Case 1 is English Student
case 1:
cout << "Enter the Midterm Grade: ";
cin.getline(response,256);
midterm = atoi(response);
cout << "Enter the Final Examination Grade: ";
cin.getline(response,256);
finalExamGrade = atoi(response);
cout << "Enter the Research Grade: ";
cin.getline(response,256);
research = atoi(response);
cout << "Enter the Presentation Grade: ";
cin.getline(response, 256);
presentation = atoi(response);
finalNumericGrade = (midterm * ENGLISH_MIDTERM_PERCENTAGE) +
(finalExamGrade * ENGLISH_FINALEXAM_PERCENTAGE) +
(research * ENGLISH_RESEARCH_PERCENTAGE) +
(presentation * ENGLISH_PRESENTATION_PERCENTAGE);
if (finalNumericGrade >= 93)
finalLetterGrade = 'A';
else if ((finalNumericGrade >= 85) && (finalNumericGrade < 93))
finalLetterGrade = 'B';
else if ((finalNumericGrade >= 78) && (finalNumericGrade < 85))
finalLetterGrade = 'C';
else if ((finalNumericGrade >= 70) && (finalNumericGrade < 78))
finalLetterGrade = 'D';
else if (finalNumericGrade < 70)
finalLetterGrade = 'F';
cout << endl;
cout << "*** ENGLISH STUDENT ***" << endl << endl;
cout << "Midterm grade is: " << midterm << endl;
cout << "Final grade is: " << finalExamGrade << endl;
cout << "Research grade is: " << research << endl;
cout << "Presentation grade is: " << presentation << endl;
cout << "Final Numeric Grade is: " << finalNumericGrade << endl;
cout << "Final Letter Grade is: " << finalLetterGrade;
break;
//Case 2 is Math Student
case 2:
cout << "Enter Midterm grade: ";
cin.getline(response,256);
midterm = atoi(response);
cout << "Enter Final Exam grade: ";
cin.getline(response,256);
finalExamGrade = atoi(response);
finalNumericGrade = (midterm * MATH_MIDTERM_PERCENTAGE) +
(finalExamGrade * MATH_FINALEXAM_PERCENTAGE);
if (finalNumericGrade > 90)
finalLetterGrade = 'A';
else if ((finalNumericGrade >= 83) && (finalNumericGrade < 90))
finalLetterGrade = 'B';
else if ((finalNumericGrade >= 76) && (finalNumericGrade < 83))
finalLetterGrade = 'C';
else if ((finalNumericGrade >= 65) && (finalNumericGrade < 76))
finalLetterGrade = 'D';
else if (finalNumericGrade < 65)
finalLetterGrade = 'F';
cout << endl;
cout << "*** MATH STUDENT ***" << endl << endl;
cout << "Midterm grade is: " << midterm << endl;
cout << "Final grade is: " << finalExamGrade << endl;
cout << "Final Numeric Grade is: " << finalNumericGrade << endl;
cout << "Final Letter Grade is: " << finalLetterGrade;
break;
//Case 3 is Science Student
case 3:
cout << "Enter Midterm grade: ";
cin.getline(response,256);
midterm = atoi(response);
cout << "Enter Final Exam grade: ";
cin.getline(response,256);
finalExamGrade = atoi(response);
cout << "Enter Research grade: ";
cin.getline(response,256);
research = atoi(response);
finalNumericGrade = (midterm * SCIENCE_MIDTERM_PERCENTAGE) +
(finalExamGrade * SCIENCE_FINALEXAM_PERCENTAGE) +
(research * SCIENCE_RESEARCH_PERCENTAGE);
if (finalNumericGrade > 90)
finalLetterGrade = 'A';
else if ((finalNumericGrade >= 80) && (finalNumericGrade < 90))
finalLetterGrade = 'B';
else if ((finalNumericGrade >= 70) && (finalNumericGrade < 80))
finalLetterGrade = 'C';
else if ((finalNumericGrade >= 60) && (finalNumericGrade < 70))
finalLetterGrade = 'D';
else if (finalNumericGrade < 60)
finalLetterGrade = 'F';
cout << endl;
cout << "*** SCIENCE STUDENT ***" << endl << endl;
cout << "Midterm grade is: " << midterm << endl;
cout << "Final grade is: " << finalExamGrade << endl;
cout << "Research grade is: " << research << endl;
cout << "Final Numeric Grade is: " << finalNumericGrade << endl;
cout << "Final Letter Grade is: " << finalLetterGrade;
break;
default:
cout << response << " - is not a valid Student Type.";
return 1;
} //End of Switch
cout << "Grade another student? ";
cin >> moreGradesToCalculate;
for (int i = 0; i < moreGradesToCalculate.length(); i++){
moreGradesToCalculate[i] = toupper(moreGradesToCalculate[i]);
} //End for loop
} //End while loop
_getch(); //Will need removed before project is finished!
return 0; //end of main()
}
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