Here is my code, we are trying to create a program to calculate gpa. How do I ge

Question

Here is my code, we are trying to create a program to calculate gpa. How do I get it to where the classes with grade of W or I are not calculated in the GPA? I have also had a few other issues. 1) When I type a class (for example programming foundations 1 causes the program to not work) if I type it as programmingfoundations1 with no spaces it works just fine? 2) How can I get spaces inbetween prompts for class 1 and class 2 so that it is easier to read and not clumped together?

#include<iostream>
#include<string>
using namespace std;

int main()
{
int i=0;
float totalScore=0;
float nclasses, score, coursescore, coursehours;
   string classname;
   string coursenumber;
   float gpa, totalhours;
char grade,coursegrade;

cout << "Enter the total number of classes you want to calculate: ";
cin >> nclasses;

   cout << "Please enter the proper information when prompted. Enter course grades as (A, B, C, D, F, W, I): " << endl;
  
   for(i = 0; i < nclasses; i++){

cout << "Enter name class " << i+1 << " :";
cin >> classname;

cout << "Enter your course number: ";
cin >> coursenumber;

       cout << "Enter your course grade: ";
       cin >> coursegrade;

       cout << "Enter course credit hours: ";
       cin >> coursehours;

       grade = coursegrade;

if(grade == 'A') score = 4;
else if(grade == 'B') score = 3;
else if(grade == 'C') score = 2;
else if(grade == 'D') score = 1;
else if(grade == 'F') score = 0;
       else if(grade == 'W'); //not used in calculation
else if(grade == 'I'); //not used in calculation
       else{
           cout << "This class will not be used in GPA calculation.";
       }   

coursescore = score * coursehours;
totalScore += coursescore;
       totalhours += coursehours;
}
gpa = (float)totalScore / totalhours;
cout << "Your GPA is: " << gpa << endl;

return 0;
}

Explanation / Answer

In order to accept spaces between class names, you need to use getline() method instead of cin. cin ignores the remaining part after the spaces whereas getline accepts the entire line containing spaces.

#include<iostream>
#include<string>
#include<stdio.h>
using namespace std;

int main()
{
int i=0;
float totalScore=0;
float nclasses, score, coursescore, coursehours;
   string classname;
   string coursenumber;
   float gpa, totalhours;
char grade,coursegrade;

cout << "Enter the total number of classes you want to calculate: ";
cin >> nclasses;

   cout << "Please enter the proper information when prompted. Enter course grades as (A, B, C, D, F, W, I): " << endl;

   for(i = 0; i < nclasses; i++){
cin.clear();    //clear the input console buffer
cin.sync();     //sync the input console buffer
cout << "Enter name class " << i+1 << " :";
getline(cin, classname);    //input string with spaces between them

cout << "Enter your course number: ";
cin >> coursenumber;

       cout << "Enter your course grade: ";
       cin >> coursegrade;

       cout << "Enter course credit hours: ";
       cin >> coursehours;

       grade = coursegrade;

if(grade == 'A') score = 4;
else if(grade == 'B') score = 3;
else if(grade == 'C') score = 2;
else if(grade == 'D') score = 1;
else if(grade == 'F') score = 0;
       else if(grade == 'W'); //not used in calculation
else if(grade == 'I'); //not used in calculation
       else{
           cout << "This class will not be used in GPA calculation.";
       }

coursescore = score * coursehours;
totalScore += coursescore;
       totalhours += coursehours;
       cout<<endl;
}
gpa = (float)totalScore / totalhours;
cout << "Your GPA is: " << gpa << endl;

return 0;
}

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