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/* This is a hot mess and i know it is! went out on a limb on many of these functions. */
#include <iostream>
#include <fstream>
#include <string>
#include <iomanip>
using namespace std;
void PrintMenu();
void readin(string names[], int scores[], int &size);
float FindHighest(int scores[], int size);
float FindLowest(int scores[], int size);
float FindAverage(int scores[], int size);
void PrintRecords(string names[],int scores[], int size);
string FindID(string names[], int size, string stuID);
int main ()
{
// Print out the purpose of the program.
cout <<"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%"<< endl;
cout << endl;
cout <<"The purpose of this program is to read in grades from a file and give the ";
cout <<"user the option to print out the highest score in the file, lowest score in ";
cout <<"the file,the average score of the scores in the file, print scores of a "<< endl;
cout <<"spacific student, or print all of the scores."<< endl;
cout <<"%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%"<< endl;
cout << endl;
string filename;
ifstream myIn;
char input;
string stuID;
// ask for user file input.
cout <<" Please enter the file to the read into the program."<< endl;
cin >> filename;
// convertring string name to C string type.
myIn.open ( filename.c_str() );
//test file
while (!myIn)
{
cout << endl;
cout <<" No!!!! Try Again"<< endl;
cin >> filename;
myIn.open ( filename.c_str() );
}
cout << endl;
// read values from the file into 2 arrays
readin (names, scores, size); // <------ names, scores, and size not declared in scope.
// repeat following until user say exit.
do {
// print menu
PrintMenu();
// read option
cout<<"Please Enter the number of the selection you wish to run. [1-3]."<<endl;
cin >> input;
cout<<endl<<endl;
// perform the option
// switch statement
// switch statment to determin action for user input.
switch (input)
{
case '1':
cout <<"The highest score is: " << FindHighest(scores, size) << endl;
break;
case '2':
cout <<"The lowest score is: " << FindLowest(scores,size) << endl;
break;
case '3':
cout <<"The average of the scores is: " << setprecision(2) << FindAverage(scores, size) << endl;
break;
case '4':
cout <<" Please enter the student ID."<<endl;
cin >> stuID;
cout <<"You entered "<< stuID << endl; cout<<endl <<endl;
cout <<"Student ID and score is: "<< FindID(names, scores, size);
break;
case '5':
PrintRecords(names, scores, size);
break;
case '6':
break;
default:
PrintMenu();
cout <<"PLease enter one of the selections 1, 2, 3"<< endl;
cin >> input;
break;
}
} while (input != 6);
}
void PrintMenu()
{
cout<<"============================ MENU =============================" << endl;
cout<<"| |"<< endl;
cout<<"| 1. Find the highest score. |"<< endl;
cout<<"| 2. Find the lowest score. |"<< endl;
cout<<"| 3. Find the average of the scores. |"<< endl;
cout<<"| 4. Find the student score for the student |"<< endl;
cout<<"| ID entered by the user. |"<< endl;
cout<<"| 5. Print Student Records. |"<< endl;
cout<<"| 6. Exit |"<< endl;
cout<<"| |"<< endl;
cout<<"==============================================================="<< endl;
}
void readin(string names[], int scores[], ifstream& myIn, int &size)
{
int i=0;
myIn >> names[i] >> scores[i];
while(myIn)
{
i++;
myIn >> names[i] >> scores[i];
}
size=i;
}
float FindHighest(int scores[], int size)
{
int temp=0;
for(int j=0; j<size; j++)
{
if(scores[j]>temp)
temp=scores[j];
}
return temp;
}
float FindLowest(int scores[], int size)
{
int temp=0;
for(int j=0; j<size; j++)
{
if(scores[j]<temp)
temp=scores[j];
}
return temp;
}
float FindAverage(int scores[], int size)
{
int sum=0;
float average=0;
int count=0;
for(int j=0; j<size; j++)
{
sum+=scores[j];
count++;
}
average=sum/count;
return average;
}
void PrintRecords(string names[],int scores, int size)
{
for(int j=0; j<size; j++)
{
cout << names[j] <<' '<< scores[j] << endl;
}
}
string FindID(string names[], int size, string stuID)
{
for(int i=0; i<size; i++)
{
if(names[i]==stuID)
return names[i];
}
}
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