Directory:Derek Elder/Programs/Grade Calculator - Revision history

Derek Elder at 05:08, 26 February 2008

2008-02-26T05:08:43Z

Derek Elder: update

2007-12-18T04:46:32Z

update

Derek Elder at 05:05, 6 December 2007

2007-12-06T05:05:37Z

Derek Elder: start of page

2007-11-01T22:45:25Z

start of page

New page

<pre>
#include <iostream>
#include <iomanip>
#include <fstream>
#include <string>
#include <cmath>
using namespace std;

int main()
{
string first_name = string();
string last_name = string();
int test_score = 0;
int test_number = 0;
float total_score = 0.0;
bool done = false;
char grade = ' ';
char ch = ' ';

ifstream Input;
ofstream Output;
string Input_File_Name = string();
string Output_File_Name = string();

while(!done)
{
Input.clear();
cout<<"Please enter the name of your input file: ";
getline(cin,Input_File_Name);
Input.open(Input_File_Name.c_str());

if(!Input)
{
cout<<"The file name is invalid or the file is read protected.\n";
done = false;
}
else
{
cout<<"The file "<<Input_File_Name<<" exists.\n";

ch = Input.peek();

if(ch == EOF)
{
cout<<"The file "<<Input_File_Name<<" has no data in it."<<endl;
done = false;
Input.close();
}
else
{
cout<<"The file "<<Input_File_Name<<" has data in it."<<endl;
done = true;
}
}
}

done = false;

while(!done)
{
Output.clear();
cout<<"Please enter the name of your output file: ";
getline(cin,Output_File_Name);
Output.open(Output_File_Name.c_str());

if(!Output)
{
cout<<"Output file creation failed\n";
done = false;
}
else
{
cout<<"Output file creation successful\n";
done = true;
}
}

Output<<"-----------------------------Grade Calculator-----------------------------"<<endl;
Output<<endl;
Output<<"This program will process test scores to provide individuals"<<endl;
Output<<"with letter grades according to the following scale:"<<endl;
Output<<endl; // ||
Output<<" Average 90-100 A"<<endl;
Output<<" Average 80-89.9 B"<<endl;
Output<<" Average 70-79.9 C"<<endl;
Output<<" Average 60-69.9 D"<<endl;
Output<<" Average < 59.9 F"<<endl;
Output<<"--------------------------------------------------------------------------"<<endl;
Output<<"--------------------------------------------------------------------------"<<endl;

Input>>first_name>>last_name;
while(Input)
{
Output<<"Your name is :"<<first_name<<" "<<last_name<<endl;
Input>>test_score;

if(test_score < 0)
{
Output<<first_name<<" "<<last_name<<" you didn't take any tests"<<endl;
Output<<"--------------------------------------------------------------------------"<<endl;
}
else
{
Output<<"Your scores are :";
total_score = 0;
test_number = 0;
while(test_score >= 0)
{
total_score = total_score + test_score;
test_number++;
Output<<" "<<test_score;
Input>>test_score;
while(Input.fail())
{
Input.clear();
Input.ignore(100,' ');
Input>>test_score;
}
}

float test_average = total_score/test_number;

if(test_average >= 90)
grade = 'A';
else if(test_average >= 80)
grade = 'B';
else if(test_average >= 70)
grade = 'C';
else if(test_average >= 60)
grade = 'D';
else
grade = 'F';

Output<<endl<<first_name<<" "<<last_name<<", your average is "<<setprecision(1)<<fixed<<test_average
<<", and your letter grade is "<<grade<<endl;
Output<<"--------------------------------------------------------------------------"<<endl;
}
Input>>first_name>>last_name;
}
Output<<"Thank you for using this Grade Calculator.";

cout<<"Good day.\n";
Input.close();
Output.close();
return 0;
}
</pre>

@@ Line 54: / Line 54: @@
+		}
+	}
 	done = false;
@@ Line 75: / Line 74: @@
+		}
+	}
          Output<<"-----------------------------Grade Calculator-----------------------------"<<endl<<endl;
          Output<<"This program will process test scores to provide individuals"<<endl;
@@ Line 115: / Line 113: @@
+				}
+			}
 			float test_average = total_score/test_number;
@@ Line 133: / Line 130: @@
 			Output<<"--------------------------------------------------------------------------"<<endl;
+		}
-			Input>>first_name>>last_name;
+		Input>>first_name>>last_name;
+	}
 	Output<<"Thank you for using this Grade Calculator.";

@@ Line 76: / Line 76: @@
+	}
-    Output<<"-----------------------------Grade Calculator-----------------------------"<<endl;
+        Output<<"-----------------------------Grade Calculator-----------------------------"<<endl<<endl;
-    Output<<endl;
+        Output<<"This program will process test scores to provide individuals"<<endl;
-    Output<<"This program will process test scores to provide individuals"<<endl;
+        Output<<"with letter grades according to the following scale:"<<endl<<endl;
-    Output<<"with letter grades according to the following scale:"<<endl;
+        Output<<"		Average 90-100                   A"<<endl;
-    Output<<endl;                                                    //  ||
+        Output<<"		Average 80-89.9                  B"<<endl;
-    Output<<"		Average 90-100                   A"<<endl;
+        Output<<"		Average 70-79.9                  C"<<endl;
-    Output<<"		Average 80-89.9                  B"<<endl;
+        Output<<"		Average 60-69.9                  D"<<endl;
-    Output<<"		Average 70-79.9                  C"<<endl;
+        Output<<"		Average < 59.9                   F"<<endl<<endl;
-    Output<<"		Average 60-69.9                  D"<<endl;
+        Output<<"--------------------------------------------------------------------------"<<endl;
 	Input>>first_name>>last_name;