Using arrays in C.
From: Tonytt (tonytt1_at_msn.com)
Date: 11/16/03
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Date: 16 Nov 2003 10:47:15 -0800
Hi,
I'm pretty new to c-programming and am taking a course in it. I'm
trying to write a menu program using functions and a two-dimensional
array. The program consists of entering 4 test grades for 10 students.
The array is initialized with -1 in the beginning - this is because if
a student did not take a test yet I want to be able to sort and find
this out. There is a menu option to enter grades which calls a
function in order to enter the student - 1-10, the test number 1-4 and
the grade. The problem I am running into is I want to display a
message to prompt the user that there is a grade already present if
the grade was entered before - and allow the user to replace the grade
or leave it as is. here is that part of the code:
int enterInfo (int, int, double)
{ while (1)
{
int Stud_Num,
Exam_Num,
Grade_Num,
response,
response1;
cout << "Please Enter a Student Number > ";
cin >> Stud_Num;
if ((Stud_Num <1) || (Stud_Num >10))
{
cout << "\n\nInvalid entry, Please try again! \n";
return Stud_Num;
}
else
cout << "\nPlease Enter an Exam Number > ";
cin >> Exam_Num;
if ((Exam_Num <1) || (Exam_Num >4))
{
cout << "\n\nInvalid entry, Please try again! \n";
return Exam_Num;
}
else
cout << "\nPlease Enter a Grade > ";
cin >> Grade_Num;
//if ((Grade_Num >=0) && (Grade_Num <=100))
//{
//cout << "\nStudent already has a grade entered for this exam. \n";
//cout << "\nDo you want to replace the grade? Enter 1 for Yes or 0
for no: \n ";
//cin >> response;
// if (response == 1)
// return Grade_Num;
// }
// else
// return response;
if ((Grade_Num <0) || (Grade_Num >100))
{
cout << "\n\nInvalid entry, Please try again! \n";
return Grade_Num;
}
else
cout << "\nDo you want to enter another grade?: \n";
cout << "\nEnter 1 for Yes or 0 for No > ";
cin >> response1;
if (response1 != 0)
int main();
else
return response1;
}
}
Can anyone please explain to me how to include this in my program or
what I'm doing wrong?
BTW - A working model is located at this website:
as.sunyorange.edu/~insttg/
55171EF C Programming
Grades Program With Multiple Function Calls
There is no source code but you're able to run the completed program
and understand what I'm trying to do. Thanks...
TonyT.
- Next message: Thomas Stegen: "Re: Structures, Pointer and gets"
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- Next in thread: Richard Heathfield: "Re: Using arrays in C."
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