Newbie in C++ and error with run program

**Daydream** · 12-01-2008

Hi all,,,

I'm using Visual C++ 2008 and i made small program with console application to calculate student mark

And the problem is "when I run the program this window coming"
Error Image

And I checked the path in the same folder for projects I saw it like this
C:\Documents and Settings\Mohammad\My Documents\Visual Studio 2008\Projects\why\sss\sss\Debug\sss.exe

How can I solve this problem?

**matsp** · 12-01-2008

You probably have to post your code.

--
Mats

**Daydream** · 12-01-2008

Code:

#include <iostream.h>
using namespace std;

int grade;		// Declaring Variable

void main ()
{
cout << "Enter Student Mark >";	// To show "Enter Student Mark >" on screen
cin >> grade;	// To Enter Student Mark

// Testing Mark
if (grade > 100 || grade < 0) {cout << "Wronge Value";}
else
	if (grade >= 90) {cout << "A";}
	else
		if (grade >= 80) {cout << "B";}
		else
			if (grade >= 70) {cout << "C";}
			else
				if (grade >= 60) {cout << "D";}
				else
					{cout << "F";}
}

I checked in the university it was working but in my home it is not working!

**Akkernight** · 12-01-2008

That's a very messy code o.o
All those else, if, else, if, need cleaning

ever heard of else if?
Other than that I dunno about error :P

**anon** · 12-01-2008

There are a few things wrong.

Code:

#include <iostream.h>

C++ standard headers don't have an extension, so it's <iostream>

Code:

void main ()

The correct signature is

Code:

int main()

Perhaps your home compiler didn't compile the code because of that and you indeed don't have the executable.

Other notes: I don't think you need to keep indenting with else ifs, and the variable grade has no reason being a global (better declare in main).

**Daydream** · 12-01-2008

Thank you very much

I wrote it like this

Code:

#include <iostream>
using namespace std;
int main()
{
int grade;
cout << "Enter Student Mark >";	// To show "Enter Student Mark >" on screen
cin >> grade;	// To Enter Student Mark

// Testing Mark
if (grade > 100 || grade < 0) {cout << "Wronge Value";}
else
	if (grade >= 90) {cout << "A";}
	else
		if (grade >= 80) {cout << "B";}
		else
			if (grade >= 70) {cout << "C";}
			else
				if (grade >= 60) {cout << "D";}
				else
					{cout << "F";}
return 0;
}

now its running but when i write any mark it is exit the window to the c++ without grade

what is the problem?

This if and else for our lesson in the university

**Dino** · 12-01-2008

Try adding " << endl ;" to the end of your cout instructions, as in

cout << "F" << endl ;

**Daydream** · 12-01-2008

Thank you Dino

but same problem

not showing the grade

**Akkernight** · 12-01-2008

Well, do you mean the window just shuts down, or is the grade not getting outputted onto the screen?

**Daydream** · 12-01-2008

window started ok and i wrote the mark but grade not getting outputted onto the screen

**Noise** · 12-01-2008

It's because once you enter the mark the program just runs through finishes, without giving you enough time to see the grade. Try adding this to the end of your program:

Code:

int nothing;
cin >> nothing;

**Daydream** · 12-01-2008

Thank you Noise now it's ok

**Cherry65** · 12-01-2008

well you should add something like

Code:

system("PAUSE");

this adds at the end of your script a message that says: "Press any key to continue..." so when you press a key it exits...

**Noise** · 12-01-2008

Yes I forgot about that one

**Elysia** · 12-02-2008

Originally Posted by Cherry65

well you should add something like

Code:

system("PAUSE");

this adds at the end of your script a message that says: "Press any key to continue..." so when you press a key it exits...

No, don't. Unportable and unnecessary.
Instead, hit Ctrl+F5 or Run without Debug.
The window will stay open after the application quits.

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