ok, im new to c++ and im writing a program that is a quiz

[nsx]

this is the program so far:
#include <iostream.h>
#include <iomanip.h>
main()
{
char a,b,c,d,character_entered;
int i,g;
float f;
i=0;
cout << "Welcome. Enter the answer that fits best." << '\n';
cout << '\n';
cout << '\n';
cout << "Question 1";
cout << '\n';
cout << '\n';
cout << "3(10+6)" << '\n';
cout << "a. 48" << '\n';
cout << "b. 32" << '\n';
cout << "c. 54" << '\n';
cout << "d. 68" << '\n';
cin >> character_entered;
switch (character_entered)
{
case 'a':

 cout << "Your right!" << '\n';

break;
case 'b':

cout << "Wrong answer the correct answer is a." << '\n';

break;
case 'c':

cout << "Wrong answer the correct answer is a." << '\n';

break;
case 'd':

 cout << "Wrong answer the correct answer is a." << '\n';

break;
default:

cout << "Illegal entry." << '\n'

;
break;
}
if (character_entered = a)
i++;
else
i;
cout << '\n';
cout << '\n';

f = i/20;
g = f*100;

cout << '\n';
      cout << '\n';

cout <<fixed<<setprecision(0)<<g<< "%";

cout << '\n';
      cout << '\n';

system ("PAUSE");
return 0;
}


I use dev-c++ 4.9.9.2, the out put is always 0% at the end even when I answer all the questions right so what am i doing wrong? (this is just some of it couldnt fit the whole program in)

[kooth]

Please use the code tags under Format.

[Moschops]

I use dev-c++ 4.9.9.2,

Please don't. The compiler it comes with is horribly out of date. Your code above will not compile on a modern, correct C++ compiler (because it is not correct C++).

if (character_entered = a)
Did you mean
if (character_entered == a)?

else
i; 

What is that supposed to do? It does nothing.

f = i/20;
i is an int. An int divided by another int will give you an int. At this point, f is set to zero. If you want f to not be zero, do not divide an int by another int.

[AbR]

f = i/20;
g = f*100;

even though you've defined f as a floating point, you're using integer division (int i/20) which always results in an integer. So unless i is more than 20 the result is 0.

Try this

f = i/20.0;
g = f*100;

[nsx]

moschops : sorry it is the compiler my teacher is making me use.
abr: didn't work

[Moschops]

sorry it is the compiler my teacher is making me use.

You have my sympathies.

didn't work

Changing f = i/20; to f = i/20.0; works on my machine. Maybe you didn't make the change, or didn't save it, or didn't recompile it, or didn't enter "a" as the input.

[Thomas Kurian]

"a" is a character, not a variable. So, use

if (character_entered == 'a')

And by the way, char a,b,c,d is unnecessary.

[nsx]

Everyone thank you so much! it works! but sadly i forgot to use a loop somewhere in the program so i have to add one in somehow.