Why isn't this program running?

[kamilhassaan]

#include <iostream>
using namespace std;
int main()
{
	int quiz_1=10,quiz_2=15;
	char choice='\0',q1='\0',q2='\0';
	
	cout<<"Show marks of Quiz-1 or Quiz-2?"<<endl;
	cin>>choice;
	
	if(choice == q1)
	{
		cout<<quiz_1;
	}
	else
	{
		if(choice == q2)
		{
			cout<<quiz_2;
		}
	}
	return 0;
}

[Chervil]

Because both q1 and q2 are set to the same value, neither of which is a character which can be entered at the keyboard.

[codekiddy]

if(choice == q1) // if choice == '\0' if(choice == q2) // if choice == '\0'
you are comparing user choice with null character, this is never true. and quiz never runs.

anyway, why do you initialize q1 and q2 with '\0' ?

[kamilhassaan]

Aren't we supposed to initialize char with '\0'?
Okay now i wont initialize q1 and q2 with '\0'. Chervil and codekiddy what do you suggest that I should do with this? How can I fix this?

[codekiddy]

q1='a',q2='b';

now the user either enters letter a or letter b.

[Chervil]

I would start here:

cout<<"Show marks of Quiz-1 or Quiz-2?"<<endl;

What is the user expected to type in response to the prompt? If the user types "Quiz-1", the next line cin>>choice; will get the letter 'Q' as the value of choice. So, make it clear that only a single character should be typed, and specify what the possible choices are.

cout<<"Show marks of Quiz-1 or Quiz-2? Please enter 1 or 2:"<<endl;

Now that is clear, it should also be clear what values should be assigned to q1 and q2.