C coding class

So I'm taking a Intro to C coding class, and my teacher want me to do a simple code for out hw.

Code:

#include <stdio.h> int main(void) { double orLbs; int enerNum, yoNum; double orPrice, ePrice, yPrice; double tax = 0.065; orPrice = orLbs*0.95; ePrice = enerNum*1.5; yPrice = yoNum*0.75; printf("Lbs of Oranges? "); scanf("%lf", &orLbs); printf("Number of energy drinks? "); scanf("%li", &enerNum); printf("Item Cost Tax\n"); printf("Orange %.2f\n", orPrice); printf("Energy Drinks %.2f %.2f\n", ePrice, ePrice*tax); }

the problem is that it's not calculating the price correctly, what is wrong with the code?

- - - Updated - - -

btw, Im righting the code and running it on a unix server

Originally Posted by w4ssup

Okay first of you should initialize all your variables, it's a bad habit and can cause errors. Second you need to run the code that actually does the math after you get the values! Good luck on learning C.

Code:

#include <stdio.h>
int main(void)
{
	double orLbs = 0;
	int enerNum = 0, yoNum = 0;
	double orPrice = 0, ePrice = 0, yPrice = 0;
	double tax = 0.065;

	printf("Lbs of Oranges? ");
	scanf("%lf", &orLbs);
	printf("Number of energy drinks? ");
	scanf("%li", &enerNum);

	orPrice = orLbs*0.95;
	ePrice = enerNum*1.5;
	yPrice = yoNum*0.75;

	printf("Item		Cost		Tax\n");
	printf("Orange		%.2f\n", orPrice);
	printf("Energy Drinks	%.2f		%.2f\n", ePrice, ePrice*tax);
}

Originally Posted by Bitset

Okay first of you should initialize all your variables, it's a bad habit and can cause errors. Second you need to run the code that actually does the math after you get the values! Good luck on learning C.

Code:

#include <stdio.h> int main(void) { double orLbs = 0; int enerNum = 0, yoNum = 0; double orPrice = 0, ePrice = 0, yPrice = 0; double tax = 0.065; printf("Lbs of Oranges? "); scanf("%lf", &orLbs); printf("Number of energy drinks? "); scanf("%li", &enerNum); orPrice = orLbs*0.95; ePrice = enerNum*1.5; yPrice = yoNum*0.75; printf("Item Cost Tax\n"); printf("Orange %.2f\n", orPrice); printf("Energy Drinks %.2f %.2f\n", ePrice, ePrice*tax); }

I think you meant shouldn't, but thanks it works now

Research on how to use a debugger; It will help you find errors as they happen.

Originally Posted by Dave84311

Research on how to use a debugger; It will help you find errors as they happen.

Unix doesnt give me an error, and I tried googling "C code tester" or "c code analyzer" and they didnt work out so well. I use to have vs2010, but i deleted it lol

C coding class

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