Thread: Menu

use the function scanf in form correct:
this correct is:
scanf("%s",str); //for strings
scanf("%d",&d); //for integers and floats and doubles

Code:

#include <stdio.h>
#include <string.h>

int main()
{
char answer[20];
char answer2[20];
char choiceone[20];
char choicetwo[20];
float total;
float choice1 = 0.95;
float choice2 = 1.25;
float choice3 = 1.00;

printf("May I take your order today?\n\r");
printf("Menu:\n\r");
printf("Choice1: Fries .95\n\r");
printf("Choice2: Cheese burger $1.25\n\r");
printf("Choice3: Lemonade $1.00\n\r");
printf("Those are your choices! Choose Choice1, Choice2 or Choice3 please.\n\r", choiceone);
scanf("%s",choiceone);

if (strcmp (choiceone, "choice1"))
{
        total + choice1;
}
if (strcmp(choiceone, "choice2"))
{
        total + choice2;
}
if (strcmp (choiceone, "choice3"))
{
        total + choice3;
}

printf("You've chosen %s.\n\r", choiceone);
printf("Would you like something else?\n\r", answer);
scanf("%s", answer);

if (!strcmp (answer, "yes"))
{
        printf("Menu:\n\r");
        printf("Choice1: Fries .95\n\r");
        printf("Choice2: Cheese burger $1.25\n\r");
        printf("Choice3: Lemonade $1.00\n\r");
        printf("Those are your choices! Choose one of those please.\n\r", choiceone);
        scanf("%s",choiceone);

        printf("You've chosen %s.\n\r", choiceone);
        scanf("%s", choiceone);
        printf("Anything else for you today?\n\r", answer);
        scanf("%s",choicetwo);
        return;
}

else if (!strcmp (answer, "no"))
{
        printf("Your total comes to %f", total);
}

return 0;
}

im pretty sure i got the scanf's right, read my initialized numbers/strings...

%d is for an integer whole number
%f is a floating point number
%c single character
%s string of chars
%p a memory address

But thanks for your time

Code:

#include <stdio.h>
#include <string.h>

int main()
{
   char answer[20];
   char answer2[20];
   char choiceone[20];
   char choicetwo[20];
   float total;
   float choice1 = 0.95;
   float choice2 = 1.25;
   float choice3 = 1.00;

   printf("May I take your order today?\n\r");
   printf("Menu:\n\r");
   printf("Choice1: Fries .95\n\r");
   printf("Choice2: Cheese burger $1.25\n\r");
   printf("Choice3: Lemonade $1.00\n\r");
   printf("Those are your choices! Choose Choice1, Choice2 or Choice3 please.\n\r", choiceone);
/*
Too many arguments for format (1 too many)
*/
   scanf("%s");
/*
Too few arguments for format (1 missing)
*/

   if ( strcmp (choiceone, "choice1") )
   {
      total + choice1;
/*
Code has no effect in function main
Possible use of 'total' before definition in function main
*/
   }
   if ( strcmp(choiceone, "choice2") )
   {
      total + choice2;
/*
Code has no effect in function main
*/
   }
   if ( strcmp (choiceone, "choice3") )
   {
      total + choice3;
/*
Code has no effect in function main
*/
   }

   printf("You've chosen %s.\n\r", choiceone);
   printf("Would you like something else?\n\r", answer);
/*
Too many arguments for format (1 too many)
*/
   scanf("%s", answer);
   if ( !strcmp (answer, "yes") )
   {
      printf("Menu:\n\r");
      printf("Choice1: Fries .95\n\r");
      printf("Choice2: Cheese burger $1.25\n\r");
      printf("Choice3: Lemonade $1.00\n\r");
      printf("Those are your choices! Choose one of those please.\n\r", choiceone);
/*
Too many arguments for format (1 too many)
*/
      scanf("%s");
/*
Too few arguments for format (1 missing)
*/

      printf("You've chosen %s.\n\r", choiceone);
      scanf("%s", choiceone);
      printf("Anything else for you today?\n\r", answer);
/*
Too many arguments for format (1 too many)
*/
      scanf("%s");
/*
Too few arguments for format (1 missing)
*/
      return;
/*
function 'main(void)' should return a value
*/
   }

   else if ( !strcmp (answer, "no") )
   {
      printf("Your total comes to %f", &total);
/*
Size of argument no. 2 inconsistent with format
*/
   }

   return 0;
}
/*
'choicetwo' is declared but never used in function main
'answer2' is declared but never used in function main
*/

Originally Posted by <3pi

Code:

printf("Those are your choices! Choose Choice1, Choice2 or Choice3 please.\n\r", choiceone);
scanf("%s");

if (strcmp (choiceone, "choice1"))

I believe strcmp is case sensitive, so it might not be a bad idea to prompt your user to enter a choice that begins with a lowercase C since that is what you're checking for. (i.e. Choice != choice)
Also, you are not using scanf properly. You're scanning in a string, fine. But where are you putting it?
Oh, the \r's aren't necessary on the printf's either.

dinjas