[Solved] Program gives unstable output? [closed]

by


New code that works:

#include <stdio.h>
#include <conio.h>
#include <string.h>
#include <stdlib.h>
#include <time.h>


int main()
{
int i,j=0,code,amt, key,lines=0;
int id[100],stock[100],k=0;
char name[100][20],product[100];
float price[100],sum;
float total=0;  
char ipname[100][20];
int quantity[100], ch;
float ipprice[100];
float ipsub[100];

FILE*fp1;

fp1=fopen("Fruit.txt","r");
if(fp1==NULL)
{
    printf("ERROR in opening file\n");
    return 1;
}
else
{
while((ch=getc(fp1))!=EOF)
    {
        if(ch=='\n')
        lines++;
    }
}
    fclose(fp1);

fp1=fopen("Fruit.txt","r");
if(fp1==NULL){
               printf("ERROR in opening file\n");
               return 1;
               }
               else
               {

               for(i=0;i<lines;i++){
                                    fgets(product,sizeof(product),fp1);
                              id[i]=atoi(strtok(product,","));
                             strcpy(name[i],strtok(NULL,","));
                             price[i]=atof(strtok(NULL,","));
                             stock[i]=atoi(strtok(NULL,"\n"));

                         }
                                }
                                    fclose(fp1);

printf("=============================================================\n");
for(i=0;i<lines;i++)
{
printf("%d:%-10s\t",i+1,name[i]);
}
printf("\n\n%-5s%-20s%-15s%-10s%s\n","No.","Product","Price","Quantity","Subtotal");
printf("%-5s%-20s%-15s%-10s%s\n","===","=======","=====","========","========");

do{  
k=0;
if(j>0)
{
system("cls");
}
if(j>0)
{
    printf("=============================================================\n");
    for(i=0;i<lines;i++)
{
printf("%d:%-10s\t",i+1,name[i]);
}
printf("\n\n%-5s%-20s%-15s%-10s%s\n","No.","Product","Price","Quantity","Subtotal");
printf("%-5s%-20s%-15s%-10s%s\n","===","=======","=====","========","========");
    for(k=0;k<j;k++)
    {
printf("%-5d%-20s%-15.2f%-10d%.2f\n",k+1,
ipname[k],ipprice[k],quantity[k],ipsub[k]);
    }
}
sum=0;
amt=0;
printf("\nProduct code:");
scanf("%d",&code);
i=code-1;
printf("Quantity:");
scanf("%d",&amt);
system("cls");
sum=price[i]*amt;
total=total+sum;
ipprice[j]=price[i];
strcpy(ipname[j],name[i]);
quantity[j]=amt;
ipsub[j]=sum;
printf("=============================================================\n");
for(i=0;i<lines;i++){
printf("%d:%-10s\t",i+1,name[i]);
}
    printf("\n\n%-5s%-20s%-15s%-10s%s\n",
"No.","Product","Price","Quantity","Subtotal");
printf("%-5s%-20s%-15s%-10s%s\n","===","=======","=====","========","========");
    for(k=0;k<=j;k++)
    {
        printf("%-5d%-20s%-15.2f%-10d%.2f\n",
k+1,ipname[k],ipprice[k],quantity[k],ipsub[k]);
    }
        printf("%d",j);
printf("\nPress ESC on keyboard to finalize the bill or Press any key continue...\n");
scanf(" %c", &key);
if(key!=27)
{
        j++;
    }
}while(key!=27);
        printf("%d",j);

                                    printf("\n%.2f\n",total);



return 0;
}

===================================================

This is how it is supposed to look like:
http://i30.photobucket.com/albums/c323/dumfuq/Screenshot37_zps81596e1a.png

The last number ’11’ is just me trying to monitor the j++ is going correctly.

1

solved Program gives unstable output? [closed]