#include<iostream.h>
#include<conio.h>
#include<fstream.h>
#include<stdio.h>
#include<string.h>
#include<dos.h>
#include<stdlib.h>
void display()
{
clrscr();
cout<<"press: " ;
cout<<"\n 1:ADD RECORDS \n 2:RETRIEVE RECORDS \n 3:READ RECORDS \n 4:quit";
}
void main()
{
clrscr();
display();
char choice;
cout<<"\nEnter your Choice:";
cin>>choice;
switch (choice)
{
case '1':addrecords();break;
case '2':retrieve();break;
case '3':readrecords();break;
case '4':break;
default: cout<<"Only 1-4:";
}
getch();
}
void addrecords()
{
clrscr();
ofstream outfile;
outfile.open("data.dat");
if (!outfile)
{
cout<<"Error Accessing";
return ;
}
char letter[26]={"abcdefghijklmnopqrstuvwxyz"};
char number[10]={"0123456789"};
struct
{
char itemname[25];
char stocknumber[6];
int price;
int deliver;
int current;
}system;
int l=0,total=0,totalprice=0;
stocks:
cout<<"Enter stocknumber:";
cin>>system.stocknumber;
for (int i=0;i<system.stocknumber;i++)
{
if (i>=3&&i<6)
{ for (int k=1;k<=10;k++)
{if (system.stocknumber==number[k])
{ l++;
}}}
if (i<3)
{for (int j=0;j<26;j++)
{if (system.stocknumber==letter[j])
{l++;
}}}
}
if (l!=6)
{
cout<<"Invalid stocknumber\n";
l=0;
delay(500);
goto stocks;
}
cout<<"Enter itemname:";cin>>system.itemname;
cout<<"Enter current stock:";cin>>system.current;
deliver:
cout<<"Enter delivered stock:";cin>>system.deliver;
if (system.current>system.deliver)
{
total=system.current-system.deliver;
}
else
{
cout<<"OUT OF STOCKS\n";
delay(500);
goto deliver;
}
prices:
cout<<"\nPrice:";cin>>system.price;
if (system.price>0)
{
totalprice=total*system.price;
}
else
{cout<<"Invalid Price\n";
delay(500);
goto prices;
}
outfile.write((char *)&system,sizeof(system));
outfile.close();
}
void readrecords()
{
clrscr();
ifstream infile;
infile.open("data.dat");
infile.seekg(0);
while (!infile.eof())
{
infile.read((char*)&system,sizeof(system));
cout<<"\nstocknumber:"<<system.stocknumber;
cout<<"\nitemname:"<<system.itemname;
cout<<"\ncurrent stock:"<<system.current;
cout<<"\ndelivered stock:"<<system.deliver;
cout<<"\nprice:"<<system.price;
cout<<"\nTotal:"<<total;
cout<<"\ntotal price:"<<totalprice;
}
infile.close();
return;
}
void retrieve()
{
clrscr();
ifstream infile("data.txt");
if (!infile)
{
cout<<"eRROR accessing ";
return 0;
}
cout<<"\nEnter stocknumber to search:";
cin.get(stocknumber,6);
while(1)
{
infile.read(system.stocknumber,6);
if (infile.gcount()==0)
return 0;
if (strcmp(system.stocknumber,compare)==0)
{
infile.read(system.itemname,25)
readrecords();
}
infile.seekg(53,(seek_dir));
}
return;
}
