Stock Management System Project using C language
Introduction
The product management system was created specifically for the purpose of entering product information. The system clarifies the fundamental principle of storing and creating product information. Staff may join up as a system admin in this system, giving them full access to the system for keeping daily records. The whole project was created in the 'C' programming language, and several variables and strings were employed in its construction. Users will find it simple to use and comprehend. In the project, there are no error or warning contents. The design is so straightforward that users should have no trouble using and navigating it.
Source Code for Stock Management System Project using C language
#include<stdio.h>
#include<conio.h>
#include<string.h>
#include<ctype.h>
#include<stdlib.h>
#include<windows.h>
#include<time.h>
#define ENTER 13
#define BKSP 8
#define SPACE 32
#define TAB 9
void setcolor(int ForgC)
{ WORD wColor;
HANDLE hStdOut=GetStdHandle(STD_OUTPUT_HANDLE);
CONSOLE_SCREEN_BUFFER_INFO csbi;
if(GetConsoleScreenBufferInfo(hStdOut,&csbi))
{
wColor=(csbi.wAttributes & 0xF0)+(ForgC & 0x0F);
// SetConsoleTextAttributes(hStdOut,wColor);
SetConsoleTextAttribute(hStdOut,wColor);
}
}
struct item
{
char productname[40],productcomp[40],c;
int productid;
int price;
int Qnt;
}st;
void wel_come(void);
void title(void);
void login();
void menu(void);
void title(void);
void deleteproduct(void);
void gotoxy(short x, short y)
{
COORD pos ={x,y};
SetConsoleCursorPosition(GetStdHandle(STD_OUTPUT_HANDLE),pos);
}
void add_item();
void read_item();
void search_item();
void edit_item();
void main(void)
{
wel_come(); //call for welcome screen function
login(); //call for login function
}
void wel_come(void)
{
time_t t;
time(&t);
printf(" \n");
printf("---------------------------------------------------------------------------------------------------------\n");
printf("\t\t\t\t\t%s",ctime(&t));
printf("---------------------------------------------------------------------------------------------------------\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t==================================\t\t\t\t\t\t|\n");
printf("|\t\t\t\t|\t WELCOME TO \t |\t\t\t\t\t\t|\n");
printf("|\t\t\t\t|\tPRODUCT MGMT SYSTEM\t |\t\t\t\t\t\t|\n");
printf("|\t\t\t\t==================================\t\t\t\t\t\t|\n");
printf("|\t\t\t\t Address \t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t Number\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t \"WE BELIEVE IN QUALITY\"\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|\t\t\t\t\t\t\t\t\t\t\t\t\t\t|\n");
printf("|Press any key to continue.........\t\t\t\t\t\t\t\t\t\t|\n");
printf("---------------------------------------------------------------------------------------------------------\n");
getch();
system("cls");
}
void login()
{
int a=0,i=0;
char uname[10],c=' ';
char pword[10],code[10];
char user[10]="user";
char pass[10]="pass";
do
{
printf("\n ======================== LOGIN ======================== ");
printf(" \n USERNAME:-");
scanf("%s", &uname);
printf(" \n PASSWORD:-");
while(i<10)
{
pword[i]=getch();
c=pword[i];
if(c==13) break;
else printf("*");
i++;
}
pword[i]='\0';
//char code=pword;
i=0;
//scanf("%s",&pword);
if(strcmp(uname,"user")==0 && strcmp(pword,"pass")==0)
{
printf(" \n\n\n WELCOME TO PRODUCT MANAGEMENT SYSTEM !!!! LOGIN IS SUCCESSFUL");
printf("\n\n\n\t\t\t\tPress any key to continue...");
getch();//holds the screen
break;
}
else
{
printf("\n SORRY !!!! LOGIN IS UNSUCESSFUL");
a++;
getch();//holds the screen
}
}
while(a<=2);
if (a>2)
{
printf("\nSorry you have entered the wrong username and password for four times!!!");
getch();
}
system("cls");
menu();
}
void menu(void)
{
int choice;
system("cls");
main:
printf("\n======================== Product Management System ========================");
printf(" ");
printf(" ");
printf("\n\t\tPress <1> Add Products");
printf("\n\t\tPress <2> Delete Products");
printf("\n\t\tPress <3> Search Products");
printf("\n\t\tPress <4> Read Items");
printf("\n\t\tPress <5> Edit Items");
printf("\n\t\tPress <6> Exit!");
printf("\n\n\t\tEnter your choice[1-6]");
scanf("%i", &choice);
system("cls");
switch(choice)
{
case 1:
add_item();
break;
case 2:
deleteproduct();
break;
case 3:
search_item();
break;
case 4:
read_item();
break;
case 5:
edit_item();
break;
case 6:
printf("System Exit");
exit(0);
break;
default:
printf("Invalid Choice! System Exit\n");
getch();
}
}
void add_item()
{
int index, valid;
char c;
int a=0;
FILE *fp;
do
{
system("cls");
printf("============ Enter Product Detail ============");
int ID;//for comparing staff ID if file isnot NULL
//declaration of file variable named as sfile
fp = fopen("NextFile.dat","a+");//opening file and creating a staff.txt file to append or write
if((fp = fopen("NextFile.dat","a+"))!=NULL)//if condition to check file is NULL or not
{
I:
printf("\nProduct Code\t :");
scanf("%i",&ID);
while(fscanf(fp,"%s %s %i %i %i", st.productname, st.productcomp, &st.price, &st.productid,&st.Qnt)!=EOF)
{
/*
fscanf reads every data stored in the file
if entered staffID already exist then jumps to
position I declared inside if(sfile!=NULL) at top
*/
if(ID == st.productid)
{
printf("\n\tTHE PRODUCT CODE ALREADY EXIST.\n");
goto I;
}
}
st.productid = ID;
}
else//runs if sfile is empty
{
printf("\nProduct Code\t :");
scanf("%i",&st.productid);
}
//add product name
do
{
//printf("<<<<<<<<<<<<<<Enter Product Detail>>>>>>>>>>>>>");
fflush(stdin);
printf("\nProduct Name\t :");
gets(st.productname); // get input string
st.productname[0]=toupper(st.productname[0]);
//iterate for every character in string
for (index=0; index<strlen(st.productname); ++index)
{ //check if character is valid or not
if(isalpha(st.productname[index]))
valid = 1;
else
{
valid = 0;
break;
}
}
if (!valid)
{
printf("\n Name contain invalid character. Please 'Enter' again");
getch();
}
}while(!valid); //while end here
//Product Company
do
{
char productcomp[40];
fflush(stdin);
printf("\nProduct Company\t :");
gets(st.productcomp); // get input string
st.productcomp[0]=toupper(st.productcomp[0]);
//iterate for every character in string
for (index=0; index<strlen(st.productcomp); ++index)
{ //check if character is valid or not
if(isalpha(st.productcomp[index]))
valid = 1;
else
{
valid = 0;
break;
}
}
if (!valid)
{
printf("\n Name contain invalid character. Please 'Enter' again");
getch();
}
}while(!valid);
//productid
do
{
printf("\nPrice [10-5000]Rupees:");
scanf("%i",&st.price);
if(st.price<10 || st.price>5000)
{
printf("\n\tYou Cannot Enter the price limit [10-5000].Re-Enter.");
}
}while(st.price<10 || st.price>5000);
do
{
printf("\nQuantity [1-500]\t:");
scanf("%i",&st.Qnt);
if(st.Qnt<1 || st.Qnt>500)
{
printf("\n\tEnter Quantity[1-500] only.Re-Enter.");
}
}while(st.Qnt<1 || st.Qnt>500);
// printf("\nProduct Price\t :");
// scanf("%i", &st.price);
//printf("\nProduct ID\t :");
//scanf("%i", &st.productid);
// printf("\nProduct Quantity :");
// scanf("%i",&st.Qnt);
fp=fopen("NextFile.dat","a");
fprintf(fp,"\n%s %s %i %i %i", st.productname, st.productcomp,st.price, st.productid,st.Qnt);
fclose(fp);
printf("\nPress 'Enter' to add more item and any other key to go to main menu");
}
while((c = getch()) =='\r');
menu();
}
void search_item()
{
char target[40];
int found=0;
FILE *sfile;
sfile=fopen("NextFile.dat","r");
printf("\nEnter name to search:");
fflush(stdin);
gets(target);
target[0]=toupper(target[0]);
while (!feof(sfile) && found==0)
{
fscanf(sfile,"%s %s %i %i %i", st.productname, st.productcomp, &st.price, &st.productid,&st.Qnt);
if(strcmp(target, st.productname)==0)
{
found=1;
}
}
if(found)
{
printf("\n Record found");
printf("\nProduct Name\t\t:%s \nProduct Company\t\t:%s \nProduct Price\t\t:%i \nProduct ID\t\t:%i \nProduct Quantity\t:%i", st.productname, st.productcomp, st.price, st.productid, st.Qnt);
}
else
printf("Noo Record found");
fclose(sfile);
printf("\nPress any key to go to Main Menu!");
while((st.c = getch()) =='\r');
menu();
}
void deleteproduct(void)
{
char target[40];
int found=0;
FILE *sfile, *tfile;
sfile=fopen("NextFile.dat","r");
tfile=fopen("TempFile.dat","w+");
printf("\n Enter name to Delete: ");
fflush(stdin);
scanf("%s",target);
target[0]=toupper(target[0]);
while (fscanf(sfile,"%s %s %i %i %i\n",st.productname,st.productcomp, &st.price,&st.productid,&st.Qnt)!=EOF)
{
if(strcmp(target,st.productname)==0)
{
found=1;
}
else
{
fprintf(tfile,"%s %s %i %i %i\n", st.productname,st.productcomp, st.price,st.productid,st.Qnt);
}
}
if(!found)
{
printf("\n Record not Found");
getch();
menu();
}
else
{
printf("\n Record deleted");
}
fclose(sfile);
fclose(tfile);
remove("NextFile.dat");
rename("TempFile.dat","NextFile.dat");
printf("\nPress any key to go to Main Menu!");
while((st.c = getch()) =='\r');
menu();
}
void read_item()
{
FILE *f;
int i, q;
if((f=fopen("NextFile.dat","r"))==NULL)
{
gotoxy(10,3);
printf("NO RECORDS");
printf("\n\t\tPress any key to go back to Menu.");
getch();
menu();
}
else
{
gotoxy(0,5);
for(i=0;i<100;i++)
{
printf("-");
}
gotoxy(5,6);
printf("Product Name");
gotoxy(25,6);
printf("Product Price");
gotoxy(40,6);
printf("Product Company");
gotoxy(60,6);
printf("Product CODE");
gotoxy(80,6);
printf("Product Quantity\n");
for(i=0;i<100;i++)
{
printf("-");
}
q=8;
while(fscanf(f,"%s %s %i %i %i\n", st.productname,st.productcomp, &st.price, &st.productid,&st.Qnt)!=EOF)
{
gotoxy(5,q);
printf("%s",st.productname);
gotoxy(25,q);
printf("%i",st.price);
gotoxy(40,q);
printf("%s",st.productcomp);
gotoxy(60,q);
printf("%i",st.productid);
gotoxy(80,q);
printf("%i",st.Qnt);
q++;
}
printf("\n");
for(i=0;i<100;i++)
printf("-");
}
fclose(f);
printf("\nPress any key to go to Main Menu!");
//while((st.c = getch()) =='\r');
getch();
menu();
}
void edit_item()
{
int index, valid;
char target[40];
FILE *fp, *rp;
int a=0;
int id;
char edit;
long int size=sizeof(st);
if((fp=fopen("NextFile.dat","r+"))==NULL)
{
printf("NO RECORD ADDED.");
menu();
}
else
{
rp = fopen("TempFile.dat","a");
system("cls");
printf("Enter Product Code for edit:");
scanf("%i",&id);
fflush(stdin);
while(fscanf(fp,"%s %s %i %i %i\n", st.productname,st.productcomp, &st.price, &st.productid,&st.Qnt)!=EOF)
{
if(id==st.productid)
{
a=1;
printf("\n\t***** Record Found *****");
printf("\nProduct Name\t\t: %s",st.productname);
printf("\nProduct Company\t\t: %s",st.productcomp);
printf("\nPrice\t\t\t: %i",st.price);
printf("\nProduct Code\t\t: %i",st.productid);
printf("\nProduct Quantity\t:%i",st.Qnt);
printf("\n\n\t*** New Record ***");
do
{
fflush(stdin);
printf("\nNew Product Name\t\t: ");
gets(st.productname); // get input string
st.productname[0]=toupper(st.productname[0]);
//iterate for every character in string
for (index=0; index<strlen(st.productname); ++index)
{ //check if character is valid or not
if(isalpha(st.productname[index]))
valid = 1;
else
{
valid = 0;
break;
}
}
if (!valid)
{
printf("\n Name contain invalid character. Please 'Enter' again");
getch();
}
}while(!valid); //while end here
//Product Company
do
{
char productcomp[40];
fflush(stdin);
printf("\nNew Product Company\t\t:");
gets(st.productcomp); // get input string
st.productcomp[0]=toupper(st.productcomp[0]);
//iterate for every character in string
for (index=0; index<strlen(st.productcomp); ++index)
{ //check if character is valid or not
if(isalpha(st.productcomp[index]))
valid = 1;
else
{
valid = 0;
break;
}
}
if (!valid)
{
printf("\n Name contain invalid character. Please 'Enter' again");
getch();
}
}while(!valid);
do
{
printf("\nNew Price [10-5000]Rupees:");
scanf("%i",&st.price);
if(st.price<10 || st.price>5000)
{
printf("\n\tYou Cannot Enter the price limit [10-5000].Re-Enter.");
}
}while(st.price<10 || st.price>5000);
printf("\nEnter New Product Code\t\t:");
scanf("%i",&st.productid);
do
{
printf("\nNew Quantity [1-500]\t:");
scanf("%i",&st.Qnt);
if(st.Qnt<1 || st.Qnt>500)
{
printf("\n\tEnter New Quantity[1-500] only.Re-Enter.");
}
}while(st.Qnt<1 || st.Qnt>500);
printf("Press 'y' to edit the existing record or any key to cancel...");
edit=getche();
if(edit=='y' || edit=='Y')
{
fprintf(rp,"%s %s %i %i %i\n", st.productname, st.productcomp, st.price, st.productid,st.Qnt);
fflush(stdin);
printf("\n\n\t\tYOUR RECORD IS SUCCESSFULLY EDITED!!!");
}
}
else
{
fprintf(rp,"%s %s %i %i %i\n", st.productname, st.productcomp, st.price, st.productid,st.Qnt);
fflush(stdin);
}
}
if(!a)
{
printf("\n\nTHIS PRODUCT DOESN'T EXIST!!!!");
}
fclose(rp);
fclose(fp);
remove("NextFile.dat");
rename("TempFile.dat","NextFile.dat");
getch();
}
menu();
}
Features
- Proper Validations.
- Proper Log in system.
- Easy to add, edit, view, search and delete product details.
Output
Conclusion
In conclusion, the C programming language-based Stock Management System project was a success that made it possible to handle a stock system effectively. The use of C made it possible to create effective algorithms and data structure s, creating a system that is simple to use and efficient.
The project was able to manage a variety of activities, including managing stock levels, keeping an eye on stock movements, and producing reports. Overall, the research showed how powerful of a programming language C is for creating effective and efficient stock management systems.
