Project (CSIT114)

Assignment Date: 06.01.2006

Submit Date : 23.01.2006

THE PROJECT SHOULD BE SUBMITTED DURING THE FINAL WEEK BOTH ON FLOPPY AND PAPER.

Write a C program for a Company called stock.cpp that uses 5 functions,

creat_file(), (first create the file that the user will insert information about stock)

insert_info(), (the user will input stock information(stockName, stockNumber, buyPrice, currentPrice))

list_info() (list the original content of the file)

list_info1() (list the the file with deleted stock)

delete_info(). (delete stock from the file)

 

Your program should display a Menu as Follows:

 

Stock Menu
C – Create File
A – Add new stock
D – Delete stocks
O – List file content (without deleted stock)
L – List file content (with deleted stock)
Q – Quit

Your choice:

DATA TYPES of the variables

Stock name	1-D String (max. 15 characters)
Stock number	1-D String (max. 5 characters)
Current_price	Float number (2 digits after the decimal number)
Buy_price	Float number (2 digits after the decimal number)

 The formulae to calculate the current price:

 current_price = buy_price / 11

 

 

MY SOLUTION

 

#include <stdio.h>
#include <string.h>
void creat_file(void);
void insert_info(void);
void list_info(void);
void list_info1(void);
void delete_info(void);
main()

{
printf(”

Stock Menu
——————
“);
char secenek;
printf(” C – Create File
A – Add New Stock
D – Delete Stocks
O – List File Content(without deleted stock)
L – List File Content(with deleted stock)
Q – Quit
“);
printf(“Your Choice : “);
scanf(“%c”,&secenek);
if(secenek==’c’)
creat_file();
else if(secenek==’a’)
insert_info();
else if(secenek==’d’)
delete_info();
else if(secenek==’o’)
list_info1();
else if(secenek==’l’)
list_info();
else if(secenek==’q’)
printf(“Program Stopped”);
else
printf(“Bad Command ! Please use lowercase letters”);
}

//I am creating the file here
void creat_file()
{
   FILE *yol;

 if ( ( yol = fopen( “database.txt”, “a+” ) ) == NULL ) {
  printf( “File could not be opened
” );
 }
 else{
 printf(“File created SUCCESSFULLY”);
 }
 rewind(yol);
 fclose(yol);

}

// here is inserting info function definition
void insert_info()
{
FILE *yol;
  yol = fopen( “database.txt”, “a+” );
char stockName[15];
char stockNumber[5];
float current;
float buyprice;
printf(”
Enter the Stock Number : “);
scanf(“%s”,&stockNumber);
printf(“Enter the Stock Name : “);
scanf(“%s”,&stockName);
printf(”
Enter the Buy Price : “);
scanf(“%f”,&buyprice);
current=buyprice/11;
while ( !feof( stdin ) ) {
   fprintf( yol, “%s %s %.2f %.2f
“, stockNumber, stockName, current, buyprice );
printf(”
Enter the Stock Number : “);
scanf(“%s”,&stockNumber);
printf(“Enter the Stock Name : “);
scanf(“%s”,&stockName);
printf(”
Enter the Buy Price : “);
scanf(“%f”,&buyprice);
current=buyprice/11;
  }
rewind(yol);
fclose(yol);

}

void delete_info()
{
FILE *yol;
  yol = fopen( “database.txt”, “a+” );
FILE *yol2;

 yol2 = fopen( “del.txt”, “w+”);

char number[5];
char str[60]={0};
printf(“Which record do you want to delete? Enter the Stock Number : “);
scanf(“%s”,&number);
int x;
x=strlen(number);
while(!feof(yol))
{

  if(strncmp(str,number,x)!=0)
 {
  fputs(str,yol2);
   }
 fgets(str,60,yol);
}
printf(“%s . stock successfully DELETED”,number);
rewind(yol2);
rewind(yol);
fclose(yol);
fclose(yol2);

}

void list_info()
{
FILE *yol;
  yol = fopen( “database.txt”, “a+” );
char deneme[100]={0};
printf(“No Name CP  BP
—————
“);
while(!feof(yol))
{
printf(“%s”,deneme);
fgets(deneme,100,yol);

}
rewind(yol);
fclose(yol);

}
void list_info1()
{
FILE *yol2;
  yol2 = fopen( “del.txt”, “a+” );
char deneme[100]={0};
printf(“No Name CP  BP
—————
“);
while(!feof(yol2))
{
printf(“%s”,deneme);
fgets(deneme,100,yol2);

}
rewind(yol2);
fclose(yol2);

}

Kaynak: Csit114 course
belgesi-614