Question

In C program

Consider a file that contains employee records, called "empstat.txt." The data for each employee consist of the employee’s last name (up to 20 characters), employee id number (up to 11 characters), gross pay for the week (double), taxes deducted (double) for the week, and net pay (double) for the week.

Create a struct to hold the employee information.

Write a void function called writeEmpFile that prompts the user to enter last name, id number, gross pay and taxes, then calculates the net pay, and writes the employee information to the employee data file.

Write a void function called readEmpFile that reads the data from the file just created and displays it nicely formatted.

We'll store the data in tab delimited format. Each line in the file will hold the information for one employee. Each item of employee information will be separated by a tab character. For example:

Smith<tab>0123456<tab>12000.00<tab>2000.00<tab>10000.00

The file will have 1 header line before the employee data. The format for the header line should be:

NAME<tab>IDNUM<tab>GROSS<tab>TAXES<tab>NET

Write a program that uses your functions to create and read the empstat.txt file. Allow the user to enter employee data until the the employee name "EXIT" is entered...then close the file. After all the data is entered and written to the file, use your readEmpFile function to read all the lines of the file and display the data.

For Example:

Enter Last Name (no spaces): Jones
Enter ID Number: 123009
Enter Gross Pay: 12000.01
Enter Taxes: 2000.37
Enter Last Name (no spaces): Smith
Enter ID Number: Abc2378
Enter Gross Pay: 10000.00
Enter Taxes: 2345.01
Enter Last Name (no spaces): EXIT

                 NAME          IDNUM       GROSS           TAXES             NET
                Jones         123009    12000.01        02000.37        09999.64
                Smith        Abc2378    10000.00        02345.01        07654.99

Answer 1

Hey,

Below is the code to your question

#include <stdio.h>
#include <stdlib.h>
int flag=0;
void writeEmpFile(FILE* fptr)
{
char name[1000],id[100];
double pay,tax,net;
printf("Enter Last Name (no spaces): ");
scanf("%s",name);
if(strcmp(name,"EXIT")==0)
{
flag=1;
return;
}
printf("Enter ID Number: ");
scanf("%s",id);
printf("Enter Gross Pay: ");
scanf("%lf",&pay);
printf("Enter Taxes: ");
scanf("%lf",&tax);
net=pay-tax;
fprintf(fptr,"%s\t%s\t%.2lf\t0%.2lf\t0%.2lf\n", name,id,pay,tax,net);

}
void readEmpFile(FILE* fptr)
{
char ch;
ch = fgetc(fptr);
while (ch != EOF)
{
printf ("%c", ch);
ch = fgetc(fptr);
}
}
int main()
{
FILE *fptr;

fptr = fopen("empstat.txt", "w");
if(fptr == NULL)
{
printf("Error!");
return -1;
}
fprintf(fptr,"NAME\tIDNUM\tGROSS\t\tTAXES\t\tNET\n");
while(flag==0)
{
writeEmpFile(fptr);
}

fclose(fptr);

fptr = fopen("empstat.txt", "r");
if (fptr == NULL)
{
printf("Cannot open file \n");
return 0;
}
readEmpFile(fptr);
fclose(fptr);
return 0;
}