Question

The following needs to be in C programming !

Outcomes:

• Demonstrate the ability to design a menu driven program.
• Demonstrate the ability to reuse previous code to create a new assignment.
• Demonstrate the ability to use appropriate program logic.

Program Specifications:

DESIGN and IMPLEMENT a menu driven program that uses the following menu and can perform all menu items:

1. Enter a payroll record for one person
2. Display all paycheck stubs
3. Display total gross payroll from all pay records.
4. Quit program

The program will reuse the DATE struct from the previous assignment.  You should also copy in the functions relating to a DATE.

The program will create a PAYRECORD struct with the following fields:

typedef struct {

            char name[100];

            int age;

            float hrlyWage;

            float hrsWorked;

            float regPay;

            float otPay;

            float totalPay;

            DATE payDate;

} PAYRECORD;

Requirements:

• The program must store between 0 and 100 payroll records.
• The user will input employee name, pay date, hours worked, and hourly rate of pay.
• All employees are paid an hourly rate.
• Employees get paid every week.
• Overtime pay will be calculated as time and a half.
• You will validate all input data:
  • Dates must be a real date
  • Hours worked must be more than zero and less than 100
  • Age must be 18 to 120
  • Hourly rate must be more than zero and less than 500 dollars

Bonus:

You will receive a 25-point bonus if your program stores all payroll data in a file and loads in stored payroll data from that file.

Outcomes:

• Demonstrate the ability to design a menu driven program.
• Demonstrate the ability to reuse previous code to create a new assignment.
• Demonstrate the ability to use appropriate program logic.

Program Specifications:

DESIGN and IMPLEMENT a menu driven program that uses the following menu and can perform all menu items:

1. Enter a payroll record for one person
2. Display all paycheck stubs
3. Display total gross payroll from all pay records.
4. Quit program

The program will reuse the DATE struct from the previous assignment.  You should also copy in the functions relating to a DATE.

The program will create a PAYRECORD struct with the following fields:

typedef struct {

            char name[100];

            int age;

            float hrlyWage;

            float hrsWorked;

            float regPay;

            float otPay;

            float totalPay;

            DATE payDate;

} PAYRECORD;

Requirements:

• The program must store between 0 and 100 payroll records.
• The user will input employee name, pay date, hours worked, and hourly rate of pay.
• All employees are paid an hourly rate.
• Employees get paid every week.
• Overtime pay will be calculated as time and a half.
• You will validate all input data:
  • Dates must be a real date
  • Hours worked must be more than zero and less than 100
  • Age must be 18 to 120
  • Hourly rate must be more than zero and less than 500 dollars

Bonus:

You will receive a 25-point bonus if your program stores all payroll data in a file and loads in stored payroll data from that file.

Answer 1

Code :

#define _CRT_SECURE_NO_WARNINGS

#include <stdlib.h>
#include <stdio.h>

#define PAUSE //system("pause");
#define CLS //system("cls");
#define FLUSH //fflush(stdin);

#define MAX 100
struct namerecord {
char first[25];
char last[25];
};
struct DATE {
int day;
int month;
int year;
};

struct payrecord {
int id;
struct namerecord name;
int age;
float hoursWorked;
float hourlyRate;
float regularPay;
float overtimePay;
float gross;
struct DATE date;
};

typedef struct payrecord payrecord;

int getRecords(FILE *fp,payrecord payroll[],int max);
int getSelection();

double calcPayroll(payrecord payroll[], int n);

void printAllRecords(FILE *fp,payrecord payroll[], int n);
void getName(payrecord payroll[], int i);
void grossPayroll(payrecord payroll[], int i);
void printGrossPayroll(double gross);
void displayMenu();
void getdate(payrecord payroll[], int i);
int main()
{
FILE *fp;
int userSelection;
int i = 0, n = 0, numOfEmployees = 0;

double gross = 0, tax = 0;

payrecord payroll[MAX];

do
{
userSelection = getSelection();

switch (userSelection)
{

case 1:
CLS;

// Get the employee information from the user
fp = fopen("abc.txt","w");
n = getRecords(fp,payroll, numOfEmployees);
numOfEmployees++;
PAUSE;
fclose(fp);
break;

case 2:
CLS;
fp = fopen("abc.txt","r");
gross = calcPayroll(payroll, numOfEmployees);
printAllRecords(fp,payroll, numOfEmployees);
  
PAUSE;
fclose(fp);
break;

case 3:
CLS;
gross = calcPayroll(payroll, numOfEmployees);
printGrossPayroll(gross);

PAUSE;

break;

default:

PAUSE;

break;
}
} while (userSelection != 4);
fclose(fp);
return 0;
}

void displayMenu()
{

CLS;

printf("=========== PAYROLL PROGRAM ===========\n");
printf("=========== Menu ===========\n");
printf("1. Add an employee\n");
printf("2. Display ALL employees\n");
printf("3. Display GROSS Payroll\n");
printf("4. Quit\n");
printf("=======================================\n");

printf("Enter your selection: ");

} // end displayMenu()

int getSelection()
{
int result;

displayMenu();
scanf("%i", &result);
fflush(stdin);

return result;
} // end getSelection()

int getRecords(FILE *fp,payrecord payroll[], int max)
{   
int i=max, j, n;
float z;
payrecord pay;
fflush(stdin);
// Ask the user for the employee name
void getName(payrecord payroll[], int i);

  
  
printf("ID Number: ");
j = scanf("%d%*c", &n);

// Error checking
if (j == EOF)
return i;

payroll[i].id = n;

getName(payroll, i);
getdate(payroll, i);
  
  
printf("Age: ");
j = scanf("%d%*c", &n);
payroll[i].age =n;
  
printf("Hours Worked: ");
j = scanf("%f%*c", &z);
payroll[i].hoursWorked = z;

printf("Hourly Rate: ");
j = scanf("%f%*c", &z);
payroll[i].hourlyRate = z;
grossPayroll(payroll,i);
fwrite(&payroll[i],sizeof(payroll[i]),1,fp);
return i;
}

void getName(payrecord payroll[], int i)
{
printf("First Name: ");
gets(payroll[i].name.first);

printf("Last Name: ");
gets(payroll[i].name.last);
}
void getdate(payrecord payroll[], int i)
{ int n,j;
printf("Day: ");
j = scanf("%d%*c", &n);
payroll[i].date.day = n;
printf("Month: ");
j = scanf("%d%*c", &n);
payroll[i].date.month = n;
printf("year: ");
j = scanf("%d%*c", &n);
payroll[i].date.year = n;

}
void grossPayroll(payrecord payroll[], int i)
{

if (payroll[i].hoursWorked <= 40)
{
payroll[i].regularPay = payroll[i].gross = payroll[i].hoursWorked * payroll[i].hourlyRate;
payroll[i].overtimePay = 0;
}
else {
payroll[i].regularPay = 40 * payroll[i].hourlyRate;
payroll[i].overtimePay = (payroll[i].hoursWorked - 40) * 1.5 * payroll[i].hourlyRate;
}
payroll[i].gross = payroll[i].regularPay + payroll[i].overtimePay;
}

double calcPayroll(payrecord payroll[], int n)
{
int i;

double gross = 0;

printf("No of employees = %d\n",n);
for (i = 0; i < n; i++)
{
  
// Gross pay
  
gross = gross + payroll[i].gross;
  
}

return gross;
}

void printAllRecords(FILE *fp,payrecord payroll[], int n)
{ payrecord pay;
  
for (int i = 0; i < n; i++)
{ fread(&pay, sizeof(pay),1,fp);
printf("ID Number: %d\n", pay.id);
printf("Name: %s %s\n", pay.name.first, pay.name.last);
printf("Age : %d", pay.age);
printf("Hours Worked: %.2f\n", pay.hoursWorked);
printf("Overtime Pay: $%.2f\n", pay.overtimePay);
printf("Hourly Rate: $%.2f\n", pay.hourlyRate);
printf("Gross Pay: $%.2f\n",pay.gross);
printf("Date : %d / %d / %d\n",pay.date.day,pay.date.month,pay.date.year );

}

}

void printGrossPayroll(double gross)
{
  
printf("==== TOTAL PAYROLL ====\n");
printf("Gross Employee Pay: $%.2f\n", gross);

}

Output:

The date format is not given so i provide a normal format.