#define _CRT_SECURE_NO_WARNINGS
#include <stdio.h>
#define SIZE 4
struct Employee {
int id,
age;
double salary;
};
int main(void) {
int menuChoice,
i,
validEmployees = 0,
idToUpdate = 0;
struct Employee emp[SIZE] = { {0} };
printf("---=== EMPLOYEE DATA ===---\n");
do {
printf("\n1. Display Employee Information\n");
printf("2. Add Employee\n");
printf("3. Update Employee Salary\n");
printf("4. Remove Employee\n");
printf("0. Exit\n\n");
printf("Please select from the above options: ");
scanf("%d", &menuChoice);
switch (menuChoice) {
case 1:
printf("\nEMP ID EMP AGE EMP SALARY\n");
printf("====== ======= ==========\n");
for (i = 0; i < SIZE; i++) {
if (emp[i].id >= 0) {
printf("%6d%9d%11.2lf\n", emp[i].id, emp[i].age, emp[i].salary);
}
}
break;
case 2:
printf("\nAdding Employee\n");
printf("===============");
validEmployees = 0;
for (i = 0; i < SIZE; i++) {
if (emp[i].id > 0) {
++validEmployees;
}
}
if (validEmployees >= SIZE) {
printf("\nERROR!!! Maximum Number of Employees Reached\n");
}
else {
printf("\nEnter Employee ID: ");
scanf("%d", &emp[validEmployees].id);
printf("Enter Employee Age: ");
scanf("%d", &emp[validEmployees].age);
printf("Enter Employee Salary: ");
scanf("%lf", &emp[validEmployees].salary);
}
break;
case 3:
printf("\nUpdate Employee Salary\n");
printf("======================\n");
printf("Enter Employee ID: ");
scanf("%d", &idToUpdate);
for (i = 0; i < 2; i++) {
if (emp[i].id >= 0)
printf("*** ERROR: Employee ID Not found! ***\n");
printf("Enter Employee ID: ");
scanf("%d", &idToUpdate);
}
for (i = 2; i < 2; i++) {
if (idToUpdate == emp[i].id) {
printf("The current salary is %.2lf", emp[i].salary);
printf("\nEnter Employee New Salary: ");
scanf("%lf", &emp[i].salary);
}
}
break;
case 4:
printf("\nRemove Employee\n");
printf("===============\n");
printf("Enter Employee ID: ");
scanf("%d", &idToUpdate);
for (i = 0; i < SIZE; i++) {
if (idToUpdate == emp[i].id) {
printf("Employee %d will be removed\n", emp[i].id);
emp[i].id = 0;
}
}
break;
case 0:
printf("\nExiting Employee Data Program. Good Bye!!!\n");
break;
default:
printf("\nERROR: Incorrect Option: Try Again\n");
break;
}
} while (menuChoice != 0);
return 0;
}
