Employee Management System

A user-friendly C++ application for managing database in a corporate firm using concepts of OOPS and File Handling . Application allows CRUD operations for employee details and stores them in a binary file resulting in permanent data storage. Developed application generates the pay slip of an employee while accounting for DAA, HRA, Transport Allowance and other salary components.

Process Description

In this program an extensive use of files system of C++. There are different functions for:

• Creation of binary file and storing employee records in it
• Insertion of record of new employee while maintaining the sort order.
• Modification of record of a preexisting employee
• Deletion of record of a preexisting employee
• Modification of Rates
• Generation of Pay-slips of an employee

Classes Used

1. Employee

The data members of the class are private and the member functions are public.
Data Members:

Member Name	Return Type	Significance
empnum	int	Employee Number
fname[50]	char	First Name
lname[50]	char	Last Name
dob[11]	char	Date of Birth
doj[11]	char	Date of Joining
addr1[20]	char	City Name
addr2[20]	char	State Name
BP	float	Basic Pay
TA	float	Transport Allowance
CGIS	float	CHIS value
CGHS	float	CGHS value

Member Functions:

Function Name	Return Type	Functionality
getdata()	void	Receives the Information of Employee
putdata()	void	Displays the Information of Employee
reteno()	int	Returns the Employee Number

2. Rates

The data members of the class are private and the member functions are public.
Data Members:

Member Name	Return Type	Significance
DAr	float	Rate at which DA is to be calculated
HRAr	float	Rate at which HRA is to be calculated
GPFr	float	Rate at which GPF is to be calculated

Member Functions:

Function Name	Return Type	Functionality
getRate()	void	Allows the user to enter different Rates
putRate()	void	Displays the values of different Rates
retDAr()	float	Returns DAr
retHRAr()	float	Returns HRAr
retGPFr()	float	Returns GPFr

Binary files

1. Employee.dat

Used to store the information of employee objects.
Content:

Employee Id	Name	Birth Date	Joining Date	Address	Basis Pay	TA	CGIS	CGHS
1001	Ashwani Roy	27/05/1990	05/05/2017	Parmanand, Delhi	75620	1500	145	1200
1002	Bhaskar Chaudry	18/02/1992	25/06/2015	Timarpur, Delhi	80282	2300	147	196
1003	Raj Khurana	19/08/1992	27/04/2015	Mohali, Delhi	125000	9750	103	1200
1005	Light Yagami	03/11/1996	24/06/2020	Dhaka, Delhi	80808	6500	190	800
1006	Eren Yaegar	14/07/1997	14/06/2019	Parmanand, Delhi	75000	4500	160	620
1009	Rajesh Kapoor	05/05/1995	13/07/2016	Burari, Delhi	62000	9000	250	1250
1010	Mikasa Akerman	13/07/1990	25/06/2019	Azadpur, Delhi	120000	3030	150	1250
1013	Armin Arlet	12/04/1994	25/06/2018	Mohali, Delhi	90051	3698	160	900
1014	Naruto Uzumaki	08/08/1989	14/06/2018	Parmanand, Delhi	74600	6000	140	1014
1015	Sheldon Cooper	25/06/1992	13/07/2016	Azadpur, Delhi	71200	3500	100	700

2. Rate.dat

Used to store the rates of entities like DA, HRA etc.
Content:

Entity Name	Value
DAr	7%
HRAr	20%
GPFr	6.8%

Sample Output

Current Limitations

• The alignment of the final output may vary for different values of basic pay, HRA etc.
• The program is also limited by the limitations of the library functions it uses. For example, inputting a character when a number is expected can cause unexpected behaviour.
• While modifying the details of an Employee the user might enter incorrect Employee number which disturbs the sort order.