Employee Management System Project Step by Step using Java and C++

In this Post we Discuss Employee Management System Project using Java and C++. An Abstract class Employee with a constructor and Two abstract Methods along with two subclasses Permanent Employee and Visiting Employee that inherit from the Employee class in java and C++

Program Source Code using Java

import java.util.*;

abstract class Employee{

protected int empId;

protected String empName;

// Constructor

public Employee(int employeeId, String employeeName) {

this.empId = employeeId;

this.empName = employeeName;

}

// Abstract Method

abstract void inputDetail();

abstract double calculateSalary();

public void displayInfo() {

System.out.println("-----------Employee Detail-------");

System.out.println("Employee ID :"+empId);

System.out.println("Employee Name :"+empName);

}

}

class parmanentEmployee extends Employee{

private double basicSalary,allowance;

//constructor

public parmanentEmployee(int empId, String empName) {

super(empId,empName);

}

@Override

public void inputDetail() {

Scanner ins = new Scanner(System.in);

System.out.print("Enter Basic Salary :$");

basicSalary = ins.nextDouble();

System.out.print("Enter Allowance :$");

allowance = ins.nextDouble();

}

@Override

public double calculateSalary() {

return basicSalary+allowance;

}

}

class VisitingEmployee extends Employee{

private int workedHour;

private double hourlyRate;

public VisitingEmployee(int empId,String empName){

super(empId,empName);

}@Override

public void inputDetail() {

Scanner ins = new Scanner(System.in);

System.out.print("Enter Hourly Rate :");

hourlyRate = ins.nextDouble();

System.out.print("Enter Hour :");

workedHour = ins.nextInt();

}

@Override

public double calculateSalary() {

return workedHour*hourlyRate;

}

}

public class EmployeeEx {

public static void main(String[] args) {

// TODO Auto-generated method stub

Scanner ins = new Scanner(System.in);

Employee Pemployee = new parmanentEmployee(0,"");

Employee Vemployee = new VisitingEmployee(0,"");

char op;

do {

System.out.println("Select Employee Type");

System.out.println("1. Permanet Employee");

System.out.println("2. Visiting Employee");

System.out.print("Enter Your Choice :");

int choice =ins.nextInt();

switch(choice) {

case 1:{

System.out.print("Enter Employee Id :");

int id = ins.nextInt();

System.out.print("Enter Employee Name :");

String name = ins.next();

Pemployee.empId = id;

Pemployee.empName = name;

Pemployee.inputDetail();

double sal = Pemployee.calculateSalary();

Pemployee.displayInfo();

System.out.println("Calculated Salary :"+sal);

break;

}

case 2:{

System.out.print("Enter Employee Id :");

int id = ins.nextInt();

System.out.print("Enter Employee Name :");

String name = ins.next();

Vemployee.empId = id;

Vemployee.empName = name;

Vemployee.inputDetail();

double sal = Vemployee.calculateSalary();

Vemployee.displayInfo();

System.out.println("Calculated Salary :"+sal);

break;

}

default:

System.out.println("Invalid Number Try Again");

break;

}

System.out.print("Do You Want to Continue(y/n):");

op = ins.next().charAt(0);

}while(op=='y'||op=='Y');

}

}

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Program Source Code using C++

#include<iostream>

#include<string>

using namespace std;

//abstract Class

class Employee{

protected:

int empId;

string name;

public:

//concrete method

void InputBasicInfo(){

cout<<"Enter Employee ID :";

cin>>empId;

cout<<"Enter Employee Name :";

cin.ignore();

getline(cin,name);

}

void DisplayBasicInfo()const{

cout<<"---------- Basic Information -------------"<<endl;

cout<<"Employee ID :"<<empId<<endl;

cout<<"Employee Name :"<<name<<endl;

}

//Pure Virtual Function

virtual void inputInfo() = 0;

virtual void calculateSalary() const= 0;

};

//dirived Class Visiting Employee 

class visitingEmp : public Employee{

private:

int numberOfDays;

float dailyWages;

public:

//@Override

void inputInfo(){

cout<<"Enter Daily Wages :";

cin>>dailyWages;

cout<<"Enter Number of Days :";

cin>>numberOfDays;

}

//@Override

void calculateSalary() const{

float salary = dailyWages*numberOfDays;

cout<<"Salary :"<<salary<<endl;

}

};

//darived Class Parmanet Employee 

class ParmanentEmp : public Employee{

private:

int monthlySalary;

public:

void inputInfo(){

cout<<"Enter Monthly Salary :";

cin>>monthlySalary;

}

void calculateSalary() const{

cout<<"Salary :"<<monthlySalary<<" Per Month"<<endl;

}

};

main(){

Employee *Emp;

int choice;

do{

cout<<"-------- Main Menu ----------\n";

cout<<"1. Create Visiting Employee \n";

cout<<"2. Create Parmanent Employee \n";

cout<<"0. Exit \n";

cout<<"Enter Your Choice :";

cin>>choice;

switch(choice){

case 1:

Emp = new visitingEmp();

break;

case 2:

Emp = new ParmanentEmp();

break;

case 0:

cout<<"Exiting The Program \n";

break;

default:

cout<<"Invalid Number : Plz Enter Valid Number \n";

continue;

}

if(choice != 0){

Emp->InputBasicInfo();

Emp->inputInfo();

cout<<"\nEmployee Information\n";

Emp->DisplayBasicInfo();

Emp->calculateSalary();

delete Emp;

}

}while(choice!=0);

}

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