HR Management System
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import java.util.Scanner;
class Employee {
int empId;
String name;
String department;
String position;
Map<String, Integer> attendance; // Store attendance: Date -> Hours
int performanceScore; // Performance evaluation score
public Employee(int empId, String name, String department, String position) {
this.empId = empId;
this.name = name;
this.department = department;
this.position = position;
this.attendance = new HashMap<>();
this.performanceScore = 0;
}
public void markAttendance(String date, int hours) {
attendance.put(date, hours);
}
public void setPerformanceScore(int score) {
this.performanceScore = score;
}
public int getPerformanceScore() {
return performanceScore;
}
}
public class HRManagementSystem {
ArrayList<Employee> employees;
Scanner scanner;
public HRManagementSystem() {
this.employees = new ArrayList<>();
this.scanner = new Scanner(System.in);
}
public void addEmployee() {
System.out.println("Enter Employee ID:");
int empId = scanner.nextInt();
scanner.nextLine(); // Consume newline
System.out.println("Enter Employee Name:");
String name = scanner.nextLine();
System.out.println("Enter Employee Department:");
String department = scanner.nextLine();
System.out.println("Enter Employee Position:");
String position = scanner.nextLine();
Employee employee = new Employee(empId, name, department, position);
employees.add(employee);
System.out.println("Employee " + name + " added successfully.");
}
public void removeEmployee(int empId) {
Iterator<Employee> iterator = employees.iterator();
while (iterator.hasNext()) {
Employee employee = iterator.next();
if (employee.empId == empId) {
iterator.remove();
System.out.println("Employee " + employee.name + " removed
successfully.");
return;
}
}
System.out.println("Employee not found.");
}
public void updateEmployee(int empId) {
for (Employee employee : employees) {
if (employee.empId == empId) {
System.out.println("Enter new Employee Name:");
String name = scanner.nextLine();
System.out.println("Enter new Employee Department:");
String department = scanner.nextLine();
System.out.println("Enter new Employee Position:");
String position = scanner.nextLine();
employee.name = name;
employee.department = department;
employee.position = position;
System.out.println("Employee details updated successfully.");
return;
}
}
System.out.println("Employee not found.");
}
public void markAttendance(int empId) {
for (Employee employee : employees) {
if (employee.empId == empId) {
System.out.println("Enter Date (YYYY-MM-DD):");
String date = scanner.nextLine();
System.out.println("Enter Hours Worked:");
int hours = scanner.nextInt();
employee.markAttendance(date, hours);
System.out.println("Attendance marked successfully for Employee " +
employee.name + ".");
return;
}
}
System.out.println("Employee not found.");
}
public void evaluatePerformance(int empId) {
for (Employee employee : employees) {
if (employee.empId == empId) {
System.out.println("Enter Performance Score (0-100):");
int score = scanner.nextInt();
employee.setPerformanceScore(score);
System.out.println("Performance evaluated successfully for Employee " +
employee.name + ".");
return;
}
}
System.out.println("Employee not found.");
}
public void displayAttendanceReport(int empId) {
for (Employee employee : employees) {
if (employee.empId == empId) {
System.out.println("Attendance Report for Employee " + employee.name +
":");
System.out.println(employee.attendance);
return;
}
}
System.out.println("Employee not found.");
}
public void displayPerformanceReport(int empId) {
for (Employee employee : employees) {
if (employee.empId == empId) {
System.out.println("Performance Report for Employee " + employee.name +
":");
System.out.println("Performance Score: " +
employee.getPerformanceScore());
return;
}
}
System.out.println("Employee not found.");
}
public void displayEmployees() {
if (employees.isEmpty()) {
System.out.println("No employees found.");
return;
}
System.out.println("Employee List:");
for (Employee employee : employees) {
System.out.println("ID: " + employee.empId + ", Name: " + employee.name +
", Department: " + employee.department + ", Position: " +
employee.position);
System.out.println("Attendance: " + employee.attendance);
System.out.println("Performance Score: " + employee.getPerformanceScore());
System.out.println();
}
}
// Sample usage
public static void main(String[] args) {
HRManagementSystem hrSystem = new HRManagementSystem();
Scanner scanner = new Scanner(System.in);
char choice;
do {
System.out.println("Select Operation:");
System.out.println("1. Add Employee");
System.out.println("2. Remove Employee");
System.out.println("3. Update Employee Details");
System.out.println("4. Mark Attendance");
System.out.println("5. Evaluate Performance");
System.out.println("6. View Attendance Report");
System.out.println("7. View Performance Report");
System.out.println("8. Display Employees");
System.out.println("9. Go Back");
int operation = scanner.nextInt();
switch (operation) {
case 1:
hrSystem.addEmployee();
break;
case 2:
System.out.println("Enter Employee ID to Remove:");
int empIdToRemove = scanner.nextInt();
hrSystem.removeEmployee(empIdToRemove);
break;
case 3:
System.out.println("Enter Employee ID to Update:");
int empIdToUpdate = scanner.nextInt();
scanner.nextLine(); // Consume newline
hrSystem.updateEmployee(empIdToUpdate);
break;
case 4:
System.out.println("Enter Employee ID to Mark Attendance:");
int empIdToMarkAttendance = scanner.nextInt();
scanner.nextLine(); // Consume newline
hrSystem.markAttendance(empIdToMarkAttendance);
break;
case 5:
System.out.println("Enter Employee ID to Evaluate Performance:");
int empIdToEvaluatePerformance = scanner.nextInt();
hrSystem.evaluatePerformance(empIdToEvaluatePerformance);
break;
case 6:
System.out.println("Enter Employee ID to View Attendance Report:");
int empIdForAttendanceReport = scanner.nextInt();
hrSystem.displayAttendanceReport(empIdForAttendanceReport);
break;
case 7:
System.out.println("Enter Employee ID to View Performance Report:");
int empIdForPerformanceReport = scanner.nextInt();
hrSystem.displayPerformanceReport(empIdForPerformanceReport);
break;
case 8:
hrSystem.displayEmployees();
break;
case 9:
// Allow HR professional to go back to the main menu
break;
default:
System.out.println("Invalid Operation.");
}
System.out.println("Do you want to continue? (Y/N)");
choice = scanner.next().charAt(0);
scanner.nextLine(); // Consume newline
} while (choice == 'Y' || choice == 'y');
scanner.close(); // Close the scanner before exiting
}
}
