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Java Coding Questions - Payroll Reporting and Analytics

Updated: Dec 17, 2023


Java Coding Questions

Explore a collection of Java coding questions designed to sharpen your programming skills. Write a java program for Payroll Reporting and Analytics: Design a program that generates various payroll reports and provides analytics to help HR departments gain insights into payroll expenses.

Below is a simple Java program structure for Payroll Reporting and Analytics. This is a basic example, and depending on your specific requirements, you may need to extend or modify the classes accordingly.


Core Java Programming

Java Back-End Development


import java.util.ArrayList;
import java.util.List;

// Employee class representing individual employees
class Employee {
    private int employeeId;
    private String name;
    private double salary;

    public Employee(int employeeId, String name, double salary) {
        this.employeeId = employeeId;
        this.name = name;
        this.salary = salary;
    }

    // Getters and setters
public int getEmployeeId() {
        return employeeId;
    }

    public void setEmployeeId(int employeeId) {
        this.employeeId = employeeId;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public double getSalary() {
        return salary;
    }

    public void setSalary(double salary) {
        this.salary = salary;
    }
}


// PayrollService class handling payroll calculations and reporting
class PayrollService {
    private List<Employee> employees;

    public PayrollService() {
        this.employees = new ArrayList<>();
    }

    // Add employee to the system
public void addEmployee(Employee employee) {
        employees.add(employee);
    }

    // Generate basic payroll report
public void generatePayrollReport() {
        System.out.println("Payroll Report:");
        for (Employee employee : employees) {
            System.out.println("Employee ID: " + employee.getEmployeeId() +
                    ", Name: " + employee.getName() +
                    ", Salary: $" + employee.getSalary());
        }
    }

    // Perform analytics - calculate total payroll expense
public double calculateTotalPayrollExpense() {
        double totalExpense = 0;
        for (Employee employee : employees) {
            totalExpense += employee.getSalary();
        }
        return totalExpense;
    }
}


// Main class to demonstrate the program
public class PayrollReportingApp {
    public static void main(String[] args) {
        // Create employees
Employee emp1 = new Employee(1, "John Doe", 50000);
 Employee emp2 = new Employee(2, "Jane Smith", 60000);

        // Create PayrollService
PayrollService payrollService = new PayrollService();

        // Add employees to PayrollService
        payrollService.addEmployee(emp1);
        payrollService.addEmployee(emp2);

        // Generate and display payroll report
        payrollService.generatePayrollReport();

        // Perform analytics and display total payroll expense
double totalExpense = payrollService.calculateTotalPayrollExpense();
        System.out.println("\nTotal Payroll Expense: $" + totalExpense);
    }
}
    

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