PayrollCalculator

import java.util.Scanner;

public class PayrollCalculator {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        int numberOfEmployees;
        double hoursWorked, hourlyWage,totalPay, overtimeWage;
        double totalHoursWorked = 0;
        double totalWages = 0;

        System.out.print("Enter # of employees: ");
        numberOfEmployees = scan.nextInt();
        while (numberOfEmployees <= 0) {
            System.out.println("Invalid number of employees.");
            System.out.print("Ener # of employees: ");
            numberOfEmployees = scan.nextInt();
        }

        for (int i = 0; i < numberOfEmployees; i++) {
            System.out.printf("\nEnter hourly wage for Employee %,d: ", (i+1));
            hourlyWage = scan.nextDouble();

            while (hourlyWage <= 0) {
                System.out.println("Invalid hourly wage.");
                System.out.printf("Enter hourly wage for Employee %,d: ", (i+1));
                hourlyWage = scan.nextDouble();
            }

            System.out.printf("Enter # of hours worked by Employee %,d: ", (i+1));
            hoursWorked = scan.nextDouble();

            while (hoursWorked <= 0) {
                System.out.println("Invalid # of hours worked.");
                System.out.printf("Enter # of hours worked by Employee %,d: ", (i+1));
                hoursWorked = scan.nextDouble();
            }

            totalHoursWorked += hoursWorked;

            if (hoursWorked > 8) {
                overtimeWage = (hoursWorked - 8) * (hourlyWage * 1.5);
                totalPay = overtimeWage + (8 * hourlyWage);
            } else {
                totalPay = hoursWorked * hourlyWage;
            }

            totalWages += totalPay;

            System.out.printf("Employee %,d is to be paid $%,.2f for %,.2f of hours worked.\n",
                    (i+1), totalPay, hoursWorked);

        }

        System.out.printf("\nTotal Wages Paid: $%,.2f\n" +
                "Total # of Hours Worked: %,.2f\n" +
                "Average Pay: $%,.2f\n", totalWages, totalHoursWorked,
                (totalWages / numberOfEmployees));
    }
}