Hours Worked Problem using Java Homework Solution

Employee Working Hour Calculator

Following are two arrays, time_started, time_ended, of an employee’s working hours over ten business days (Monday to Friday and the following Monday to Friday). Times are based on a 24-hour clock (between 0 and 24).

double []time_started = {2, 4, 5, 7, 8, 8, 10, 11, 19, 22};

double []time_ended = {8, 9, 22, 18, 20, 23, 22, 20, 23, 24};

The hourly pay of the employee is $25, for hours worked between 9 am and 6 pm. Use the pay multiplier in the table shown below to calculate the hourly pay for hours worked throughout the day.

Times based on a 24 clock Pay Multiplier

12 am to 6 am (0 to 6) 20%

6 am to 9 am (6 to 9) 10%

9 am to 6 pm (9 to 18) 0%

6 pm to 9 pm (18 to 21) 10%

9 pm to 12 pm (21 to 24) 20%

Sample of Expected output:

Time work started = 4

Time work ended = 16

Daily pay = (6 – 4) 25 (1 + 20/100) + (9 – 6) 25 (1 + 10/100) + (16 – 9) 25 = $317.50

Write a class file called lastname_empData. Write a constructor to initialize the two arrays.

Also, write a method called getDailyPay to compute and return each of the ten daily pay of the employee and a method called getTotalPay to compute and return the sum of the daily pays.

Write a lastname_demo file. Pass the two arrays into lastname_empData class and print each of the daily pays and the total pay of the employee after 10 days.

It is also acceptable to write the entire code in a single file but both methods, getDailyPay, and getTotalPay must be included.

Note: lastname is your lastname. Last name = Dominguez

Hint: your constructor should like follows:public lastname_empData (etcetc){

}

and not like this: public emp data (etcetc){

}

Solution

Lastname_empData

public class lastname_empData { private int[] time_started; private int[] time_ended; private int[][] pay_multipliers; private double hourly_pay; public lastname_empData(int[] t_started, int[] t_ended, int[][] pay_mult, double rate) { time_started = t_started; time_ended = t_ended; pay_multipliers = pay_mult; hourly_pay = rate; } public double getDailyPay(int startTime, int endTime) { double pay = 0.0; // get number of days worked int hours = (startTime - endTime); double start = startTime; for(int i = 0; i < pay_multipliers.length; i++) { double from = pay_multipliers[i][0]; double to = pay_multipliers[i][1]; double multiplier = pay_multipliers[i][2]; if(to > endTime) to = endTime; if(start >= from && start<= to) { pay += (to - start)*hourly_pay*(1.0 + multiplier/100.0); start = to; } } return pay; } public double getTotalPay(int startTime, int endTime) { double total_pay = 0; for(int i = 0; i < time_started.length; i++) { total_pay += getDailyPay(time_started[i], time_ended[i]); } return total_pay; } }

App:

public class App { public static void main(String[] args) throws Exception { int[]time_ended = {8,9,22,18,20,23,22,20,23,24}; int[]time_started = {2, 4, 5, 7, 8, 8, 10, 11, 19, 22}; int[][]pay_multipliers = { {0, 6, 20}, {6, 9, 10}, {9, 18, 0}, {18, 21, 10}, {21, 24, 20} }; double rate = 25; lastname_empData payment = new lastname_empData(time_started, time_ended, pay_multipliers, rate); System.out.println(payment.getDailyPay(4, 16)); System.out.println(payment.getTotalPay(4, 16)); } }