import java.io.File;

import java.io.FileNotFoundException;

import java.util.ArrayList;

import java.util.Scanner;

public class Tax {

// tax percentage rates

private static double basicSalesTaxRate = 0.10;

private static double importDutyRate = 0.05;

// an array list for the exemptions

private static ArrayList<String> exemptionList = new ArrayList<String>();

// set the exemptions

public static void setExemptionList() throws FileNotFoundException {

Scanner exemptionInput = new Scanner(new File("../exemptions.txt"));

while (exemptionInput.hasNextLine()) {

String exemption = exemptionInput.nextLine();

exemptionList.add(exemption);

}

}

// get the exemptions

public static ArrayList<String> getExemptionList() {

return exemptionList;

}

// basic sales tax formula

public static double basicSalesTax(double price) {

return rounded(price * basicSalesTaxRate);

}

// import duty formula

public static double importDuty(double price) {

return rounded(price * importDutyRate);

}

// rounding to nearest .05

private static double rounded(double tax) {

return (Math.ceil((tax) * 20) / 20);

}

}