TaxTables.class

//This class calculates owed from the pay sent.
package com;
import java.io.*;
import com.InlandRevVar;
import com.EmployeeObject4;

public class TaxTables
{
static double lowerBoundary = 0.00;
static double upperBoundary = 0.00;
static double startingRate = 0.00;
static double basicRate = 0.0;
static double higherRate = 0.0;
static double tax;

public TaxTables()
    {
    }

public static synchronized double getTax(double pay, EmployeeObject4 employee)
    {
    double period = employee.getCurrentPeriod();
    String monthweek = employee.getMonthWeek();
    lowerBoundary = InlandRevVar.getLowerBoundary();
    upperBoundary = InlandRevVar.getUpperBoundary();
    startingRate = InlandRevVar.getStartingRate();
    basicRate = InlandRevVar.getBasicRate();
    higherRate = InlandRevVar.getHigherRate();
    double upBoundary;
    double lowBoundary;
    double periodNumber = 12;
//Calculates what the taxBoundaries are for the curentperiod
    if(monthweek.equals("weekly"))
        {
        periodNumber = 52;
        }
    upBoundary = (upperBoundary/periodNumber)*period;
    lowBoundary = (lowerBoundary/periodNumber)*period;
//Finds which boundary the pay lies between and carries out the relevant tax calculation.
    if(pay < lowBoundary )
        {
        tax = pay * startingRate/100;
        }
    if(pay >lowBoundary && pay < upBoundary)
        {
        tax = (lowBoundary * startingRate/100)+((pay - lowBoundary)*basicRate/100);
        }
    if (pay > upBoundary)
        {
        tax = (lowBoundary * startingRate/100)+((upBoundary-lowBoundary)*basicRate/100)+(pay - upBoundary)*higherRate/100;
        }
    return tax;
    }
}