package com.blogspot.toomuchcoding.book.chapter4.common.staticmethod; import com.blogspot.toomuchcoding.person.Person; public class TaxFactorFetcher { public static final double NO_COUNTRY_TAX_FACTOR = 0.3; public static final double DEFAULT_TAX_FACTOR = 0.5; public static double getTaxFactorFor(Person person) { if (person.isCountryDefined()) { return DEFAULT_TAX_FACTOR; } return NO_COUNTRY_TAX_FACTOR; } }