package com.processpuzzle.fitnesse.fundamental_types; import fit.ColumnFixture; public class CalculateSubtract extends ColumnFixture { public String unit1, unit2; public double quantity1, quantity2; public CalculateSubtract() { } public double subtract() { // Quantity number = QuantityHelper.quantityCreator(quantity1, unit1); // Quantity substrahend = QuantityHelper.quantityCreator(quantity2, unit2); // // return number.subtract(substrahend).getAmount(); return 0; } }