# C# COIS1020H Question 4 Compute Taxes

Feb 3rd, 2012
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Q4: Write a C# program that has a Main method and a user-defined method called ComputeTax. The Main method asks the user to enter an item's cost (double) and the percentage sales tax (double). The item cost is a positive number and the percentage sales tax is a number between 0.0 and 1.0. Main then calls the method named ComputeTax which has two parameters that will hold the item's cost and percentage sales tax as arguments. The method returns the overall price of the item (double) which should be output by Main. For example, if an item's cost is \$3.50 and percentage sales tax is 10% (entered as 0.1), then the value returned by the ComputeTax (and printed by Main) is \$3.85. The method header for ComputeTax should look like: public static double ComputeTax (double itemCost, double perTax) **** Note: On this assignment you can assume the correct datatype: that is, if the program requests a double, you can assume that the user will input a double, etc. You do need to check that the data is

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using System;using System.Collections.Generic;using System.Linq;using System.Text;using System.Threading.Tasks;namespace CSTaxes{ class Program { public static double ComputeTax(double itemCost, double perTax) { if (perTax >= 0.0 && perTax <= 1.0) { return itemCost + itemCost * (perTax / 100); } throw new Exception("Percentage sales tax out of range (0.0 to 0.1)!"); } static void Main(string[] args) {

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