using System; using System.Collections.Generic; using System.Linq; using System.Runtime.Serialization; using System.ServiceModel; using System.Text; namespace CalculatorService { // NOTE: You can use the "Rename" command on the "Refactor" menu to change the class name "Calculator" in code, svc and config file together. // NOTE: In order to launch WCF Test Client for testing this service, please select Calculator.svc or Calculator.svc.cs at the Solution Explorer and start debugging. public class Calculator : ICalculator { public int Add(int a, int b) { return a + b; } } }