using System; public class Client{ static void Main(string[] args){ SoftwareRepresentative gopher = new SoftwareRepresentative(); gopher.BuildSoftware(); } } public class SoftwareRepresentative{ private TestSystem test; private DeploySystem deploy; private CodeSystem code; private DesignSystem design; public void BuildSoftware(){ this.test.DoTest(); this.deploy.DoDeploy(); this.code.DoCode(); this.design.DoDesign(); } public SoftwareRepresentative() { test = new TestSystem(); deploy = new DeploySystem(); code = new CodeSystem(); design = new DesignSystem(); } } public class TestSystem { public void DoTest() { Console.WriteLine ("test."); } public TestSystem(){;} } public class DeploySystem { public void DoDeploy() { Console.WriteLine("deploy."); } public DeploySystem(){;} } public class CodeSystem { public void DoCode() { Console.WriteLine("code."); } public CodeSystem(){;} } public class DesignSystem { public void DoDesign() { Console.WriteLine("design."); } public DesignSystem() {;} }