Category

Development Platform
Home > SourceCode/Document > Windows Develop > CSharp > View Code
MortimerPhones3Funny.cs
Package: CSharpprogramming.rar　[view]
Upload User: lxycoco
Upload Date: 2022-07-21
Package Size: 38457k
Code Size: 3k
Category:

CSharp

Development Platform:

Others

MortimerPhones3Funny.cs：Code Content
  1. namespace Wrox.ProCSharp.OOProg
  2. {
  3.    using System;
  4.    public enum TypeOfCall 
  5.    {
  6.       CallToCellPhone, CallToLandline
  7.    } 
  9.    public class Customer
  10.    {
  11.       private string name;
  12.       protected decimal balance;
  13.       public string GetFunnyString()
  14.       {
  15.          return "Plain ordinary customer. Kaark!";
  16.       }
  17.       public string Name
  18.       {
  19.          get
  20.          {
  21.             return name;
  22.          }
  23.          set
  24.          {
  25.             name = value;
  26.          }
  27.       }
  29.       public decimal Balance
  30.       {
  31.          get
  32.          {
  33.             return balance;
  34.          }
  35.       }
  36.       public void RecordPayment(decimal amountPaid)
  37.       {
  38.          balance -= amountPaid;
  39.       }
  40.       public virtual void RecordCall(TypeOfCall callType, uint nMinutes)
  41.       {
  42.          switch (callType)
  43.          {
  44.             case TypeOfCall.CallToLandline:
  45.                balance += (0.02M * nMinutes);
  46.                break;
  47.             case TypeOfCall.CallToCellPhone:
  48.                balance += (0.30M * nMinutes);
  49.                break;
  50.             default:
  51.                break;
  52.          }
  53.       }
  54.    }
  55.    public class Nevermore60Customer : Customer
  56.    {
  57.       private uint highCostMinutesUsed;
  58.       public new string GetFunnyString()
  59.       {
  60.          return "Nevermore60. Nevermore!";
  61.       }
  62.       public override void RecordCall(TypeOfCall callType, uint nMinutes)
  63.       {
  64.          switch (callType)
  65.          {
  66.             case TypeOfCall.CallToLandline:
  67.                balance += (0.02M * nMinutes);
  68.                break;
  69.             case TypeOfCall.CallToCellPhone:
  70.          uint highCostMinutes, lowCostMinutes;
  71.          uint highCostMinutesToGo = 
  72.             (highCostMinutesUsed < 60) ? 60 - highCostMinutesUsed : 0;
  73.          if (nMinutes > highCostMinutesToGo)
  74.          {
  75.             highCostMinutes = highCostMinutesToGo;
  76.             lowCostMinutes = nMinutes - highCostMinutes;
  77.          }
  78.          else
  79.          {
  80.             highCostMinutes = nMinutes;
  81.             lowCostMinutes = 0;
  82.          }
  83.          highCostMinutesUsed += highCostMinutes;
  84.          balance += (0.50M * highCostMinutes + 0.20M * 
  85.             lowCostMinutes);
  86.          break;
  87.             default:
  88.                break;
  89.          }
  90.       }
  91.    }
  92.    public class MainEntryPoint
  93.    {
  94.       public static void Main()
  95.       {
  96.          Customer cust1;
  97.          Nevermore60Customer cust2;
  98.          cust1 = new Customer();
  99.          Console.WriteLine("Customer referencing Customer: " 
  100.             + cust1.GetFunnyString());
  101.          cust1 = new Nevermore60Customer();
  102.          Console.WriteLine("Customer referencing Nevermore60Customer: " 
  103.             + cust1.GetFunnyString());
  104.          cust2 = new Nevermore60Customer();
  105.          Console.WriteLine("Nevermore60Customer referencing: " 
  106.             + cust2.GetFunnyString());   
  107.       }
  108.    }
  109. }