Created
December 3, 2012 16:12
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FizzBuzz 実装クラス
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using System.Globalization; | |
namespace FizzBuzz | |
{ | |
public class FizzBuzz | |
{ | |
private readonly int _inputNumber; | |
/// <summary> | |
/// コンストラクタ | |
/// </summary> | |
public FizzBuzz(int inputNumber) | |
{ | |
_inputNumber = inputNumber; | |
} | |
public bool Is三の倍数() | |
{ | |
if (!IsMod(3)) | |
return false; | |
return true; | |
} | |
public bool Is五の倍数() | |
{ | |
if (!IsMod(5)) | |
return false; | |
return true; | |
} | |
public string Say() | |
{ | |
if (Is三の倍数() && Is五の倍数()) | |
return "FizzBuzz"; | |
if (Is三の倍数()) | |
return "Fizz"; | |
if (Is五の倍数()) | |
return "Buzz"; | |
return _inputNumber.ToString(CultureInfo.InvariantCulture); | |
} | |
/// <summary> | |
/// 引数の数字で割り切れればtrueを返す。 | |
/// 0 は無効として、falseで返す | |
/// </summary> | |
/// <param name="divisionNumber"></param> | |
/// <returns>true:割り切れる false:割り切れない</returns> | |
private bool IsMod(int divisionNumber) | |
{ | |
if (_inputNumber == 0) | |
return false; | |
if (_inputNumber % divisionNumber != 0) | |
return false; | |
return true; | |
} | |
} | |
} |
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