Console.SetIn メソッド

.NET Framework クラス ライブラリ リファレンス

Console.SetIn メソッド

指定した TextReader オブジェクトに In プロパティを設定します。

名前空間: System
アセンブリ: mscorlib (mscorlib.dll 内)
構文

Visual Basic (宣言)

Public Shared Sub SetIn
 ( _
    newIn As TextReader _
)

Visual Basic (使用法)

Dim newIn As TextReader

Console.SetIn(newIn)

C#

public static void SetIn
 (
    TextReader newIn
)

C++

public:
static void SetIn (
    TextReader^ newIn
)

J#

public static void SetIn
 (
    TextReader newIn
)

JScript

public static function SetIn
 (
    newIn : TextReader
)

パラメータ

newIn

新しい標準入力である TextReader ストリーム。

例外

例外の種類	条件
ArgumentNullException	newIn が null 参照 (Visual Basic では Nothing) です。
SecurityException	呼び出し元に、必要なアクセス許可がありません。

解説

既定では、In プロパティは標準入力ストリームに設定されます。

FileStream をカプセル化する StreamReader を使用すると、ファイルから入力を受け取ることができます。

使用例

SetIn メソッドの使用方法を示すコード例を次に示します。

Visual Basic

Public Class InsertTabs
   Private Const tabSize As
 Integer = 4
   Private Const usageText As
 String = "Usage: INSERTTABS inputfile.txt
 outputfile.txt"
   
   'Entry point which delegates to C-style main Private Function
   Public Overloads Shared
 Sub Main()
      System.Environment.ExitCode = Main(System.Environment.GetCommandLineArgs())
   End Sub
   
   Overloads Public Shared
 Function Main(args() As String)
 As Integer
      Dim writer As StreamWriter = Nothing
      
      If args.Length < 3 Then
         Console.WriteLine(usageText)
         Return 1
      End If
      
      Try
         writer = New StreamWriter(args(2))
         Console.SetOut(writer)
         Console.SetIn(New StreamReader(args(1)))
      Catch e As IOException
         Dim errorWriter As TextWriter = Console.Error
         errorWriter.WriteLine(e.Message)
         errorWriter.WriteLine(usageText)
         Return 1
      End Try
      Dim line As String
      line = Console.ReadLine()
      While Not line Is
 Nothing
         Dim newLine As String
 = line.Replace("".PadRight(tabSize, "
 "c), ControlChars.Tab)
         Console.WriteLine(newLine)
         line = Console.ReadLine()
      End While
      writer.Close()
      ' Recover the standard output stream so that a 
      ' completion message can be displayed.
      Dim standardOutput As New
 StreamWriter(Console.OpenStandardOutput())
      standardOutput.AutoFlush = True
      Console.SetOut(standardOutput)
      Console.WriteLine("INSERTTABS has completed the processing
 of {0}.", args(0))
      Return 0
   End Function 'Main
End Class 'InsertTabs

C#

public class InsertTabs {
    private const int tabSize
 = 4;
    private const string
 usageText = "Usage: INSERTTABS inputfile.txt outputfile.txt";
    public static int Main(string[]
 args) {
        StreamWriter writer = null;

        if (args.Length < 2) {
            Console.WriteLine(usageText);
            return 1;
        }

        try {
            writer = new StreamWriter(args[1]);
            Console.SetOut(writer);
            Console.SetIn(new StreamReader(args[0]));
        }
        catch(IOException e) {
            TextWriter errorWriter = Console.Error;
            errorWriter.WriteLine(e.Message);
            errorWriter.WriteLine(usageText);
            return 1;            
        }
        string line;
        while ((line = Console.ReadLine()) != null)
 {
            string newLine = line.Replace(("").PadRight(tabSize,
 ' '), "\t");
            Console.WriteLine(newLine);
        }
        writer.Close();
        // Recover the standard output stream so that a 
        // completion message can be displayed.
        StreamWriter standardOutput = new StreamWriter(Console.OpenStandardOutput());
        standardOutput.AutoFlush = true;
        Console.SetOut(standardOutput);
        Console.WriteLine("INSERTTABS has completed the processing of {0}.",
 args[0]);
        return 0;
    }
}

C++

int main()
{
   array<String^>^args = Environment::GetCommandLineArgs();
   const int tabSize = 4;
   String^ usageText = "Usage: INSERTTABS inputfile.txt outputfile.txt";
   StreamWriter^ writer = nullptr;
   if ( args->Length < 3 )
   {
      Console::WriteLine( usageText );
      return 1;
   }

   try
   {
      writer = gcnew StreamWriter( args[ 2 ] );
      Console::SetOut( writer );
      Console::SetIn( gcnew StreamReader( args[ 1 ] ) );
   }
   catch ( IOException^ e ) 
   {
      TextWriter^ errorWriter = Console::Error;
      errorWriter->WriteLine( e->Message );
      errorWriter->WriteLine( usageText );
      return 1;
   }

   String^ line;
   while ( (line = Console::ReadLine()) != nullptr )
   {
      String^ newLine = line->Replace( ((String^)"")->PadRight( tabSize,
 ' ' ), "\t" );
      Console::WriteLine( newLine );
   }

   writer->Close();
   
   // Recover the standard output stream so that a 
   // completion message can be displayed.
   StreamWriter^ standardOutput = gcnew StreamWriter( Console::OpenStandardOutput()
 );
   standardOutput->AutoFlush = true;
   Console::SetOut( standardOutput );
   Console::WriteLine( "INSERTTABS has completed the processing of {0}.",
 args[ 1 ] );
   return 0;
}

J#

public class InsertTabs
{
    private static int tabSize
 = 4;
    private static String usageText = "Usage:
 INSERTTABS inputfile.txt"
        + " outputfile.txt";
    
    public static void main(String[]
 args)
    {
        StreamWriter writer = null;

        if (args.length < 2) {        
            Console.WriteLine(usageText);
            return ;
        }

        try {        
            writer = new StreamWriter(args[1]);
            Console.SetOut(writer);
            Console.SetIn(new StreamReader(args[0]));
        }
        catch (IOException e) {        
            TextWriter errorWriter = Console.get_Error();
            errorWriter.WriteLine(e.get_Message());
            errorWriter.WriteLine(usageText);
            return ;
        }

        String line;
        while (((line = Console.ReadLine()) != null))
 {        
            String newLine = line.Replace("".PadRight(tabSize, ' '), "\t");
            Console.WriteLine(newLine);
        }

        writer.Close();

        // Recover the standard output stream so that a 
        // completion message can be displayed.
        StreamWriter standardOutput = new StreamWriter(Console.
            OpenStandardOutput());
        standardOutput.set_AutoFlush(true);
        Console.SetOut(standardOutput);
        Console.WriteLine("INSERTTABS has completed the processing of {0}.",
 
            args[0]);    
    } //main
} //InsertTabs

JScript

const tabSize = 4;
const usageText = "Usage: INSERTTABS inputfile.txt outputfile.txt";

var writer : StreamWriter = null;
var args = Environment.GetCommandLineArgs();

if (args.Length != 3) {
    Console.WriteLine(usageText);
    Environment.Exit(1);
}

try {
    writer = new StreamWriter(args[2]);
    Console.SetOut(writer);
    Console.SetIn(new StreamReader(args[1]));
}
catch(e : IOException) {
    var errorWriter = Console.Error;
    errorWriter.WriteLine(e.Message);
    errorWriter.WriteLine(usageText);
    Environment.Exit(1);            
}
var line;
while ((line = Console.ReadLine()) != null)
 {
    var newLine = line.Replace(("").PadRight(tabSize,
 ' '), "\t");
    Console.WriteLine(newLine);
}
writer.Close();
// Recover the standard output stream so that a 
// completion message can be displayed.
var standardOutput = new StreamWriter(Console.OpenStandardOutput());
standardOutput.AutoFlush = true;
Console.SetOut(standardOutput);
Console.WriteLine("INSERTTABS has completed the processing of {0}.", args[0]);

.NET Framework のセキュリティ

• SecurityPermission  (アンマネージ コードを呼び出すために必要なアクセス許可)。SecurityPermissionFlag.UnmanagedCode (関連する列挙体)

プラットフォーム

Windows 98, Windows 2000 SP4, Windows CE, Windows Millennium Edition, Windows Mobile for Pocket PC, Windows Mobile for Smartphone, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition

開発プラットフォームの中には、.NET Framework によってサポートされていないバージョンがあります。サポートされているバージョンについては、「システム要件」を参照してください。

バージョン情報

.NET Framework
サポート対象 : 2.0、1.1、1.0
.NET Compact Framework
サポート対象 : 2.0

参照

関連項目
Console クラス
Console メンバ
System 名前空間
TextReader
In