Export (0) Print
Expand All

Console::WriteLine Method

Writes the current line terminator to the standard output stream.

Namespace:  System
Assembly:  mscorlib (in mscorlib.dll)

[HostProtectionAttribute(SecurityAction::LinkDemand, UI = true)]
public:
static void WriteLine()

ExceptionCondition
IOException

An I/O error occurred.

The default line terminator is a string whose value is a carriage return followed by a line feed ("\r\n" in C#, or vbCrLf in Visual Basic). You can change the line terminator by setting the TextWriter::NewLine property of the Out property to another string. The example provides an illustration.

NoteNote

The HostProtectionAttribute attribute applied to this type or member has the following Resources property value: UI. The HostProtectionAttribute does not affect desktop applications (which are typically started by double-clicking an icon, typing a command, or entering a URL in a browser). For more information, see the HostProtectionAttribute class or SQL Server Programming and Host Protection Attributes.

The example changes the line terminator from its default value of "\r\n" or vbCrLf to "\r\n\r\n" or vbCrLf + vbCrLf. It then calls the WriteLine() and WriteLine(String) methods to display output to the console.


using namespace System;

void main()
{
   array<String^>^ lines = gcnew array<String^> { "This is the first line.", 
                                                  "This is the second line." };
   // Output the lines using the default newline sequence.
   Console::WriteLine("With the default new line characters:");
   Console::WriteLine();
   for each (String^ line in lines)
      Console::WriteLine(line);

   Console::WriteLine();

   // Redefine the newline characters to double space.
   Console::Out->NewLine = "\r\n\r\n";
   // Output the lines using the new newline sequence.
   Console::WriteLine("With redefined new line characters:");
   Console::WriteLine();
   for each (String^ line in lines)
      Console::WriteLine(line);
}
// The example displays the following output:
//       With the default new line characters:
//       
//       This is the first line.
//       This is the second line.
//       
//       With redefined new line characters:
//       
//       
//       
//       This is the first line.
//       
//       This is the second line.


.NET Framework

Supported in: 4, 3.5, 3.0, 2.0, 1.1, 1.0

.NET Framework Client Profile

Supported in: 4, 3.5 SP1

Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2

The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.

Community Additions

ADD
Show:
© 2014 Microsoft