Why "\n" cannot be detected when using Console.Wite(Console.Readline())?

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Hi.
When I use this code, that's okay:

C#

string str = "Hello\nWorld!";
Console.Write(str);

But, It's not working by using:

C#

Console.Write(Console.ReadLine());

I type:

HTML

Hello\nWorld!

The result is:

HTML

Hello\nWorld!

This code was same:

C#

string temp = Console.ReadLine();
Console.Write(temp);
Console.Write(temp.ToString());

Is there any way to fix it?
Thanks!

Posted 7-Dec-14 17:24pm

user8x86

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PIEBALDconsult 7-Dec-14 23:35pm

Uh, yeah \n only means "newline" when used in a string literal in the C# code, not at the command line.
As an experiment (I don't know whether or not it will work), try typing Ctrl-J, it'll look like ^J. Let us know whether or not it works.

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Sergey Alexandrovich Kryukov · Accepted Answer · 2014-12-07T17:34:00

Apparently, you don't see the difference between string literal and actual content of a string. Your "\n" is just a string with two characters, '\' and 'n', no more. It does not mean "new line" character (#10). It becomes this character only if your put it in C# string literal; and then it is compiled and turned into an immediate string value in the loaded code. You could understand it in first place, if you paid a bit more attention when your read C# manual or reference:
http://msdn.microsoft.com/en-us/library/aa691090%28v=vs.71%29.aspx[^].

You cannot enter "new line" character in a System.Console read calls, because… this is the end of line. Normally, it is entered in UI with input text box control, where it is done by pressing enter (which, in case of console, simply ends the input). By the way, end of line characters depends on the platform; on Windows, it is usually used with "\r". For further detail, please see: http://en.wikipedia.org/wiki/End_of_line[^].

—SA