C#

string key = string.Concat("test", "::", "test");

John Simmons / outlaw programmer wrote:

with multiple instances of addition, it's more efficient

Guffa wrote:

John Simmons / outlaw programmer wrote:
with multiple instances of addition, it's more efficient


That's true, but that was not what the OP asked for. The question was regardning threee strings, and then the second method is not more efficient.

using (StreamReader sr = new StreamReader("file")) {
    string content = sr.ReadToEnd();
    string[] strings = content.Split('\0');
}

public static string
ReadString
(
    System.IO.Stream Stream
,
    byte             Terminator
)
{
    string result = null ;
    System.Collections.Generic.List<byte> bytes =
        new System.Collections.Generic.List<byte>() ;
    int temp ;

    while ( true )
    {
        temp = Stream.ReadByte() ;

        if ( ( temp == Terminator ) || ( temp == -1 ))
        {
            break ;
        }

        bytes.Add ( (byte) temp ) ;
    }

    if ( bytes.Count > 0 )
    {
        result = System.Text.Encoding.ASCII.GetString ( bytes.ToArray() ) ;
    }
    else
    {
        if ( temp == Terminator )
        {
            result = "" ;
        }
    }

    return ( result ) ;
}