output for the following c# snippet [closed]

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class Program
{

    static void Main(string[] args)
    {
        Program p = new Program();
  开发者_StackOverflow社区      string s = p.ToString();
        Console.WriteLine(s.Length);
        Console.Read();
    }
}

The output I am receiving is 27 Why?

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Because the string representation of Program class, basically it's full name (namespace and class name) as string has this number of characters.

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The default implementation of the ToString method is to return the name of the type, so your string s contains the full type name of the Program class, i.e. something like "MySecondTestProgram.Program", and that is what you are getting the length of.