Question

Possible Duplicate:
C# String output: format or concat?

Console.WriteLine("Hi there, {0} {1}!", userName, userSurname);

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Console.WriteLine("Hi there, " + userName + " " + userSurname + "!" );

i wanna know what is different between these to ways and which is better?

Answer 1

The general String.Format vs String concatenation subject has been discussed number of times on StackOverflow, please refer to following questions (just to start with):

• When is it better to use String.Format vs string concatenation?
• C# String output: format or concat?
• Why use String.Format?
• What’s the best string concatenation method using C#?
• c# string formatting