Difference b/w String and string [duplicate]

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In C# what is the difference between String and string

String vs string in C#

Hi,

Can anyone tell me the difference between the two lines of code below:

public const String sample = "Sample";
public const string sample2 = "Sample2";

Both "String" and "string" are of System.String.

Thanks in advance.

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These data types are exactly the same, as string is just an alias for the class String. If you have a look, there are similar capitalized and non capitalized versions of int, float and similar classes.

Have a look here for a more detailed answer.

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There are the same

string is an alias in the C# for .Net System.String, like int is for Int32, long is for int64 and etc. C# string replaced by System.String during compilation

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No difference what so ever - in fact you can write the following code:

String sample = "Sample";
string sample2 = sample;

Both maps to the same IL string type

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String vs string in C#

String stands for System.String and it is a .NET Framework type. string is an alias in the C# language for System.String. Both of them are compiled to System.String in IL (Intermediate Language), so there is no difference. Choose what you like and use that. If you code in C#, I'd prefer string as it's a C# type alias and well-know by C# programmers.

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String is CTS type but string is c# string object.

You can use String to any of dot net language.

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both are the same string -> c# type which gets converted to String -> .net type

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String is the .NET class for the CLR built-in string type. string is the C# language identifier that maps to the CLR String type. They are the same thing.

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"string" is actually an alias for System.String. They're the same.

Try:

typeof(string) == typeof(String) == typeof(System.String)

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Nothing really, in C# the type keywords actually are synonyms for the types. So int = System.Int32 short = System.Int16 and string = System.String.

They have the keywords because they are easier to remember and programmers coming from other languages like c/c++ would also be familiar with these types.

Anyway, look at the C# keyword reference and you can find these things out. This was taken from the string keyword reference.

The string type represents a string of Unicode characters. string is an alias for String in the .NET Framework. Strings are immutable--the contents of a string object cannot be changed after the object is created.