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// Using string.Format() to format a string literal



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[book] [en] Pro C# 2008 and the NET 3.5 Platform Fourth Edition

// Using string.Format() to format a string literal.

C H A P T E R   3  



C O R E   C #   P R O G R A M M I N G   C O N S T R U C T S, PA RT   I



79

8849CH03.qxd  9/24/07  11:07 AM  Page 79




string userMessage = string.Format("100000 in hex is {0:x}",

100000);


// You would need to reference System.Windows.Forms.dll

// in order to compile this line of code!

System.Windows.Forms.MessageBox.Show(userMessage);

}

Notice how string.Format() returns a new string object, which is formatted according to the



provided flags. After this point, you are free to use the textual data as you see fit.

System Data Types and C# Shorthand Notation

Like any programming language, C# defines an intrinsic set of data types, which are used to

represent local variables, member variables, return values, and input parameters. Unlike other pro-

gramming languages, however, these keywords are much more than simple compiler-recognized

tokens. Rather, the C# data type keywords are actually shorthand notations for full-blown types in

the System namespace. Table 3-4 lists each system data type, its range, the corresponding C# key-

word, and the type’s compliance with the Common Language Specification (CLS).


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