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

// Runtime exception!

short i = (int)myInts[0];



// Now it is reboxed as WriteLine() requires object types!

Console.WriteLine("Value of your int: {0}",  i);

Console.ReadLine();

}

In an ideal world, the C# compiler would be able to resolve these illegal unboxing operations at



compile time, rather than at runtime. On a related note, in a 

really ideal world, we could store sets

of value types in a container that did not require boxing in the first place. Generics are the solution

to each of these issues.

The Issue of Type Safety and Strongly Typed

Collections

The final major collection-centric issue we have in a generic-free programming world is the fact

that a majority of the types of System.Collections can typically hold anything whatsoever, as their

members are prototyped to operate on System.Objects:

C H A P T E R   1 0  

C O L L E C T I O N S   A N D   G E N E R I C S



319

8849CH10.qxd  9/25/07  4:17 PM  Page 319




static void Main(string[] args)

{


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