This print for content only-size & color not accurate 7" X 9-1/4" / casebound / malloy

// Compiler error below!

short numb1 = 30000, numb2 = 30000;

short answer = Add(numb1, numb2);

Console.WriteLine("{0} + {1} = {2}",

numb1, numb2, answer);

Console.ReadLine();

}

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8849CH03.qxd  9/24/07  11:07 AM  Page 95

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In this case, the compiler reports the following error:

Cannot implicitly convert type 'int' to 'short'. An explicit conversion exists

(are you missing a cast?)

The problem is that although the Add() method is capable of returning an int with the value

60,000 (as this fits within the range of a System.Int32), the value cannot be stored in a short (as it

overflows the bounds of this data type). Formally speaking, the CLR was unable to apply a

narrowing operation. As you can guess, narrowing is the logical opposite of widening, in that a

larger value is stored within a smaller variable.

It is important to point out that all narrowing conversions result in a compiler error, even when

you can reason that the narrowing conversion should indeed succeed. For example, the following

code also results in a compiler error: