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

// This method will swap any two items.

// as specified by the type parameter .

static void Swap(ref T a, ref T b)

{

Console.WriteLine("You sent the Swap() method a {0}",

typeof(T));

T temp;

temp = a;

a = b;

b = temp;

}

Notice how a generic method is defined by specifying the type parameter after the method

name but before the parameter list. Here, you’re stating that the Swap() method can operate on any

two parameters of type . Just to spice things up a bit, you’re printing out the type name of the

supplied placeholder to the console using the C# typeof() operator. Now consider the following

Main() method that swaps integer and string types:

static void Main(string[] args)

{

Console.WriteLine("***** Fun with Custom Generic Methods *****\n");

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8849CH10.qxd  9/25/07  4:17 PM  Page 327

---

// Swap 2 ints.

int a = 10, b = 90;

Console.WriteLine("Before swap: {0}, {1}", a, b);

Swap(ref a, ref b);

Console.WriteLine("After swap: {0}, {1}", a, b);

Console.WriteLine();