.NET 4.0 Generics

Time for action – let's say "Hello" to your buddies

Here is the first problem:

Say we have a List of names and we want to print "Hello" in front of all the names:

1. Copy the following code snippet as a query to the LINQPad:

   List<string> nameList1 = new List<string> (){ "Anders", "David", "James", "Jeff", "Joe", "Erik" };
   nameList1.Select(c => "Hello! " + c).ToList().ForEach(c => Console.WriteLine(c));

2. Run the query.

The preceding code snippet will give the following output:

What just happened?

The Lambda expression c => "Hello!" + c is basically creating a projection of the elements of nameList1 List and the result will be an instance of IEnumerable<string> ...