Listing 13-13 extracted from chapter Generics

Listing 13-12<     > Listing 13-14

This listing can be compiled with the command line:
csc.exe /target:library Example_13_13.cs
Errors: 0 Warnings: 0

class C<U> where U : class, new () {
   U u = new U();
   void Fct(){ lock(u){ } }
}