// Generic interfaces interface Foo<R,S> { void Hello (R r, S s); } interface Bar<T,U,V> : Foo<V,float> { void Test (T t, U u, V v); } class X { static void Test (Bar<long,int,string> bar) { bar.Hello ("Test", 3.14F); bar.Test (512, 7, "Hello"); } public static void Main () { } }