Question

There are interfaces

interface Male {
  boolean likes(Female female);
}

interface Female {
  boolean likes(Male male);
}

There’s also interface

interface GoodCouple {
  Male getMale();
  Female getFemale();
}

You’re given 2 sets:

Iterable<Male> males = ...;
Iterable<Female> females = ...;

And you’re asked to build the set of GoodCouples:

Iterable<GoodCouple> couples = XXXXXXXXXXXX(males, females);

The question is, how would you define XXXXXXXXXXXX? It’s not about algorithm, it’s about architecture: what is XXXXXXXXXXXX? Is it some class’ method? What name would you give to that class? What are responsibilities of this class?

If it matters, languages are either C# or Java.

Answer 1

It might be part of a GoodCoupleFactory: CreateGoodCouples(males, females)