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| | Collection Classes - slide 21 : 36 |
It is an advantage to use collections via interfaces instead of classes
If possible, only use collection classes in instantiations, just after new
This leads to programs with fewer bindings to concrete implementations of collections
With this approach, it is easy to replace a collection class with another
 | An animal program - firmly bound to Collections - a problematic choice. |
| A program based on ICollection<Animal> - with a Collection<Animal>. |
| A program based on ICollection<Animal> - with a List<Animal>. |
 | Output from animal collection programs. |