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"Tutorial Questions for the C120.2 Programmig II course at Imperial College London"

In problem 2d33, a Deque (via ArrayDeque) was recommended for reversing the order of line inputs the user gives.

Would it not make more sense to directly use a Stack instance (from java.util, since Java 7), as the question wording even implies this:

and provides the functionality of a stack: push and pop operations

And mention Queues and Deques as an aside instead?

The second solution says

Make interfaces Detached, SemiDetached, and Terraced. Keep Bungalow as an abstract class that extends House. Then have DetachedHouse extend House and implement Detached, and have DetachedBungalow extend Bungalow and implement Detached (the setup for the semi-detached and terraced property types is analogous). You might benefit from drawing a class diagram for this arrangement.

According to the solution above, TerracedBungalow is extending an abstract class Bungalow and implementing an interface Terraced while TerracedHouse is extending an abstract class House and implementing an interface Terraced.
Hence, TerracedBungalow isn't an instance of TerracedHouse while the question claims that TerracedBungalow 'is-a' TerracedHouse (since it says that PropertyCollection has 1020 terraced houses).

Hi Alastair,

I am just wondering when the questions about Java stream (as in TODO) will be posted?

Thank you!

Best wishes,
Leonard