Problem with Class and calling it as an Iterable.

[blissful bloom]

On an exercise test it calls the class as an argument (no method or anything, just its variable name), but the expected parameter is Iterable<T>. How does this work? Is there something wrong with the test. The three related code snippets consists of a: Interface Container, an Iterator for that interface, and the class using the interface.

Note: I did try to change the test so the parameter expects a Container and then the class with the interface runs an Iterator method, but I doubt this is the correct solution.

[torn linden]

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[blissful bloom]

Uploaded wrong class.
Here is the correct one:

problem occurs in the last method in CardDeckTest.java

[olive ledge]

Most likely, CardContainer should implement Iterable<Card>

Ah sorry. Extend. It should extend Iterable<Card>

[blissful bloom]

Hm i see, i've never used Extends before

what does it do

i've read it has something to do with super

[olive ledge]

It makes the class or interface inherit from the mentioned class or interface

In the case of an interface that extends another, it means that implementation of the extending interface, need to implement the methods declared by both interfaces (and any ancestors if there are some)

That also means that the extending interface is a subtype of the extended interface

So, if CardContainer extends Iterable<Card>, then you may pass a CardContainer where an Iterable<Card> is expected

[blissful bloom]

Holy guacamole.

thank you very much

this resolved the problem i had

ill close the post now