A Generic Interface

Interfaces can be generic. IContainer<T> declares void Add(T item) and T Get(int index). Complete the generic Box<T> class using an internal List<T> so Add stores an item and Get returns the item at an index. Do NOT write a Main method.

After adding "apple" then "banana", printing index 0 then index 1 gives the output shown in Expected Output.

Expected Output:

apple↵
banana↵

= newline. The output ends with a newline — print one after the last line.

Hints2 available

Topics:

Interfaces

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