Covariant Generic Interface

Make the generic interface IProducer<T> covariant and complete StringProducer. Produce must return the string that was passed to the constructor. The interface must be covariant so that an IProducer<string> can be assigned to an IProducer<object>. Do NOT write a Main method.

The tester creates a StringProducer("hello"), assigns it to an IProducer<object> variable, and prints the produced value (see Expected Output).

Expected Output:

hello↵

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

Hints2 available

Topics:

Interfaces

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