What Is Required for an Interface Method That Has a Body

question 4

Multiple Choice

What is required for an interface method that has a body?

• A) The method header must begin with the key word default.
• B) A class that implements the interface must override the method.
• C) The @Default annotation must precede the method header.
• D) All of these are true.

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Definitions:

Demand Curve

A graphical representation showing the relationship between the price of a good or service and the quantity demanded by consumers, typically downward sloping.

Monopsony Power

The market power held by a single buyer to influence the price at which they purchase goods or services.

Elasticity Of Supply

The degree to which the quantity supplied of a good changes in response to a change in its price.

Marginal Value

The additional benefit received by consuming or using one more unit of a good or service.