Which of the Following Statements About Adapters Is False

question 24

Multiple Choice

Which of the following statements about adapters is false?

• A) An adapter class implements an interface.
• B) An adapter class provides a default (empty) implementation of every method in the interface.
• C) Programmers override selected adapter methods.
• D) A ComponentListener is a ComponentAdaptor.

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Definitions:

Unit Sales

A measurement of the total quantity of units of a product sold by a company.

Contribution Margin

The sum left over from sales income once all variable costs are subtracted.

Fixed Expenses

Costs that do not change with the level of production or sales over a certain time period, such as rent, insurance, and salaries.

Break Even

A situation where the overall expenses match the overall income, causing zero net profit or loss.