In What Cases Are Adapter Classes Useful

question 9

Multiple Choice

In what cases are adapter classes useful?

• A) When an adapter GUI control is clicked.
• B) When every method in the event-listener interface is to use the same functionality.
• C) When it is not desirable to declare every method in the event-listener interface.
• D) None of the above.

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Definitions:

Loanable Funds

The money available for lending and borrowing in the financial markets.

Price Floor

A government or group-imposed price control or limit on how low a price can be charged for a product, aiming to protect producers.

Price Ceiling

A legally established maximum price that can be charged for a good or service, often set below the equilibrium price to keep essential goods affordable.

Surplus

An excess of something, especially a quantity of a commodity or financial instrument that exceeds what is needed or used.