Which of the Following Statements About Interfaces Is True

question 87

Multiple Choice

Which of the following statements about interfaces is true?

• A)You cannot define a variable whose type is an interface.
• B)You can define an interface variable that refers to an object of any class in the same package.
• C)You can define an interface variable that refers to an object only if the object belongs to a class that implements the interface.
• D)You can instantiate an object from an interface class.

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Definitions:

Validity

The degree to which a measure actually measures what it is intended to measure.

Researcher's Interpretations

The conclusions or explanations made by researchers based on their findings from studies, which are subject to academic scrutiny and debate.

Measurements

The process of obtaining quantitative data or the magnitude of something using standard units.

Experimental Groups

Groups in scientific research that receive the intervention or treatment being tested, as opposed to a control group which does not.