Which of the Following Statements About an Interface Is True

question 19

Multiple Choice

Which of the following statements about an interface is true?

• A)An interface has both public and private methods.
• B)An interface has methods and instance variables.
• C)An interface has methods but no instance variables.
• D)An interface has neither methods nor instance variables.

---

Definitions:

Causal Relationship

A causal relationship indicates a connection between two variables where changes in the value of one variable are known to cause changes in the value of another variable.

Demand Characteristics

Environmental cues in experiments that might influence participants' behavior or responses, potentially biasing the results.

College Students

Individuals enrolled in institutions of higher education, pursuing various degrees or certifications.

External Validity

The extent to which the results of a study can be generalized to other situations, people, settings, and times.