Which of the Following Statements About Interfaces Is True

question 69

Multiple Choice

Which of the following statements about interfaces is true?

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

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Definitions:

Locker Combination

A numerical or alphanumeric code used to secure and unlock a locker.

Algorithm

A step-by-step procedure or formula for solving a problem or completing a task, often used in mathematics and computer science.

Complex Anagram

A puzzle where a word or phrase is formed by rearranging the letters of a different word or phrase, often requiring cognitive effort to solve due to its complexity.

Systematically

In a methodical and organized manner, following a fixed plan or system.