Which two components can class declarations include?

Question

Options

• AA list of instance methods
• BThe main method
• CInterfaces implemented by the class
• DThe public modifier

• A
  4% (2)
• B
  2% (1)
• C
  95% (53)

Explanation

Class declarations (the header line, e.g., public class Animal implements Runnable) can include both C (interfaces implemented) and D (the public modifier) - making this a two-answer question where both C and D are correct.

Why C is correct: The implements clause is a direct part of the class declaration syntax, listing which interfaces the class fulfills (e.g., class Dog implements Animal, Serializable).

Why D is correct: Access modifiers like public appear in the declaration header itself - public class Foo - not inside the class body.

Why A and B are wrong: Instance methods and the main method live inside the class body (the { } block), not in the declaration. The declaration is just the signature line before the opening brace.

Memory tip: Think of a class declaration as a "job posting header" - it announces the class name, its access level (public), and what contracts it fulfills (implements). The actual work (methods, logic) goes inside the body. If you can write it before the {, it belongs to the declaration.

No community discussion yet for this question.