Question

Which of the following are required for a minimal class declaration?

I. Class heading
II. Set of curly braces { } to contain class members
III. One or more constructors
IV. One or more data attributes
a. I, II and III only
b. III and IV only
c. II and III only
d. I, II, III and IV
e. I and II only

Answer 1

A minimal class declaration requires a class heading and a set of curly braces to contain class members; constructors and data attributes are optional. Thus, the correct answer is e. I and II only.

Step-by-step explanation:

To declare a minimal class in programming, the following elements are required:

• Class heading: This specifies the name of the class and is necessary to define any class.
• Set of curly braces { }: These are used to contain the class members and indicate the scope of the class.

Constructors and data attributes, although commonly used, are not strictly necessary for a minimal class declaration. A class can exist without explicitly defined constructors, as most languages will provide a default constructor if none is provided. Data attributes are also not required for a class to be valid; a class can consist of only methods or even be empty. Therefore, the correct answer to this question is e. I and II only.