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Chapter 14: Problem 45

T F Static member variables are defined outside their class declaration.

Short Answer

Expert verified
Answer: T (True)

Step by step solution

01

Understanding static member variables

A static member variable is a variable that belongs to the class and is shared among all instances of the class. It is not associated with any particular instance of the class. In C++ and Java, a static variable is declared within the class but outside any method or constructor, using the 'static' keyword.
02

Understanding class declarations

A class declaration is a declaration that defines a new class, its name, and its members. In C++ and Java, a class is defined using the 'class' keyword followed by the class name, and its members are declared within the pair of braces {}. The class declaration includes both member variables and member methods that belong to the class.
03

Analyzing the given statement

The statement "Static member variables are defined outside their class declaration" implies that static member variables are defined separately from the rest of the class's contents. However, this is not entirely accurate. Static member variables are actually declared inside the class declaration, along with other member variables and methods. The differentiation from non-static member variables comes from using the 'static' keyword. In C++ and Java, the declaration and the definition of the static member variables are separate. They are declared within their class declaration and defined outside of it, usually in a source file (C++), or they are initialized in the declaration itself (Java).
04

Verdict

The given statement "Static member variables are defined outside their class declaration" is true for languages like C++ and Java, with the caveat that they also need to be declared within the class declaration with the 'static' keyword. So, the answer to this exercise is T (True).

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