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Chapter 2: Problem 20

A(n) ___________ is like a variable, but its value is read-only and cannot be changed during the program’s execution. A) secure variable B) uninitialized variable C) named constant D) locked variable

Short Answer

Expert verified
Answer: The term that defines a variable with a read-only value that cannot be modified during the program's execution is a named constant. Other options, such as secure variable, uninitialized variable, and locked variable, do not accurately describe this concept.

Step by step solution

01

Identify the correct term for a read-only variable

The correct term for a variable whose value stays constant and cannot be changed during the program's execution is a named constant.
02

Briefly describe the incorrect options

A) A secure variable might imply a variable with specific security measures or encryption, but it does not necessarily mean it has a constant value. B) An uninitialized variable just hasn't been assigned a value yet, which means it could still be changed or altered during the program's execution. D) A locked variable is not a common programming term, and could be misleading to describe a constant value.
03

Combine the correct term and explanations for other options

The correct answer is C) named constant. A named constant is a variable with a constant value that cannot be changed throughout the program's execution. In contrast, a secure variable (A) might have security measures, an uninitialized variable (B) hasn't been assigned a value, and a locked variable (D) is not a proper term to describe a constant value.

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Most popular questions from this chapter

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