Variables and Constants Flashcards

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Note: We may include questions that have multiple correct answers. It's useful to remember specific examples to understand these concepts better.

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What is a variable in programming?

A named place in memory that holds a value which can change while the program runs.

A named value that does not change while the program runs.

A variable can change during the run. A constant stays the same.

It makes code clear, avoids repeats, and lets you update it in one place.

Give the variable its first value before you use it.

It can cause an error or a wrong result, so set it first.

Store a value in the variable, for example set score to 0.

Yes. You can give it a new value later in the program.

No. A constant must not change while the program runs.

Variable: score or temperature. Constant: PI, VAT rate, or school name.

A literal is written straight in code, like 10 or 'red'. A constant is a named fixed value.

In the computer's memory, such as RAM.