Learning objective
Constants and variables in a programming language: Be able to explain the differences between a variable and a constant. Be able to explain the advantages of using named constants.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Programming
Subtopic
Constants and variables in a programming language
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Quick explanation
Constants and variables in a programming language: Be able to explain the differences between a variable and a constant. Be able to explain the advantages of using named constants
- This point belongs to Programming, especially Constants and variables in a programming language.
- You need to be able to constants and variables in a programming language: Be able to explain the differences between a variable and a constant. Be able to explain the advantages of using named constants.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Why it matters
This objective helps connect Constants and variables in a programming language to exam-style questions, flashcards, and revision notes for Programming.
Quick student answer
Which statement best describes a variable?
Direct answer
A named value that can change during a program
Key terms
- Variable: A named value in a program that can be changed during program execution.
- Constant: A named value in a program that is intended not to change during program execution.
Common trap
Confusing a meaningful name with a constant: Explain that a constant is intended not to change and, where relevant, use the language's appropriate constant declaration, such as const in C#.
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Related learning objectives
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