Learning objective
Global variables in a programming language: Be able to contrast local variables with global variables.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Programming
Subtopic
Global variables in a programming language
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Quick explanation
Global variables in a programming language: Be able to contrast local variables with global variables
- This point belongs to Programming, especially Global variables in a programming language.
- You need to be able to global variables in a programming language: Be able to contrast local variables with global variables.
- 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 Global variables in a programming language to exam-style questions, flashcards, and revision notes for Programming.
Quick student answer
Which statement best contrasts a local variable with a global variable?
Direct answer
A local variable is available only within its defined local section, while a global variable is available from a wider part of the program.
Key terms
- Local variable: A variable whose scope is limited to the function or other local section in which it is defined.
- Global variable: A variable defined outside a local section and available from a wider part of the program.
Common trap
Confusing where a variable is defined with what data it stores: Classify a variable by its scope and definition location. A local or global variable can store different kinds of data.
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