ProgrammingStudy Notes

Deep Dive: Type Casting

Part of Data TypesGCSE Computer Science

This study notes covers Deep Dive: Type Casting within Data Types for GCSE Computer Science. Revise Data Types in Programming for GCSE Computer Science with 15 exam-style questions and 10 flashcards. This topic appears less often, but it can still be a useful differentiator on mixed-topic papers. It is section 6 of 8 in this topic. Use this study notes to connect the idea to the wider topic before moving on to questions and flashcards.

Topic position

Section 6 of 8

Practice

15 questions

Recall

10 flashcards

Deep Dive: Type Casting

Converting between types:

  • int("42") → 42 (string to integer)
  • str(42) → "42" (integer to string)
  • float("3.14") → 3.14 (string to real)
  • int(3.9) → 3 (real to integer, truncates)

Why cast? You can't add "5" + 3 (string + integer). You need: int("5") + 3 = 8

Keep building this topic

Read this section alongside the surrounding pages in Data Types. That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Data Types

Which data type is most appropriate for storing a student's age?

  • A. String
  • B. Boolean
  • C. Integer
  • D. Real
1 markfoundation

A programmer is creating a system to track gym members. State the most appropriate data type for each of the following and justify your choice: (a) the member's surname, (b) the number of visits this month, (c) whether the membership is active.

3 marksstandard

Quick Recall Flashcards

What is type casting?
Converting data from one type to another
What data type is 42?
Integer

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