ProgrammingStudy Notes

Deep Dive: Loop Examples

Part of Iteration (Loops)GCSE Computer Science

This study notes covers Deep Dive: Loop Examples within Iteration (Loops) for GCSE Computer Science. Revise Iteration (Loops) in Programming for GCSE Computer Science with 15 exam-style questions and 8 flashcards. This is a high-frequency topic, so it is worth revising until the explanation feels precise and repeatable. It is section 4 of 7 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 4 of 7

Practice

15 questions

Recall

8 flashcards

Deep Dive: Loop Examples

FOR loop (count-controlled):

for i = 1 to 5
    print(i)
next i
// Output: 1 2 3 4 5

WHILE loop (condition-controlled):

password = ""
while password != "secret"
    password = input("Enter password")
endwhile

DO-WHILE loop (runs at least once):

do
    choice = input("Enter 1, 2, or 3")
until choice >= 1 AND choice <= 3

Keep building this topic

Read this section alongside the surrounding pages in Iteration (Loops). That gives you the full topic sequence instead of a single isolated revision point.

Practice Questions for Iteration (Loops)

Which type of loop is best used when you know exactly how many times the loop should repeat?

  • A. WHILE loop
  • B. FOR loop
  • C. REPEAT-UNTIL loop
  • D. IF statement
1 markfoundation

Explain what an infinite loop is, state one cause of an infinite loop, and describe one consequence of running an infinite loop in a program.

3 marksstandard

Quick Recall Flashcards

When use a FOR loop?
When you know how many times to repeat
What is iteration?
Repeating a set of instructions

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