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String handling operations in a programming language

String handling operations in a programming language

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Question 4

The variables site, dept, and code are assigned values as shown below:

site ← 'Southampton'
dept ← 'Aerospace'
code ← 'SOT-102A'

A programmer executes the following sequence of instructions to format a database key:

r1 ← SUBSTRING(5, 4, dept)
r2 ← SUBSTRING(0, 5, site)
r3 ← SUBSTRING(3, 1, code)

result ← r1 + r3 + r2
y ← LEN(result)

What is the value of the variable y after these statements are executed?

Assume that the pseudocode SUBSTRING(startPosition, numberOfCharacters, string) uses 0-based indexing.

A

555

B

999

C

101010

D

111111

Markscheme

String handling operations in a programming language Questions

  1. GCSE
  2. /Computer Science
  3. /String handling operations in a programming language

89 exam-style questions on AQA GCSE Computer Science String handling operations in a programming language. Each one has a worked solution and a mark scheme showing where the marks go.

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