Data Types A-Level

• Computing
• Upper Secondary (Key Stage 4)
• GCSE

Data Types

24/01/24

What data types can you name?

Integer (int)

Integer

Represents whole numbers without any decimal points. Examples: -3, 0, 42.

Floating point (float)

Floating point (float)

 Represents numbers with decimal points. 

Examples: -3.14, 2.718, 0.0.

Character (char)

Character (char)

Represents a single character

Examples: 'a", """ or "5".

Boolean (bool)

Boolean (bool)

Represents true or false values.

Examples: 1/0, true/false

String

String

Represents a sequence of characters. 

Example: "Hello, World!", "Oi, that's my sandwich. Yours is still in the fridge."

Array

Array

A collection of elements of the same data type. 

Example: int numbers[5] = {1, 2, 3, 4, 5};

Date/Time

Date/Time

Used to represent dates.

Examples: "20/01/2023".

Record

Record

A record is a composite data type that groups together related data fields under one name.

student_record = {"name":"Dave Davidson", "age":18, "grade":"A"}