Example Data Types: Integer, and Character
Example (Integer Data Type)
The integer data type can consist of:
data values: −∞,...,−2,−1,0,1,2,...,∞
operations: +,−,∗,%,/,...
Example (Character Data Type)
The character data type can consist of:
data values: \0,..., ’A’,’B’,...,’a’,’b’,..., ’1’, ’2’, ...
operations: <, >, ≤, ≥, ==, ...
Example Data Types: Person, and 2D Points
We can have data types for composite data too.
Example (Person Data Type)
The Person data type can consist of:
data values: { 15, "Bob", "Buckwheat"}, { 50, "Jack", "Bauer" },
...
operations: set/get firstname, set/get lastname, set/get age,
==, ...
Example (2D Point Data Type)
The 2D Point data type can consist of:
data values: (0,0),(1,0),(3.7,−8.5)···
operations: get distance between 2 points, move point, add
points together, ...
Data Structures: Familiar examples
Example (Data Structure: Array)
Elements: All the same data type (integer, float, Person,
etc,.).
Structure: Elements form a contiguous sequence in which
each element is numbered with an index.
Example (Data Structure: Matrix (2D array))
Elements: All the same data type (integer, float, Person,
etc,.).
Structure: Elements form a grid in which each element has a
row and column position.
