2.2.1 Programming Techniques

A set of rules or a sequence of steps specifying how to solve a problem

Sequencing Selecting Iteration

Identifiers given to memory locations whose contents will change during the course of the program

A variable that can be used anywhere in the program

Can only be used within the subroutine in which it is declared

Decisions made that determine the execution

All lines are executed in order

Code is repeated/looped until specific conditions are met

A named block of code which performs a specific task within a program

It’s actual value is passed into the subroutine

The address is passed into the subroutine

Breaking down large tasks into small subtasks.

A subroutine that is defined in terms of itself

Data structures passed into a procedure or function

A software package that helps write the code easily

High level languages such as Basic and Pascal

Removing errors from code Syntax, logic and run-time

A blueprint or template for an object. It defines the attributes and behaviours(methods) of object within the class

Used to create object in a class

The creation of a new object

Bundling data and actions in a class

Where a new class is formed by inheriting all the methods and attributes of another

A programming languages ability to process objects differently depending on their class