CSC/ECE 517 Fall 2011/ch1 1h ps

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Common Attribute/Member Syntax

Different object oriented programming languages include different ways of accessing the member variables and methods. This page discusses the various usages and their advantages and disadvantages.

Introduction

The purpose of Object Oriented Programming is to make programs model things the way people think or deal with the world i.e it's modeled around data rather than logic. Objects form the basis of OOP. Let us now look at objects, their manipulation and the ways to do so.


Objects

Similar to real world objects, software objects also consist of state and related behavior. An object stores it's state in attributes and exposes its behavior through methods. Let's look at the pseudo code for a bicycle object.


CLASS Bicycle
ATTRIBUTES:
	speed: NUMBER
	gear: NUMBER
	pedal_cadence: NUMBER
METHODS:
	ride(speed)
	changeGear(gear)
	changeCadence(pedal_cadence)
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