Introduction to Variables

Introduction

In a programming language you need several things:
   1. Ways of holding the Data
   2. Ways of evaluating the data
   3. Ways of manipulating the data

These exist in a programming language as:
   1. Variables
   2. Operators
   3. Functions/Expressions/Objects

In this tutorial we will be discussing variables, the others will be dealt with later. We will be looking at what they are, how to name them, define its scope, how to assign a value to it and we'll finish off by talking about text field variables and how to apply them. So let's get started.