Articles related to using variables
Using Variables in Ruby--Assign Information to a Variable - About.com
This tutorial will teach you how to assign information to a variable and how to use variables in Ruby. You'll be using hands-on code, so if you haven't read about ...
Global Variables - Ruby - About.com
They're denoted by beginning with a $ (dollar sign) character. However, the use of global variables is often considered "un-Ruby," and you will rarely see them.
Accessing Ruby Environment Variables - About.com
Ruby has direct access to environment variables via the ENV hash. Environment variables can be directly read or written to by using the index operator with a ...
Using Variables in PHP (Reference Guide) - PHP/MySQL - About.com
A variable is used in programming to represent another value. In PHP variables all start with a dollar sign ($). They can be set to a string or a numeric value.
Using PHP Session Variables - Tutorial - PHP/MySQL - About.com
Once you have set a variable in a PHP session, this tutorial tells you how to retrieve it.
How to Declare and Initialize Variables in Java - About.com
A variable is a container that holds values that are used in a Java program. To be able to use a variable it needs to be declared. Declaring variables is normally ...
Everything You Need to Know About Variables - Ruby - About.com
Ruby maintains tables of known variables and their values for each lexical scope and instance referred to as bindings. Once you start using a variable, Ruby ...
Introduction. In this tutorial we will build on what we learned with our first script by creating a variable and displaying the value of that on our web page instead of ...
Java Syntax - Declaring and Using Constants in Java - About.com
As with normal variables you want to limit the scope of constants to where they are used. If the value of the constant is only needed in a method then declare it ...
Instance Variables in Ruby - About.com
Instance variables are some of the most common and important variables types in Ruby. They begin with the at sign (@) and allow objects to track their internal ...