An Introduction to Ruby

What is Ruby?

Installing Ruby

Executing Ruby Code

Getting Help

Dynamic Types

Ruby Reserved Words

Naming Conventions

Standard Ruby Data Types

Numbers

Strings

Simple Input and Output

Converting String Input

Regular Expressions

Time Methods

Language Components

The if Statement

The case Construct

Loops

Iterators

Numeric Iterators

String Iterators

Methods

Odds and Ends

Collections

Arrays

Array Operator Methods

Array Equality Operator

Arrays as Stacks and Queues

Higher Dimensional Arrays

Other Useful Arrays Methods

Command Line Arguments

Hashes

Common Hash Methods

Sorting Hashes

Iterators with Arrays and Hashes

Arrays and Methods

Hashes and Methods

Named Parameters

Symbols

Procs

Closures

Classes

Objects

Brief History of OOP

OOP Vocabulary

Creating a New Class

Using Objects

Defining Operator Methods

Inheritance

Ancestors

self

Access Levels -public

Access Levels – private

Access Levels - protected

Access Levels -Specification

Class Data and Class Methods

Adding Methods to Classes and

Objects

Special Global Variables

Scope of Variables

Built - in Classes

The Math Class

The NilClass Class

TrueClass and FalseClass

Built - in Class Hierarchy

Input and Output

Introduction

Reading from the Standard Input

Reading a Character at a Time

Writing to the Standard Output

Reading and Writing Disk Files

Reading Files Using Iterators

I/O With Command Line Commands

Seeking About Files

tell

Capturing Data About Files

Proces

Using Directories

Exceptions

Introduction

Exception Hierarchy

Handling Exceptions

Multiple Rescue Clauses

Exceptions are Classes

ensure

retry

raise

Creating Your Own Exceptions

catch and throw

Modules

Introduction

Using Core Ruby Classes

Ruby Standard Library

require

Search Path

File Organization

load

Modules

include

Mixins

Using the Comparable Module

Collection Classes

yield

Using the Enumerable Module

Odds and Ends

Ruby Conventions

Bit Manipulation

Substituting

Marshalling

Reflection

grep

Classes are Objects

Aliasing

Testing

Test::Unit::TestCase

Testing Your Own Classes

Freezing Objects

Object Equality