Ruby Programming

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1. An Introduction to Ruby

What is Ruby? Installing Ruby

Executing Ruby Code Getting Help

Dynamic Types

Ruby Reserved Words Naming Conventions

2. Standard Ruby Data Types

Numbers Strings

Simple Input and Output Converting String Input Regular Expressions Time Methods

3. Language Components

The if Statement

The Logical Operators The case Construct Loops

Iterators

Numeric Iterators String Iterators Methods

Odds and Ends

4. 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

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5. 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

6. Input and Output

Introduction

Reading from the Standard Input Writing to the Standard Output

Reflection grep

Classes are Objects Aliasing Testing

Test::Unit::TestCase Testing Your Own Classes Freezing Objects Object Equality

Reading and Writing Disk Files Reading Files Using Iterators

I/O With Command Line Commands Seeking About Files tell

Capturing Data About Files Processing Directories

7. Exceptions

Introduction

Exception Hierarchy Handling Exceptions

Multiple Rescue Clauses Exceptions are Classes ensure retry raise

Creating Your Own Exceptions catch and throw

8. 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

9. Odds and Ends

Ruby Conventions Bit Manipulation Substituting Marshalling