Ruby Programming

Skills Gained

The delegate will learn to:

• Declare variables and initialise them
• Construct expressions with arithmetic, logical and relational operators
• Use iterative type statements
• Use conditional statements
• Read/write files
• Manipulate text using regular expression
• Use and create Ruby Objects
• Use built-in library functions

Who will the Course Benefit?

Programmers who need to write or maintain scripts in Ruby and projects based on Ruby.

Course Objectives

Knowledge of Ruby to write, modify, maintain and understand Ruby scripts.

Requirements

Familiarisation with programming concepts is useful, this knowledge can be obtained by attendance on the Concepts of Programming course.

Follow-On Courses

• Ruby on Rails
• Apache Web Server
• Introduction to MySQL
• Perl Programming
• PHP Programming
• PHP & MySQL for Web Development
• PHP Programming & MySQL for Web Development

NOTE: Course technical content is subject to change without notice.

Course Contents

Course Introduction

• Administration and Course Materials
• Course Structure and Agenda
• Delegate and Trainer Introductions

Session 1: INTRODUCTION TO RUBY

• What is Ruby
• What is it used for
• Installing Ruby?
• Ruby Basics - objects, regular expressions, arrays, hashes, Object Orientation

Session 2: RUBY LANGUAGE ELEMENTS

• Variables and constants
• Operators
• Assignments
• Integer, float and string formats
• Single and double quotes
• Here documents
• Labs

Session 3: CONTROL STRUCTURES

• Blocks and if statement
• Boolean and range operators
• Conditionals - if, unless, case
• Loops - while, for in, until
• break, next, retry and redo
• Labs

Session 4: CLASSES AND OBJECTS

• Objects, classes and methods
• Constructors and attributes
• Instance and class variables
• Local and global variables
• Class and object methods
• Including external files - load and require
• Labs

Session 5: INPUT AND OUTPUT IN RUBY

• Opening and closing files
• Reading from and writing to files
• Labs

Session 6: ARRAYS AND HASHES IN RUBY

• Arrays and hashes
• Building an array
• The %w shortcut
• Nesting arrays
• Hash keys
• Iterators
• Labs

Session 7: OBJECT ORIENTATION

• Inheritance
• Base classes and subclasses
• What's inherited
• Overriding
• Abstract classes
• Polymorphism
• Multiple Inheritances
• Class structure
• Visibility
• Labs

Session 8: CLASSES AND OBJECT SCOPING

• Public, private and protected visibility
• Singletons and defs
• Inheritance mixins
• Destructors and garbage collection
• Namespaces and modules
• Hooks
• Freezing objects
• Labs

Session 9: OBJECT ORIENTATION TECHNIQUES

• Clusters of classes
• Programming and method standards
• Formal Methods
• Unified Modelling Language (UML)
• Views

Session 10: STRINGS AND REGULAR EXPRESSIONS

• Meta Characters
• Anchors, literals, character groups and counts
• Matching in Ruby
• Modifiers i, o, x and m
• Pattern matching variables
• Labs

Session 11: SPECIAL VARIABLES AND PSEUDO-VARIABLES

• ARGV and $0
• Special variables
• Environment variables
• Pseudo-variables
• Reserved words in Ruby
• Labs

Session 12: EXCEPTIONS

• begin and end
• Raise and rescue
• Throw and catch
• labs