background preloader

Introduction to Object Oriented Programming Concepts (OOP) and More

Introduction to Object Oriented Programming Concepts (OOP) and More
Recommended framework: Table of contents 1. Introduction I have noticed an increase in the number of articles published in the Architecture category in CodeProject during the last few months. One day I read an article that said that the richest two percent own half the world's wealth. Coming back to the initial point, I noticed that there is a knowledge gap, increasing every day, between architects who know how to architect a system properly and others who do not. 2. This article began after reading and hearing questions new developers have on the basics of software architecture. As I see it, newcomers will always struggle to understand the precise definition of a new concept, because it is always a new and hence unfamiliar idea. 3. This article is an effort to provide an accurate information pool for new developers on the basics of software architecture, focusing on Object Oriented Programming (OOP). 4. 4.1. 4.2. 4.3. OOP is a design philosophy. 1.

ArticleS.UncleBob.PrinciplesOfOod The Principles of OOD What is object oriented design? What is it all about? Of all the revolutions that have occurred in our industry, two have been so successful that they have permeated our mentality to the extent that we take them for granted. Programs written in these languages may look structured and object oriented, but looks can be decieving. In March of 1995, in comp.object, I wrote an article that was the first glimmer of a set of principles for OOD that I have written about many times since. These principles expose the dependency management aspects of OOD as opposed to the conceptualization and modeling aspects. Dependency Management is an issue that most of us have faced. The first five principles are principles of class design. The next six principles are about packages. The first three package principles are about package cohesion, they tell us what to put inside packages: Sincerely, Henrik Robert, yes thank you, I'm aware of those. OOP is too flexible. No, we aren't stuck.

Alice Programming Tutorial, by Richard G Baldwin Learn to Program using Alice Getting Started In this lesson, you will learn how to download, install, and test the Alice programming environment. You will also learn how to access the tutorials that are provided by the developers of Alice and how to run the example programs that are provided by those developers. Published: March 26, 2007Last updated: April 22, 2007By Richard G. Alice Programming Notes # 100 Preface First in a series This is the first lesson in a series of tutorial lessons designed to teach you how to program using the Alice programming environment under the assumption that you have no prior programming knowledge or experience. My objective in writing this series of lessons is to make it possible for people who have no previous programming experience to learn programming fundamentals using Alice. A lot of fun Because Alice is an interactive graphic 3D programming environment, it is not only useful for learning how to program, Alice makes learning to program fun. The bottom line

Online javascript beautifier Introduction to Java programming, Part 1: Java language basics Introduction to Java programming, Part 1 Object-oriented programming on the Java platform Find out what to expect from this tutorial and how to get the most out of it. About this tutorial The two-part Introduction to Java programming tutorial is meant for software developers who are new to Java technology. Work through both parts to get up and running with object-oriented programming (OOP) and real-world application development using the Java language and platform. This first part is a step-by-step introduction to OOP using the Java language. Part 2 covers more-advanced language features, including regular expressions, generics, I/O, and serialization. Objectives When you finish Part 1, you'll be familiar with basic Java language syntax and able to write simple Java programs. Prerequisites This tutorial is for software developers who are not yet experienced with Java code or the Java platform. System requirements JDK 8 from OracleEclipse IDE for Java Developers Java platform overview The JVM or

jQuery Plugin: Tokenizing Autocomplete Text Entry | James Smith • This Project Has Moved! For the latest version and awesome documentation, please head over to: Overview This is a jQuery plugin to allow users to select multiple items from a predefined list, using autocompletion as they type to find each item. Features Intuitive UI for selecting multiple items from a large list Layout controlled fully in CSS, easily customisable Result caching reduces server load No images required, just the plugin’s .js file and some CSS Handles json search data for autocompletion Smooth animations when results load Select items using the mouse or keyboard Screenshots Vertical list style item selection Facebook style item selection Demo A live demo of the token input is available here. Usage Latest documentation can be found here: License This plugin is released under a dual license. Quick Download Please don’t use these links directly in your scripts, I might change their location at any time. Github Project About the Author

Know Your Bugs: Three Kinds of Programming Errors In this lesson, you will learn about the different types of errors that can occur when writing a program. Even the most experienced programmers make mistakes, and knowing how to debug an application and find those mistakes is an important part of programming. Before you learn about the debugging process, however, it helps to know the types of bugs that you will need to find and fix. Programming errors fall into three categories: compilation errors, run-time errors, and logic errors. The techniques for debugging each of these are covered in the next three lessons. Compilation errors, also known as compiler errors, are errors that prevent your program from running. Most compiler errors are caused by mistakes that you make when typing code. Run-time errors are errors that occur while your program runs. An example of this is division by zero. Speed = Miles / Hours If the variable Hours has a value of 0, the division operation fails and causes a run-time error.

Blog » Blog Archive » Ruby on Rails - Multiple database connections 21 Apr Found a need for this information while answering questions on railsforum. So, let's say that we want to use two databases and let's even say that we want to use an Oracle database and a MySQL database. How can this be done? To start, we must decide which database will be our default database. In this scenario, I chose MySQL. So we have all seen that before. But, I need to use data from an oracle database, so let's setup that connection: Neat, we have two development connections. The line we need to add is this: Even better, we can make this dynamic, so when we are in the test or production environment, we don't need to change the establish_connection line. So the final product could look something like this: database.yml Oracle model example That should be it. ShareThis

Game UI By Example: A Crash Course in the Good and the Bad How easy is it for your player to put their intention into action, or to understand what's going on in your game? In this tutorial, you'll learn how to build a better game UI by examining both good and bad examples from existing games, and end up with a checklist of questions to guide you through designing them. As gamers and game developers we know that immersion is everything. When you're immersed you lose track of time and become involved in what the game is presenting. A composited screenshot from Honey Bee Match 3. In this article I won't be teaching you how to put a UI together. The terms UI and UX are sometimes (incorrectly) used interchangeably, but they have specific meanings. UI, or User Interface, refers to the methods (keyboard control, mouse control) and interfaces (inventory screen, map screen) through which a user interacts with your game. A good UI tells you what you need to know, and then gets out of the way. Does this interface tell me what I need to know right now?

Aho/Ullman Foundations of Computer Science This book has been taken out of print by W. H. Freeman. --- Al Aho and Jeff Ullman Index The Book | Materials | Gradiance | Errata PDF's of the Book PrefaceTable of ContentsChapter 1 Computer Science: The Mechanization of Abstraction Chapter 2 Iteration, Induction, and Recursion Chapter 3 The Running Time of Programs Chapter 4 Combinatorics and Probability Chapter 5 The Tree Data Model Chapter 6 The List Data Model Chapter 7 The Set Data Model Chapter 8 The Relational Data Model Chapter 9 The Graph Data Model Chapter 10 Patterns, Automata, and Regular Expressions Chapter 11 Recursive Description of Patterns Chapter 12 Propositional Logic Chapter 13 Using Logic to Design Computer Components Chapter 14 Predicate Logic Index Supplementary Materials Gradiance Package Available Gradiance is offering a free trial of its automated homeworks for the topics covered by this book. Errata Sheet We are going to try to maintain errata.

Covering inheritance and polymorphism by creating a comic strip with Alice pictures You can use Alice to create pictures for a comic strip. You can use media computation to create the comic panels and strip. The slides that go with this project explain inheritance and polymorphism using types of text balloons. ComicStripExample-part1.pptComicStripExample-part2.pptComicStripProject.doc The zip file has a word document explaining the project, powerpoint slides to use for the media computation part, sample images, and a sample comic strip.