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Design Patterns in Java LiveLessons (Video Training)

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Design Patterns in Java LiveLessons (Video Training)

Design Patterns in Java LiveLessons
English | 3.10GB
Genre: E-learning

Course Summary
Despite many improvements in hardware, developing quality software on-time and under budget remains hard. Moreover, developing high quality reusable software is even harder. In my experience, the principles, practices, and skills required to develop such software are best learned by gaining a firm understanding of patterns, pattern languages, and frameworks.

A pattern describes a reusable solution to a common problem that arises within a particular context of software design. When related patterns are woven together they form a pattern language that provides vocabulary and a process for the orderly resolution of software development problems. A framework is an integrated set of software components that collaborate to provide a reusable architecture for a family of related applications. Frameworks can also be viewed as concrete realizations of pattern languages that facilitate direct reuse of detailed designs and source code.

This LiveLessons course describes how to apply patterns and frameworks to alleviate the complexity of developing software via the use of object-oriented design techniques and Java programming language features. We'll use a case study based on many patterns in the book Design Patterns: Elements of Reusable Object-Oriented Software (the so-called ``Gang of Four'' or ``GoF'' book) to showcase pattern-oriented design and programming techniques in Java. This case study will help us evaluate the limitations with alternative design and programming methods (such as algorithm decomposition) and demonstrate by example how patterns and object-orientation help alleviate these limitations.
The following is a summary of the key topics covered in this course:

Lesson 1 presents an overview of patterns to help you recognize the importance of design experience, understand how patterns can help improve software quality and developer productivity, identify common characteristics in pattern descriptions, and know the history of the Gang of Four book and its patterns, as well as know key relationships between patterns.

Lesson 2 presents the functional and non-functional requirements of object-oriented expression tree app that we'll use throughout the course as a realistic--yet tractable--case study to motivate the need for--and benefits of--key Gang of Four patterns written in Java that run on a range of runtime platforms, including Android and Eclipse.

Lesson 3 presents an algorithmic decomposition of the expression tree processing app to help you understand and evaluate the benefits and limitations of this historically popular design paradigm.

Lesson 4 presents an object-oriented design of the expression tree processing app to help you understand and evaluate the benefits and limitations of this paradigm.

Lesson 5--which is the bulk of the course--describes how more than a dozen patterns from the ``Gang of Four'' book can be applied to resolve various design problems in the Java expression tree processing app implementation, including improving its modularity, extensibility, portability, and quality. The Gang of Four patterns we cover in detail include the following:

Composite, which treats individual objects and multiple, recursively-composed objects uniformly.

Bridge, which separates an abstraction from its implementation(s) so the two can vary independently.

Interpreter, which when given a language, define a representation for its grammar, along with an interpreter that uses the representation to interpret sentences in the language.

Builder, which separate the construction of a complex object from its representation.

Iterator, which accesses elements of an aggregate without exposing its representation.

Strategy, which defines a family of algorithms, encapsulate each one, and make them interchangeable to let clients and algorithms vary independently.

Visitor, which centralizes operations on an object structure so that they can vary independently, but still behave polymorphically.

Command, which encapsulates the request for a service as an object.

Factory Method, which provide an interface for creating an object, but leaves choice of object.s concrete type to a subclass.

State, which allows an object to alter its behavior when its internal state changes.the object will appear to change its class.

Template Method, which provides a skeleton of an algorithm in a method, deferring some steps to subclasses.

and finally Singleton, which ensures a class only has one instance and provides a global point of access.

We'll also touch on several other Gang of Four patterns, including Abstract Factory, Observer, Adapter, and Decorator.

Finally, lesson 6 wraps up the course by discussing of the benefits and limitations of patterns.

Course Objectives
Upon completing this course, students will be able to:

Recognize the inherent and accidental complexities involved with developing object-oriented software.

Understand how pattern-oriented software architecture techniques can and cannot help to alleviate this complexity.

Apply key pattern-oriented software architecture techniques to develop reusable object-oriented software infrastructure and apps.

Utilize Java programming language features and libraries to object-oriented software.

Know where to find additional sources of information on how to successfully apply pattern-oriented software architecture techniques to object-oriented software.

Recommended Background
This course is intended for software developers who are familiar with

General object-oriented design and programming concepts, such as encapsulation, abstraction, polymorphism, extensibility, and the Unified Modeling Language (UML), and

Core object-oriented programming language features, such as classes, inheritance, dynamic binding, and generics, that are available in Java.

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3 January 2014 12:13

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I'm new around here, I've downloaded this course but, what is the password?

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