Azriel Rosenfeld

Avinash C. Kak

The rapid rate at which the field of digital picture processing has grown in the past five years had necessitated extensive revisions and the introduction of topics not found in the original edition.

Digital Picture Processing

Here is a book that takes the sting out of learningobject-oriented design patterns! Using vignettes from the fictionalworld of Harry Potter, author Avinash C. Kak provides a refreshingalternative to the typically abstract and dry object-orienteddesign literature. Designing with Objects is unique. It explains designpatterns using the short-story medium instead of sterile examples.It is the third volume in a trilogy by Avinash C. Kak, followingProgramming with Objects (Wiley, 2003) and Scripting with Objects(Wiley, 2008). Designing with Objects confronts howdifficult it is for students to learn complex patterns based onconventional scenarios that they may not be able to relate to. Incontrast, it shows that stories from the fictional world of HarryPotter provide highly relatable and engaging models. Afterexplaining core notions in a pattern and its typical use inreal-world applications, each chapter shows how a pattern can bemapped to a Harry Potter story. The next step is an explanation ofthe pattern through its Java implementation. The following patternsappear in three sections: Abstract Factory, Builder, FactoryMethod, Prototype, and Singleton; Adapter, Bridge, Composite,Decorator, Facade, Flyweight, and Proxy; and the Chain ofResponsibility, Command, Interpreter, Iterator, Mediator, Memento,Observer, State, Strategy, Template Method, and Visitor. Forreaders’ use, Java code for each pattern is included in thebook’s companion website. All code examples in the book are available for download on acompanion website with resources for readers and instructors. A refreshing alternative to the abstract and dry explanationsof the object-oriented design patterns in much of the existingliterature on the subject. In 24 chapters, Designing with Objects explains well-knowndesign patterns by relating them to stories from the fictionalHarry Potter series

Object-Oriented Design Patterns Explained with Stories from Harry Potter

Designing with Objects

Object-Oriented scripting with Perl and Python Scripting languages are becoming increasingly important for software development. These higher-level languages, with their built-in easy-to-use data structures are convenient for programmers to use as "glue" languages for assembling multi-language applications and for quick prototyping of software architectures. Scripting languages are also used extensively in Web-based applications. Based on the same overall philosophy that made Programming with Objects such a wide success, Scripting with Objects takes a novel dual-language approach to learning advanced scripting with Perl and Python, the dominant languages of the genre. This method of comparing basic syntax and writing application-level scripts is designed to give readers a more comprehensive and expansive perspective on the subject. Beginning with an overview of the importance of scripting languages—and how they differ from mainstream systems programming languages—the book explores: Regular expressions for string processing The notion of a class in Perl and Python Inheritance and polymorphism in Perl and Python Handling exceptions Abstract classes and methods in Perl and Python Weak references for memory management Scripting for graphical user interfaces Multithreaded scripting Scripting for network programming Interacting with databases Processing XML with Perl and Python This book serves as an excellent textbook for a one-semester undergraduate course on advanced scripting in which the students have some prior experience using Perl and Python, or for a two-semester course for students who will be experiencing scripting for the first time. Scripting with Objects is also an ideal resource for industry professionals who are making the transition from Perl to Python, or vice versa.

Avinash C. Kak

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