TAILIEUCHUNG - Refactoring: Improving the Design of Existing Code

"Refactoring" was conceived in Smalltalk circles, but it wasn't long before it found its way into other programming language camps. Because refactoring is integral to framework development, the term comes up quickly when "frameworkers" talk about their craft. It comes up when they refine their class hierarchies and when they rave about how many lines of code they were able to delete. Frameworkers know that a framework won't be right the first time around—it must evolve as they gain experience. They also know that the code will be read and modified more frequently than it will be written. The key to keeping code readable and modifiable. | Refactoring Improving the Design of Existing Code by Martin Fowler Kent Beck Contributor John Brant Contributor William Opdyke don Roberts Another stupid release 2002 For all the people which doesn t have money to buy a good book Your class library works but could it be better Refactoring Improving the Design of Existing Code shows how refactoring can make object-oriented code simpler and easier to maintain. Today refactoring requires considerable design know-how but once tools become available all programmers should be able to improve their code using refactoring techniques. Besides an introduction to refactoring this handbook provides a catalog of dozens of tips for improving code. The best thing about Refactoring is its remarkably clear presentation along with excellent nuts-and-bolts advice from object expert Martin Fowler. The author is also an authority on software patterns and UML and this experience helps make this a better book one that should be immediately accessible to any intermediate or advanced object-oriented developer. Just like patterns each refactoring tip is presented with a simple name a motivation and examples using Java and UML. Early chapters stress the importance of testing in successful refactoring. When you improve code you have to test to verify that it still works. After the discussion on how to detect the smell of bad code readers get to the heart of the book its catalog of over 70 refactorings --tips for better and simpler class design. Each tip is illustrated with before and after code along with an explanation. Later chapters provide a quick look at refactoring research. Like software patterns refactoring may be an idea whose time has come. This groundbreaking title will surely help bring refactoring to the programming mainstream. With its clear advice on a hot new topic Refactoring is sure to be essential reading for anyone who writes or maintains object-oriented software. Richard Dragan Topics Covered Refactoring improving .

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