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"Alguns" Padrões Java


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Actualmente tenho tido que investigar bastantes padrões Java, pois vou ter de pôr alguns em prática no meu actual projecto, e descobri o seguinte link que tem um bom conjunto de padrões e para que servem.


Este outro, site tem padrões "novos", "em estudo" e "mas porque raio é que alguém quer isto". Para além de ser uma excelente referência para tudo Java, incluindo livros, papers e novas ideias.


- Destineo

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Já agora, para quem não sabe o que são "patterns", deixo aqui a explicação da própria Sun.

A pattern describes a proven solution to a recurring design problem, placing particular emphasis on the context and forces surrounding the problem, and the consequences and impact of the solution.

Why Use Patterns?

    *  They have been proven. Patterns reflect the experience, knowledge and insights of developers who have successfully used these patterns in their own work.

    *  They are reusable. Patterns provide a ready-made solution that can be adapted to different problems as necessary.

    *  They are expressive. Patterns provide a common vocabulary of solutions that can express large solutions succinctly.

It is important remember that patterns do not guarantee success. A pattern description indicates when the pattern may be applicable, but only experience can provide understanding of when a particular pattern will improve a design.

Leiam mais aqui.

10 REM Generation 48K!
20 INPUT "URL:", A$
30 IF A$(1 TO 4) = "HTTP" THEN PRINT "400 Bad Request": GOTO 50
40 PRINT "404 Not Found"
50 PRINT "./M6 @ Portugal a Programar."


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