October 2024
Intermediate to advanced
322 pages
7h 7m
Spanish
Content preview from Recetas Java modernas
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Prefacio
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Java moderno
A veces cuesta creer que un lenguaje con literalmente 20 años de compatibilidad con versiones anteriores pueda cambiar tan drásticamente. Antes del lanzamiento de Java SE 8 en marzo de 2014,1 con todo su éxito como lenguaje de programación definitivo del lado del servidor, Java había adquirido la reputación de ser "el COBOL del siglo XXI". Era estable, omnipresente y se centraba sólidamente en el rendimiento. Los cambios se producían lentamente, cuando se producían, y las empresas sentían poca urgencia por actualizarse cuando había nuevas versiones disponibles.
Todo eso cambió cuando se lanzó Java SE 8. Java SE 8 incluía el "Proyecto Lambda", la principal innovación que introdujo conceptos de programación funcional en lo que posiblemente era el principal lenguaje orientado a objetos del mundo. Las expresiones lambda, las referencias a métodos y los flujos cambiaron radicalmente los modismos del lenguaje, y los desarrolladores han intentado ponerse al día desde entonces.
La actitud de este libro no es juzgar si los cambios son buenos o malos, o si podrían haberse hecho de otra manera. El objetivo es decir: "esto es lo que tenemos, y así es como puedes utilizarlo para hacer tu trabajo". Por eso este libro está diseñado como un libro de recetas. Se trata de lo que necesitas hacer, y de cómo las nuevas funciones de Java te ayudan a hacerlo.
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