October 2024
Intermediate to advanced
322 pages
7h 7m
Spanish
Content preview from Recetas Java modernas
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Capítulo 7. E/S de archivos
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El paquete de entrada/salida no bloqueante (o "nuevo"), denominado NIO, se añadió en J2SE 1.4.1 La extensión NIO.2, añadida en Java 7, aportó nuevas clases para manipular archivos y directorios. Entre las adiciones se incluyó el paquete java.nio.file, que es el tema de este capítulo. Varias de las nuevas clases de ese paquete, como java.nio.files.File, se han mejorado en Java 8 con métodos que utilizan flujos.
Por desgracia, aquí es donde la metáfora del flujo de la programación funcional entra en conflicto con el mismo término de entrada/salida, lo que puede dar lugar a confusiones. Por ejemplo, la interfaz java.nio.file.DirectoryStream no tiene nada que ver con los flujos funcionales. Está implementada por clases que iteran sobre un árbol de directorios utilizando la construcción tradicional for-each.2
Este capítulo se centra en las capacidades de E/S que admiten flujos funcionales. En Java 8, se añadieron varios métodos a la clase java.nio.file.Files para soportar flujos funcionales. Esos métodos se muestran en la Tabla 7-1. Ten en cuenta que todos los métodos de la clase Files son estáticos.
| Método | Tipo de devolución |
|---|---|
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Las recetas de este capítulo tratan de cada uno de estos métodos. ...
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