October 2024
Intermediate to advanced
270 pages
8h 13m
Spanish
Content preview from 97 cosas que todo programador Java debe saber
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Capítulo 53. Aprende a utilizar las nuevas funciones de Java
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Gail C. Anderson
Java 8 introdujo las lambdas y los streams, dos características que cambiaron el juego y proporcionaron a los programadores de Java importantes construcciones del lenguaje. A partir de Java 9, los ciclos de lanzamiento se producen cada seis meses, y en cada lanzamiento aparecen más funciones. Deberías preocuparte por estas nuevas funciones porque te ayudan a escribir mejor código. Además, tus habilidades mejorarán a medida que incorpores nuevos paradigmas del lenguaje a tu arsenal de programación.
Se ha escrito mucho sobre los flujos y sobre cómo soportan un estilo de programación funcional, reducen el código voluminoso y hacen que el código sea más legible. Así que veamos un ejemplo con streams, no tanto para convencerte de que utilices streams en todas partes, sino para incitarte a conocer ésta y otras características de Java introducidas desde Java 8.
Nuestro ejemplo calcula el máximo, la media y el mínimo de los valores sistólico, diastólico y de pulso a partir de los datos recogidos del monitoreo de la presión arterial. Queremos visualizar estas estadísticas resumidas calculadas con un gráfico de barras JavaFX.
Aquí tienes una parte de nuestra clase modelo BPData, que muestra sólo ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.