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 46. Tipos de comentarios
Este trabajo se ha traducido utilizando IA. Agradecemos tus opiniones y comentarios: translation-feedback@oreilly.com
Nicolai Parlog
Supongamos que quieres poner algunos comentarios en tu código Java. ¿Utilizas /**, /*, o //? ¿Y dónde los pones exactamente? Más allá de la sintaxis, hay prácticas establecidas que atribuyen semántica a qué se utiliza y dónde.
Comentarios Javadoc para Contratos
Los comentarios Javadoc (los que van encerrados en /** ... */) se utilizan exclusivamente en clases, interfaces, campos y métodos, y se colocan directamente encima de ellos. Aquí tienes un ejemplo de Map::size:
/** * Returns the number of key-value mappings in this map. If the * map contains more than Integer.MAX_VALUE elements, returns * Integer.MAX_VALUE. * * @return the number of key-value mappings in this map */ int size();
El ejemplo demuestra tanto la sintaxis como la semántica: un comentario Javadoc es un contrato. Promete a los usuarios de la API lo que pueden esperar, manteniendo intacta la abstracción central del tipo al no hablar de los detalles de implementación. Al mismo tiempo, obliga a los implementadores a proporcionar el comportamiento especificado.
Java 8 relajó un poco esta rigurosidad, al tiempo que formalizaba diferentes interpretaciones mediante la introducción de las etiquetas (no estandarizadas) @apiNote, @implSpec y @implNote. Los ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
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.
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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.