November 2024
Intermediate to advanced
638 pages
16h 24m
French
Content preview from Livre de cuisine Java, 4e édition
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Chapitre 6. Dates et heures
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6.0 Introduction
Les développeurs ont souffert pendant une décennie et demie des incohérences et des ambiguïtés de la classe Date de Java 1.0 et de son remplaçant, la classe Calendar de Java 1.1. Plusieurs paquets alternatifs de remplacement de Date ont émergé, y compris le simple et sensé Date4J et le paquet plus complet Joda-Time. Java 8 a introduit un nouveau paquetage cohérent et bien pensé pour la gestion de la date et de l'heure sous l'égide du Java Community Process, JSR-310, dirigé par le développeur Stephen Colebourne, basé sur son paquetage précédent Joda-Time, mais avec plusieurs changements de conception importants.1 Ce paquetage est orienté vers les dates ISO 8601 ; le format par défaut est, par exemple, 2015-10-23T10:22:45. Mais il peut, bien sûr, fonctionner avec d'autres calendriers.
L'un des principaux avantages de la nouvelle API est qu'elle fournitdes opérations utiles telles que l'addition/soustraction de dates et d'heures. Les développeurs perdaient beaucoup de temps à réimplémenter ces opérations utiles encore et encore. Cela dit, des millions de lignes de code sont basées sur les anciennes API, nous les passerons donc brièvement en revue et nous envisagerons d'interfacer la nouvelle API avec le code existant dans la dernière recette de ce chapitre, larecette 6.9.
Un autre avantage de la nouvelle API ...
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