jdk数组-阿里云

【Java新特性学习四】JDK8: 库函数新特性之Optional，Streams，Date/Time API(JSR 310)，Base64，并行数组

本篇Blog继续学习和实践Java8中的新特性，主要分为两大部分：语言新特性和库函数新特性，重点落在工作中经常会用到的几个重大特性：语言新特性：Lambda表达式，方法引用，接口的默认方法和静态方法，重复注解库函数新特性：Optional，Streams&#...

从一个 JDK6 BUG 看 JAVA 数组创建

前几天在调试一段程序, 奇怪的发现: 程序性能和缓存大小是负相关的——缓存开越大，程序越慢，最快和最慢之间差 2 个数量级。开 jprofiler 查了下，发现了 JDK6 里有这样一段代码 (版本 build 1.6.0_14-b08)：红线里的部分只能用笔误来形容 ——Arrays.copyO...

JDK的选型、安装与配置

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更新时间 2024-03-02 01:30:11

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