jdk11与jdk9

JDK11和JDK9是Java Development Kit (JDK)的不同版本。JDK11是较新的版本，而JDK9是稍旧的版本。它们之间有一些区别和更新。在JDK11中，一些主要的特性包括模块化系统、Jshell、多版本兼容jar包、接口中定义私有方法等。而在JDK9中也有一些特性，例如标准java异步HTTP客户端、更简化的编译运行程序、Epsilon垃圾收集器等。此外，JDK11还包含了一些新的API和改进，如动态的Class-File Constants类文件、局部变量类型推断、增强的Stream API等。关于JDK11和JDK9的具体差异和特性，您可以根据需要选择合适的版本进行安装和使用。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
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