各是各的。下面是他们本来的定义,因为不知道国内是怎么翻译的,所以不勉强以免出错。jdk是Java Development Kit,是用了写Java Application 的工具。一般下载的jdk是针对JavaSE的,但只要有合适的资源,也可以针对JavaEE。J2SE stands for Java 2 standard edition and is normally for developing desktop applications, forms the core/base API.J2EE stands for Java 2 enterprise edition for applications which run on serv...