JAVA技术的新手

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在developerworks中的java技术区域包括数以百计的文章,指南和尖端技术,它们被用来帮助开发人员充分利用Java语言技术和相关应用,但是当开发人员设法找一个空间来学习java技术时,大量的资源筛选是不可避免的。developerworks提供的这个页面介绍了java技术整体的基本概要(特别是当它属于某个应用程序和电子商务的时候)。这种资源以相关的developerworks文章,讲解和要诀的形式提供起点,IBM学习服务教育,Webcasts,工作间和需要进一步调查的IBM产品。 1 什么是Java 技术? Java技术(版本2)是由Sun公司开发的一种面向对象的编程技术语言和平台。Java 技术基于一台Java虚拟机(JVM)——一个在语言、系统软件和硬件之间翻译者。所有程序设计语言的执行必须通过JVM,这样就使Java程序可以运行在有JVM的版本的任何系统上。Java程序设计语言是不平常的,因为Java程序包括编译(翻译成叫做Java字节码的中间语言)和解释(字节码由JVM解析和运行)。程序运行时解释每进行一次时,编译一次。编译字节码是一个为JVM优化机器码的形式;解释程序是一个JVM的执行。 Java 平台,有三个版本,包括JVM和Java应用程序编程接口(API),用已经开发好的软件组件的大容器来熟练发展和开发应用和应用软件,其中包括健壮,安全和相互可操作的企业应用软件。JAVA API被编入相关类和接口类库和接口;

外文原文(复印件) New to Java technology The developerWorks Java technology zone contains hundreds of articles, tutorials, and tips to help a developer make the most of the Java-language technology and related applications, but sifting through the volumes of resources can be overwhelming for developers trying to find a place to start learning about Java technology. developerWorks offers this page to provide an overview of Java technology basics within the overall context of the language (especially as it pertains to application development and e-business). This resource delivers starting points in the form of relevant developerWorks articles, tutorials and tips, IBM learning services education, Webcasts, workshops, and IBM products for further investigation. 1 What is java technology ? Java technology (version 2) is both an object-oriented programming language and a platform developed by Sun Microsystems. Java technology is based on the concept of a single Java virtual machine (JVM) -- a translator between the language and the underlying software and hardware. All implementations of the programming language must emulate the JVM, thus enabling JAVA programs to run on any system that has a version of the JVM.