牛肉和香菇能一起吃吗:帮忙翻译(有重赏!)

来源:百度文库 编辑:高考问答 时间:2024/05/06 00:58:09
Java语言的前身是Oak项目,它原本是专为机顶盒这种嵌入式系统设计的,但令人惊奇的是Java并没有顺利地进入嵌入式领域,而是随着Internet的发展占领了PC端和Server端。经过5年的发展,现在Java终于又回到了嵌入式领域。为了和PC端、Server端的Java相区别,用于嵌入式系统的Java被称为Java 2 Micro Edition,简称J2ME(JAVA 2 MICRO EDITION),也就是Java2微型版,是一种以产品为目标的,高度优化的Java运行环境,包括寻呼机、移动电话、可视电话、数字机顶盒和汽车导航系统。它最初的目标是16位或32位处理器,16MHz时钟频率,512K或更少内存的设备。相对其他智能客户端平台而言,J2ME有一个独特的优点:它主要是为手机设计的。J2ME应用可运行在不同投资商的不同设备上,这在高度竞争性的手机设备行业中是特别重要的,因为存在大量的不同设备。所有主要的智能手机制造商都承认支持J2ME平台。代码的可携带性对于那些想要维持单一代码库和消费者的数目不断扩大的开发者来说是至关重要的。目前无线设备上的大多数应用程序都是内置的且功能固定,没有制造商的参与很难进行软件升级和安装新软件,但J2ME的发展和Java手机的出现使得第三方可以开发各种手机应用程序。

Java language is the predecessor of Oak project, it was originally designed to set such an embedded system design, but it was surprising that an embedded Java did not successfully entered the field, but with the development of Internet - and PC Server端 occupied. After five years of development, now finally returned to the plug-in Java field. And the PC-to, the Java Server端 distinguish, for an embedded system, known as Java 2 Micro Edition Java, called J2ME (Java 2 Micro Edition), that is Java2 Micro Edition, is a product targeted to, Highly optimized Java operating environment, including pagers, cellular phones, video phones, car navigation systems and digital set. Its initial goal was 16 or 32 processors, 16MHz clock frequency, 512K or less access equipment. Compared to other smart-client platform, J2ME has a unique advantage : it is designed for mobile phones. J2ME applications may operate different equipment in different investors, which in a highly competitive mobile phone equipment industry is particularly important because of the large number of different equipment. All major mobile phone manufacturers have recognized the wisdom of supporting J2ME platform. Code portability of a single code base for those who wish to maintain and develop the growing number of consumers who are essential. Most current wireless equipment and applications are built-in functions fixed, no manufacturers in a difficult software upgrades and the installation of new software, but J2ME development and the emergence of Java enabled mobile phone handsets third parties can develop applications.