移动设备的应用平台—j2me简介------文献翻译.doc

约13页DOC格式手机打开展开

移动设备的应用平台—j2me简介------文献翻译,1.什么是j2me:j2me(java 2 micro edition)是java 2的一个组成部分,它与j2se、j2ee并称。根据sun的定义:j2me是一种高度优化的java运行环境,主要针对消费类电子设备的,例如蜂窝电话和可视电话、数字机顶盒、汽车导航系统等等。j2me技术在1999年的javaone deve...
编号:10-272128大小:81.00K
分类: 论文>外文翻译

内容介绍

此文档由会员 wanli1988go 发布

1.什么是J2ME:
J2ME(Java 2 Micro Edition)是Java 2的一个组成部分,它与J2SE、J2EE并称。根据Sun的定义:J2ME是一种高度优化的Java运行环境,主要针对消费类电子设备的,例如蜂窝电话和可视电话、数字机顶盒、汽车导航系统等等。J2ME技术在1999年的JavaOne Developer Conference大会上正式推出,它将Java语言的与平台无关的特性移植到小型电子设备上,允许移动无线设备之间共享应用程序。
J2ME在设计其规格的时候,遵循着对于各种不同的装置而造出一个单一的开发系统是没有意义的事」这个基本原则。于是 J2ME 先将所有的嵌入式装置大体上区分为两种 :一种是运算功能有限、电力供应也有限的嵌入式装置(比方说PDA 、手机);另外一种则是运算能力相对较佳、并请在电力供应上相对比较充足的嵌入式装置 (比方说冷气机、电冰箱、电视机上盒 (set-top box))。因为这两种型态的嵌入式装置,所以Java 引入了一个叫做Configuration 的概念,然后把上述运算功能有限、电力有限的嵌入式装置定义Connected Limited Device Configuration(CLDC)规格之中;而另

1. what is the J2ME
J2ME (Java 2 Micro Edition) is a Java 2 as an integral part of it with J2SE, J2EE said. According to Sun's definition: J2ME is a highly optimized Java runtime environment, mainly for consumer electronics devices such as cellular phones and video phones, digital set-top boxes, car navigation systems and so on. J2ME technology in 1999, the JavaOne Developer Conference on the formal launch of the General Assembly, which will of the Java language and platform-independent features into a small electronic device that allows mobile wireless devices sharing between applications.
J2ME in its design specifications, to follow a "variety of devices to create a single development system is meaningless" the basic principles. So first of all J2ME embedded devices generally divided into two types: One is the limited computing, power supply is also limited embedded devices (for example, PDA, cell phone); another kind of computing power is relatively better, And in the power supply is relatively sufficient for embedded devices (for example, air conditioners, refrigerators, TV set-top boxes (set-top box)). Because these two types of embedded devices, Java is why the introduction of a concept called Configuratio