这一篇是MIDP2.0第一章的最后一点内容，马上就要进入关键的第2章了。。。

使用的包的一览，倒是和我参与的程序关系不大，了解了解而已,翻译么也就算了，毕竟很容易得说

(视听存网安，核心和周期----Yama关于7大类别包的阐述

视当然是UI,听就是声音，存当然是保存，网就是网络，安就是安全这里是指公钥。

核心core,周期lifecycle

)

• Package一览

User Interface Package（用户界面）

javax.microedition.lcdui	The UI API provides a set of features for implementation of user interfaces for MIDP applications.
javax.microedition.lcdui.game	The Game API package provides a series of classes that enable the development of richgaming content for wireless devices.

Application Lifecycle Package（应用程序生命周期）

javax.microedition.midlet

The MIDlet package defines Mobile Information device Profile applications and the interactions between the application and the environment in which the application runs

Persistence Package（持久性保存）

javax.microedition.rms

The Mobile Information Device Profile provides a mechanism for MIDlets to persistently store data and later retrieve it.

Networking Package(网络)

javax.microedition.io

MID Profile includes networking support based on the Generic Connection framework from the CLDC.

Public Key Package(公钥)

javax.microedition.pki

Certificates are used to authenticate information for secure Connections.

Sound and Tone Media(声音)

javax.microedition.media	The MIDP 2.0 Media API is a directly compatible building block of the Mobile Media API (JSR-135) specification.
javax.microedition.media.control	This package defines the specific Control types that can be used with a Player

Core Packages（核心）

java.lang	MID Profile Language Classes included from Java 2 Standard Edition.
java.util	MID Profile Utility Classes included from Java 2 Standard Edition.