這一篇是MIDP2.0第一章的最後一點內容，馬上就要進入關鍵的第2章了。。。
使用的包的一覽，倒是和我參與的程序關系不大，了解了解而已,翻譯麼也就算了，畢竟很容易得說
(視聽存網安，核心和周期----Yama關於7大類別包的闡述視當然是UI,聽就是聲音，存當然是保存，網就是網絡，安就是安全這裡是指公鑰。核心core,周期lifecycle)
User Interface Package（用戶界面）
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（應用程序生命周期）
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(網絡)
Javax.microedition.io
MID Profile includes networking support based on the Generic Connection framework from the CLDC.
Public Key Package(公鑰)
Javax.microedition.pki
Certificates are used to authenticate information for secure Connections.
Sound and Tone Media(聲音)
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.
