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var emailAbstract="在本教程中，您將要使用 Java 2 平臺，Micro 版 (Java 2 Platform, Micro Edition, J2ME) -- Sun Microsystem 的 Java 2 平臺最新版本為手持計算機開發一個基本繪圖應用程序。我們將首先說明 J2ME 的背景，研究 J2ME 配置和簡表，然后指導您建立自己的開發環境。 接著，我們將研究 K 虛擬機 GUI 開發，使用連接限制設備配置 (Connected Limited Device Configuration, CLDC) API 開發一個基本繪圖應用程序。我們還將討論移動信息設備簡表 (Mobile Information Device, MIDP) 用戶界面開發，這種開發也要用到 CLDC。最后，我們將簡單討論一下連接設備配置 (Connected Device Configuration, CDC)，但我們不開發一個簡單的應用程序，因為 CDC 主要面向大型設備。";
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var menu2blurb="J2ME 概述";
var menu3blurb="開發 J2ME 應用程序";
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var menu5blurb="J2ME 簡表";
var menu6blurb="設置您的開發環境";
var menu7blurb="CLDC API";
var menu8blurb="使用 KJava GUI 組件的開發";
var menu9blurb="使用 KJava 事件處理的開發";
var menu10blurb="MIDP API";
var menu11blurb="CDC API";
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配置將基本運行時環境定義為一組核心類和一個運行在特定類型設備上的特定 JVM。雖然還可能在將來定義其他的配置，但當前
J2ME
存在兩種配置：
</p><ul><li><b>連接限制設備配置 (CLDC)</b>
特別與 KVM
一起用于內存有限的 16 位或 32 位設備。這是用于開發小型
J2ME 應用程序的配置（虛擬機）。（從開發的角度來看）它的大小限制讓它比
CDC 更有趣、更具挑戰性。CLDC
同時還是用于開發繪圖工具應用程序的配置。 Palm 電腦便是一個運行小應用程序的小型無線設備的示例。我們將在
<a href="j-j2me-4-1.shtml">J2ME 配置</a>一章中深入介紹 CLDC。<br x="7"><br x="7"</li><li><b>連接設備配置 (CDC)</b>
與 C 虛擬機 (CVM) 一起使用，用于要求內存超過 2 兆的 32 位體系結構。互聯網電視機頂盒便是這類設備的一個示例。雖然稍后我們將在 <a href="j-j2me-11-1.shtml">CDC API</a>
一章中簡要介紹 CDC，但它并不在本教程的范圍內。</li></ul>
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