j2me wireless toolkit 22 新改进-------英文文献及其译文.doc

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j2me wireless toolkit 22 新改进-------英文文献及其译文,by jonathan knudsen june 2004the award-winning j2me wireless toolkit has become the de facto standard toolkit for developing applications for java 2, micro edit...
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by Jonathan Knudsen
June 2004
The award-winning J2ME Wireless Toolkit has become the de facto standard toolkit for developing applications for Java 2, Micro Edition (J2ME). Since its debut in 2000, the toolkit has evolved to keep pace with the rapidly changing face of mobile Java technology. Don't be misled by the small change in version number from 2.1. The new toolkit supports new optional APIs specified through the Java Community Process (JCP) in four vital areas: 3D graphics, multimedia messaging, Bluetooth networking, and data management. In this article I'll describe these new APIs and show you how they're implemented in the toolkit.
Before I do, take a moment to admire the updated DefaultColorPhone emulator skin. Since version 2.1, this skin has gotten a larger screen (320 x 240, or QVGA) and far more colors (4096 instead of 256).
Mobile 3D Graphics
JSR 184, the Mobile 3D Graphics API for J2ME (M3G), provides three-dimensional graphics functionality in a compact package that's appropriate for devices that support the most widely adopted J2ME


作者:Jonathan Knudsen
2004 年 6 月
屡获殊荣的 J2ME Wireless Toolkit 已经成为 J2ME 开发应用程序的事实标准工具包。自从 2000 年初次亮相以来,该工具包一直在发展以赶上移动 Java 技术外观上快速改变的步伐。不要被从 2.1 版本以来的小改变所误导。新的工具包在四个重要的领域支持 Java Community Process (JCP) 所指定的新的可选 API:3D 图形、多媒体通信、蓝牙连网(Bluetooth networking)和数据管理。本文将描述这些新的 API 并且向您展示如何在工具包中实现他们。
在这之前,让我们赞美一下更新后的 DefaultColorPhone 模拟器皮肤,自从 2.1 版本以来,该皮肤已有了一个更大的屏幕(320 x 240, 或 QVGA)和更多的颜色(4096 色而不是 256 色)。