J2SE v 1.4.2 Beta Overview

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Java 2 Platform, Standard Edition (J2SE) software is the premier solution for rapidly developing and deploying mission-critical, enterprise applications. Version 1.4.2 Beta builds upon Java technology's cross-platform support and robust security model with new features and functionality, enhanced performance and scalability, and improved reliability and serviceability. Version 1.4.2 Beta advances rich client application development and provides the foundation for standards-based, interoperable Web services that can be built and deployed today! For more details about the virtual machine, see the J2SE 1.4.1 HotSpot Whitepaper What's new in Java 2 Platform, Standard Edition, v 1.4.2 Beta! The following is a summary of what is new in the latest Java release. For more detailed information, see Enhancements and Changes. Windows web based installation Custom install options Supported System Configurations Major Swing Enhancements With this release two new look and feels are introduced: Microsoft Windows XP and GTK . If you are using the system look and feel on the Windows XP platform, Swing components now match the platform. The new GTK look and feel allows you to customize your look and feel to a particular theme by setting up a resource file. Also, this release features many performance improvements to JFileChooser. In certain situations, performance is 300 times faster than previous releases. 64-bit Intel Itanium 2 processors With J2SE 1.4.2 Beta, Itanium 2 IA-64 processors are now fully supported. A new server JIT compilier is available (in addition to the interpreter offered with J2SE 1.4.1) Java Plug-in Some Java Plug-in features worth noting in this release are the following: The Active X Bridge has been reimplemented in this release. A single Java Plug-in Control Panel now handles all version of installed Java Plug-ins. Java Web Start 1.4.2 The following enhancements (RFEs) have been implemented in this release: Every time JAWS is run, it automatically detects all "registered" JREs on the computer. There is now a combined control panel infrastructure used for the Java deployment products, including Java Plug-in and Web Start you can now directly open JNLP URLs from the JAWS Application Manager; these can be bookmarked. Moreover, they may be .html or .jnlp files. Java Web Start now dynamically imports certificates in much the same way as browsers do, making use of https much easier for users. J2SE Platform at a Glance For information on a feature of the J2SE platform, click on the component in the diagram below. 下载本文示例代码


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