What's new in Java 2 Platform, Standard Edition, v 1.4.2! 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. For more information, see the Swing 1.4.2 release notes.
Bug Fixes As the second maintenance release to J2SE 1.4.0, over 2400 bug fixes were integrated in J2SE 1.4.2. Additionally, changes and improvements have been made in the following areas: Installer
Virtual Machine
Networking
I/O and New I/O
Internationalization
JAXP
Security
CORBA, Java IDL, and Java RMI-IIOP
Java Naming and Directory InterfaceTM API
Java Sound Technology
Java 2DTM Technology
Input Methods
AWT
Swing (Including new XP look and feel)
Startup Time Improvements
Applets
Java Plug-in Technology
Java Web Start 1.4.2
Java Platform Debugger Architecture
Java Virtual Machine Profiler Interface
Java Compiler (javac)
Javadoc Tool
64-bit Intel Itanium 2 processors With J2SE 1.4.2, 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 booked. 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.
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. For more information, see the Swing 1.4.2 release notes.
Bug Fixes As the second maintenance release to J2SE 1.4.0, over 2400 bug fixes were integrated in J2SE 1.4.2. Additionally, changes and improvements have been made in the following areas: Installer
Virtual Machine
Networking
I/O and New I/O
Internationalization
JAXP
Security
CORBA, Java IDL, and Java RMI-IIOP
Java Naming and Directory InterfaceTM API
Java Sound Technology
Java 2DTM Technology
Input Methods
AWT
Swing (Including new XP look and feel)
Startup Time Improvements
Applets
Java Plug-in Technology
Java Web Start 1.4.2
Java Platform Debugger Architecture
Java Virtual Machine Profiler Interface
Java Compiler (javac)
Javadoc Tool
64-bit Intel Itanium 2 processors With J2SE 1.4.2, 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 booked. 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.
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Bug Fixes As the first maintenance release to J2SE 1.4.0, over 2000 bug fixes were integrated in J2SE 1.4.1. Additionally, changes and improvements have been made in the following areas: Compiler and Class File Format Changes.
Javadoc
AWT
SWING
Java Naming and Directory Interface API
Networking
RMI
Internationalization
Security
Kerberos Service and DNS Name Lookup
Developer release for 64-bit Intel Itanium processors The Windows/Linux release is intended only for developers as they begin to work with the IA-64 architecture. It is offered without support and is not for use in production systems or for redistribution with applications. Applications run only in interpreted mode. Java Plug-in and Java Web Start products are not available in the IA-64 release for Linux and Windows. Note that the 32 bit versions of J2SE 1.4.1 will not work on Itanium machines.
Java Virtual Machine Two new garbage collectors have been added to improve application performance: Concurrent Mark and Sweep Collector. This collector executes mostly concurrently with the application. It trades the utilization of processing power that would otherwise be available to the application for shorter garbage collection pause times. Parallel Garbage Collector. This collector enables garbage collection to occur on multiple threads for better performance on multiprocessor machines.
Java Plug-in Several significant enhancements have been made. An update panel has been added for downloading security patches, in a compact format, as they become available. The Control Panel has been updated with new documentation in the Java Plug-in Developer Guide. Applet startup performance has been improved. Many other improvements have also been made.
Java Web Start 1.2 Version 1.4.1 of the Java 2 SDK and Java Runtime Environment include the new Java Web Start 1.2 product. Java Web Start technology enables deployment of full-featured applications over the net. Version 1.2 offers several significant enhancements requested by the growing number of Java Web Start users.
To use Java Web Start on previous Java releases, download the JRE package for the Java 2 Platform, Standard Edition, version 1.4.1.
http://www-900.ibm.com/developerWorks/cn/java/j-merlin/index.shtml
一般在书的最开头会说到的
比如JDK1。4 Tutorial
我觉得范围实在太大，内容太多了大家给我指几个方向吧 组长要求的是能够有比较深入的理解和总结 还有阿 我公司是做类似于ERP之类软件的
但我觉得你应该换个角度来想想公司为什么给你这么个任务。
搞JAVA开发的公司要不知道这样的问题，真有点不可思议。
我觉得老板花时间让你作这种事，就该是作为给你的一个提高的机会，系统地认识自己在开发中将要使用的技术。
所以还是找点详细的资料来看看吧，对自己对公司都有好处。