Java Theory and Practice Going Wild With Generics 2: related news

Java Theory and Practice: Going Wild With Generics 2

IconWildcards can be very confusing when it comes to generics in the Java language, and one of the most common mistakes is to fail to use one of the two forms of bounded wildcards ("? super T" and "? extends T") when needed. You've made this mistake? Don't feel bad, even the experts have, and this month Brian Goetz shows you how to avoid it.

Java Theory and Practice: Going Wild With Generics 2

Wildcards can be very confusing when it comes to generics in the Java language, and one of the most common mistakes is to fail to use one of the two forms of bounded wildcards ("? super T" and "? extends T") when needed.

Does an Open Java Really Matter?

snydeq writes "Fatal Exception's Neil McAllister questions the relevance of the recent opening of Java given the wealth of options open source developers enjoy today. Sure, as the first full-blooded Java implementation available under a 100 percent Free Software license, RedHat's IcedTea pushes aside open source objections to developing in Java. Yet, McAllister asks, if Java really were released today, brand-new, would it be a tool you'd choose? 'The problem, as I see it, is twofold,' he writes. 'First, as the Java platform has matured, it has become incredibly complex. Today it's possible to do anything with Java, but no one developer can do everything — there simply aren't enough hours in the day to learn it all. Second, and most important, even as Java has stretched outward to embrace more concepts and technologies — adding APIs an

IcedTea's OpenJDK Passes Java Test Compatibility Kit

emyar writes "At JavaOne in May, 2006, Sun Microsystems announced they were going to release Java as free software under the terms of the GPL. The size of the task (6.5 million lines of code) was only eclipsed by the size of the opportunity for Java as a free and open technology. [...] This week the IcedTea Project reached an important milestone — The latest OpenJDK binary included in Fedora 9 (x86 and x86_64) passes the rigorous Java Test Compatibility Kit (TCK). This means that it provides all the required Java APIs and behaves like any other Java SE 6 implementation — in keeping with the portability goal of the Java platform."

Java is finally Free and Open

This week the IcedTea Project reached an important milestone - The latest OpenJDK binary included in Fedora 9 (x86 and x86_64) passes the rigorous Java Test Compatibility Kit (TCK). This means that it provides all the required Java APIs and behaves like any other Java SE 6 implementation - in keeping with the portability goal of the Java platform. As of writing, Fedora 9 is the only operating system to include a free and open Java SE 6 implementation that has passed the Java TCK. All of the code that makes this possible has been made available to the IcedTea project so everyone can benefit from the work.

Are Java Developers, Architects, and Technical Managers Becoming Java Dinosaurs?

With the rapid evolution that Java and open source frameworks have made since the release of J2EE, enterprise Java IT seems to be producing too many Java dinosaurs. Developers, technical managers, or architects who no longer pursue their technical skills don't understand the evolution of JEE in comparison to J2EE, persistence frameworks, IOC frameworks, Web frameworks, or Web 2.0 and its effects on enterprise Java. Yet decisions are made based on out-of-date J2EE experience.

Discussing Java code quality and Enerjy Software - Vendor Webcast

This Videocast discusses methods for monitoring and improving the quality of Java code. Discover how attitudes have evolved towards "quality driven" development and explore how to measure the quality of open-source Java projects. Learn how metrics and combinations of metrics can serve as predictors for isolating Java code bugs. Explore how an Eclipse plug-in can be used to effectively compare Java code with open source projects. Gain insight into various Java code quality initiatives which are being designed to enhance the quality of software projects.

The New and Improved Next-Gen Java Applet Plug-in Technology

Next-Generation Java Plug-in Technology (available in the Java SE 6 Update 10, has breathed new life into Java applet technology for delivering programs over the web. At least that is what Dana Nourie and Kenneth Russell contend in their article entitled "Next Generation in Applet Java Plug-in Technology." Nourie and Russell write that the next-generation Java Plug-in offers a completely redesigned architecture that provides powerful new capabilities to applets in the web browser, while improving the overall reliability and functionality of applets in a backward-compatible manner. Among the benefits one might expect from next-gen applet technology are:

Troubleshooting tool for Java offered

Sun on Tuesday announced availability of Java VisualVM, an open-source GUI tool for troubleshooting and profiling Java applications. Users can view detailed information about Java applications while they are running on a JVM (Java Virtual Machine). Billed as an all-in-one troubleshooting tool, VisualVM integrates several command line JDK (Java Development Kit) tools and profiling capabilities. It enhances monitoring and performance analysis, according to Sun.

Press Release: Sun Java Wireless Client Available on Latest HP iPAQ Smartphone

SANTA CLARA , Calif.--(BUSINESS WIRE)--Sun Microsystems, Inc. (NASDAQ:JAVA) today announced that Java(TM) Platform Micro Edition (Java ME) is integrated in the new HP iPAQ 900 series Business Messenger smartphone. Based on the Sun Java(TM) Wireless Client software Sun's Java ME implementation for wireless handsets and enhanced with custom features designed specifically for HP, the new HP 3G smartphone delivers a flexible wireless e-mail experience1, including convenient voice2 control and hands-free operation.

Dreamtech Press Book Release: Dreamtech strengthens its presence with ?€?Java EE 5 Black Book?€?

Summary: Dreamtech Press, a leading publisher forays into Java EE 5 Education, by introducing new “Java Server Programming Java EE 5 (J2EE 1.5) Black Book�- a book for Java EE 5 education. The book is launched with a combined vision to increase the productivity of Java Professionals by implementing effective learning theories. Book Details: ISBN – 978-81-7722-835-9; Price – 599/- w/CD.

Creating JavaFX Script Objects and Using Them in Java Programs

Michael Heinrichs has written a Sun Developer Network article on Using JavaFX Script Objects in Java Programs. This process is a fairly easy one, he maintains, because JavaFX Script was designed to enable the use of Java objects and because the necessary instruments are built right into the language. He demonstrates possible ways to create JavaFX objects and to use them in Java code. According to Heinrichs, the first issue to address in designing a system that includes components written in JavaFX Script is the decision about which technology to use for the startup. There is, he writes, no correct answer; that depends on the context. He recommends using a factory as a means of creating JavaFX objects from Java code without relying on calling the constructor, which is a practice that is typically discouraged.

Java Performance Tuning: A Conversation With Java Champion Kirk Pepperdine

This series of interviews spotlights Java Champions, individuals who have received special recognition from Java developers across industry, academia, Java User Groups (JUGs), and the larger community.

Evaluate XPaths from the Java platform: Select parts of an XML document from Java code

No data format is harder to search than XML, but with the fairly recent introduction of the XQuery API, XML searches are now flexible and easy to perform. For Javaâ„¢ programmers who work with XML documents using SAX, DOM, JDOM, JAXP, and more, the XQuery API for Java is a welcome addition to the programmer's toolkit. Now the power of XQuery is available to Java programmers without resorting to system calls or unwieldy APIs, all in a Sun-standardized package.

MarkMail Enables Developers to Tap Into Java Brain Trust by Incorporating java.net Mail Archives

Mark Logic® Corporation, provider of the industry's leading XML content platform, today announced that MarkMail, a free service for searching mailing list archives available at http://markmail.org/, has added group messages from the highly influential java.net community. In cooperation with CollabNet, the leading provider of solutions for distributed software development and the system that powers http://java.net, more than 975,000 emails were loaded into the MarkMail system. The java.net community members now have the ability to seamlessly query across the structured and unstructured parts of email, including attachments, and unlock the tremendous value embedded in these messages.

Java Technology Enables Wireless E-mail Service For HP iPAQ 900 Series Business Messenger

Sun Microsystems, Inc. announced that Java Platform Micro Edition (Java ME) is integrated in the new HP iPAQ 900 series Business Messenger smartphone. Based on the Sun Java Wireless Client software – Sun's Java ME implementation for wireless handsets – and enhanced with custom features designed specifically for HP, the new HP 3G smartphone delivers a flexible wireless e-mail experience1, including convenient voice2 control and hands-free operation.

Sun Java CAPS

The Sun Java Composite Application Platform Suite (CAPS) Release 6, aligns with Sun Java System Application Server 9.1 UR2 and NetBeans 6.1, providing a pluggable architecture based on Java Business Integration (JBI) and associated tooling. Aside from many of the new features, it is still capable of offering backward compatibility for 5.0.5 and 5.1.x projects. Some of the newer features of the Java CAPS are as follows:

Sun Java Wireless Client Available on Latest HP iPAQ Smartphone

SANTA CLARA , Calif. - Sun Microsystems, Inc. (NASDAQ:JAVA) today announced that Java(TM) Platform Micro Edition (Java ME) is integrated in the new HP iPAQ 900 series Business Messenger smartphone. Based on the Sun Java(TM) Wireless Client software – Sun's Jav

Does Open Java Matter?

IconNow that Java has a fully open sourced implementation in RedHat's IcedTea, Neil McAllister questions whether an open Java even matters: "Even as Java has stretched outward to embrace more concepts and technologies - adding APIs and language features as it goes - newer, more lightweight tools have appeared that do most of what Java aims to do. And they often do it better."

How to write and use a JavaBean My frst java bean

This java source code is an ideal start up working with Java Beans. You will find a pure java code that we will compile it to a java bean and a JSP source code calls this JavaBean.

How Can Java Developers Stay Relevant?

With the rapid evolution that Java and open source frameworks have made since the release of J2EE, enterprise Java IT seems to be producing too many Java dinosaurs. Developers, technical managers, or architects who no longer pursue their technical skills don't understand the evolution of JEE in comparison to J2EE, persistence frameworks, IOC frameworks, Web frameworks, or Web 2.0 and its effects on enterprise Java. Yet decisions are made based on out-of-date J2EE experience.

Sun delivers Java to Windows Mobile phone from HP

Sun is the company that created Java, so obviously getting wireless Java from Sun would mean that it would be better than getting it from some small company that has licensed it from Sun. However nowadays wireless Java is not particularly important... apart from rare situations, where no native applications are available for Windows Mobile, like it is in case of Google Mail (GMail) that is available as mobile web application or as Java midlet, but not as native Windows Mobile application.

Spring Gets Expanded Java Annotation Support

When writing a complex Java program filled with many interlocking objects, any automation of routine tasks can be a big help. So Java developers using the Java Spring framework should welcome recent additional support for annotations, which could take care of many mundane construction and configuration duties. Spring is an open source collection of components for developing Java Enterprise Edition-based applications.

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