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Java Tip 97: Add drag and drop to your JTrees

Improve JTree usability with drag and drop Implementing drag and drop lets users manipulate data with simple mouse movements and can mean the difference between an efficient or cumbersome application. Unfortunately, one of the more useful and powerful GUI components,…

Debug with jdb

How do you use this crazy thing? Q: How do you use jdb (included in the JDK 1.2 package) effectively to debug Java programs? I’ve tried many times, but I am successful only in loading a class file to jdb;…

Letters to the Editor (June 23, 2000)

JDOM Introduction ‘Easy Java/XML Integration with JDOM, Part 1’ Jason Hunter and Brett McLaughlin LETTER_HEAD: An alternative to calling instanceof Jason, From what I read in your article, JDOM is very nice. However, I have a small gripe with this:…

Big Blue, Sun in Java dispute

IBM changes its tune over licensing Sun’s J2EE platform, a move that’s news to Sun June 23, 2000 — In a bid to calm fears that it might not adhere to rival Sun Microsystems’ branded Java platform, IBM this week…

Solid JRun serves up Java on a budget

Allaire’s JRun 3.0 Java-based application server features up-to-date server-side Java features, easy installation, and low cost; but how does it measure up against the competition? Although the Java jury is still out on the usefulness of client-side implementations, server-side Java…

Make room for JavaSpaces, Part 5

Make room for JavaSpaces, Part 5

Make your compute server robust and scalable with Jini and JavaSpaces In “Make Room for JavaSpaces, Part 2: Build a compute server with JavaSpaces” you saw how to build a simple general-purpose compute server using the JavaSpaces technology. Recall that…

News and New Product Briefs (June 23, 2000)

INDEXHEAD: Espial launches portal for Java Internet appliance developers Espial has introduced Devicetop.com, an Internet portal that offers third-party Java developers an opportunity to learn development skills for smart devices. The portal targets the growing Internet appliance market, which includes…

Personalize your application’s icon

Let your user customize the frame Q: I’ve created a frame that extends from the Frame class. I’d like to change the top-left window icon to a user-defined icon. Is it possible? A: This question comes up often. Luckily, there…

Java 2 poised to take over the desktop

J2SE 1.3 shows its maturity with performance gains, enhanced security, and strong Web features SIDEBAR_HEAD: The various flavors of Java 2 Anything good always seems to come in various flavors, and Java is no exception. But with three different editions…