Java Tip 142: Pushing JButtonGroup
Swing's ButtonGroup class allows radio button grouping
to ensure single selection; however, the implementation raises many
question marks. You cannot retrieve a reference to the currently
selected button in the group, and the class lets you select or
deselect any button accessible through a reference, not
just those belonging to the group. This tip describes how
JButtonGroup subclasses ButtonGroup to
offer a more solid implementation, while providing convenience
methods that make JButtonGroup much simpler to use.
Daniel Tofan,
September 2003
Implement a J2EE-aware application console in Swing
Learn the fundamentals of Swing while creating a command console to
control complex enterprise applications. A console provides a
window into a system's operation and allows operators to configure,
monitor, and control the system in real time. This article shows
how to construct a generic console from Swing components that uses
the Java Messaging Service (JMS) to interact with one or more
application subsystems. Java 2 Platform, Enterprise Edition (J2EE)
1.3-compliant application components implement a JMS interface
automatically, which makes integration with this console especially
easy.
John Chamberlain,
November 2001
Create a scrollable virtual desktop in Swing
The JScrollableDesktopPane class builds upon the Swing
component classes JDesktopPane,
JScrollPane, JToolBar, and
JMenu to provide a virtual desktop environment replete
with dynamic scroll bars, dynamic menus, and dynamic button
shortcuts. JScrollableDesktopPane interfaces
seamlessly with current JDesktopPane implementations,
allowing you to easily enhance existing Java Multiple Document
Interface (MDI) applications.
Tom Tessier,
November 2001
Java Tip 119: Don't know much about file history?
Many file processing applications have a history mechanism that
tracks the last processed files. Typically these filenames are
appended to the bottom of a File menu in the order you have
processed them. This tip provides a class that encapsulates all the
code you need to add such a file history mechanism to your own
application. Discover the key "hot spots" to link the mechanism
into the JFrame used to build the heart of your application. The
code is based on Swing, as provided with JDK 1.2 or JDK 1.3.
Klaus Berg,
November 2001
Two if by sea
October 19, 2001
Tony Sintes,
October 2001
Don't be late for that important date
October 5, 2001
Tony Sintes,
October 2001
Java Tip 116: Set your table options -- at runtime!
The JTable class offers rich functionality for
grid-like data display. This Java tip addresses common display
issues related to dynamically changing such things as scroll bars,
column width, and row height.
Sonal Goyal With John D. Mitchell,
September 2001
Conquer Swing deficiencies in MDI development
You can easily overcome some notable Swing deficiencies when
creating Multiple Document Interface (MDI) applications. In
particular, this article shows you how to simply add scrolling and
a standard windows menu to your MDI apps. (1,300
words)
Gerald Nunn,
May 2001
Embed Java code into your native apps
Embedding Java code into a Unix application developed in C or C++
can create problems related to GUIs or threads synchronization. In
this article, Thierry Manfé implements a solution that
relies on a good understanding of the Unix APIs and robust software
architecture. (2,400 words)
Thierry Manfé,
May 2001
Does Sun understand GUI design?
Sun has done a great job with Swing, but Java has failed to
dominate the client side like it has dominated the server side.
This could be related to the fact that Sun's roots are in Unix.
(650 words)
Anil Hemrajani,
May 2001
The magic of Merlin
This technical overview will give you insight into the various new
features and APIs of the upcoming JDK 1.4 -- code-named
Merlin. The beta version is expected to be released this
month. (3,000 words)
Vinay Aggarwal,
March 2001
Java Tip 109: Display images using JEditorPane
To display HTML in a JEditorPane, you would normally
specify a URL that sets the document base of the
HTMLDocument. However, if the HTML text is not stored
in a file locally or on the Web, you cannot set the
HTMLDocument document base. That becomes a problem
when the <IMG> tag uses a relative path to specify the image
location, but it can be overcome by modifying
JEditorPane and its associated classes. (2,000
words)
Rob Kenworthy,
March 2001
Browse user interfaces for Jini services
The ServiceUI specification developed by the Jini.org community
defines a suggested procedure for attaching user interfaces to Jini
services. In this article, Jeffrey Peden -- a new contributor to
the Jiniology column -- introduces you to a simple ServiceUI-based
example service. Then he shows you how to build an application for
browsing and launching user interfaces for Jini services.
Jeffrey Peden,
March 2001
Speed up file searching in JFileChooser
Traditionally, users choose files by scrolling the file chooser's
list with their mice. You can speed that process by enhancing
JFileChooser with a type-ahead method: the user just types the
first few characters of a filename to select the desired file. This
article shows you how to do just that. Plus, you'll learn how to
register listeners on a compound component's descendants to extend
JFileChooser's functionality. (2,000 words)
Slav Boleslawski,
February 2001
Become a programming Picasso with JHotDraw
Design patterns and frameworks have a mutually beneficial
relationship. A well-known example of this is JHotDraw, a highly
customizable GUI framework that simplifies developing drawing
applications. This article explains the JHotDraw framework and
general framework principles in terms of several important design
patterns. You'll develop a class diagram editor that demonstrates
JHotDraw's usage and capabilities. (4,000 words)
Wolfram Kaiser,
February 2001
Some reader favorites:
EJB fundamentals and session beans
Create a scrollable virtual desktop in Swing
Wizard API updated!
Tim Boudreau has released a new version of the Swing Wizard library (version 0.997) that fixes the WizardException bug reported in JavaWorld's recent Open Source Java Project profile. The article's examples have been reworked to test out the new, improved WizardException. Thanks, Tim, for this helpful fix!
Open Source Java Projects: The Wizard API
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