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JavaWorld
February 2002
David Geary |
Take control with the Proxy design pattern The Proxy design pattern in Java lets you substitute a proxy for an object. In that capacity, proxies prove useful in many situations, ranging from Web services to Swing icons...   |
JavaWorld
October 2001
David Geary |
Amaze your developer friends with design patterns Design patterns are proven techniques for implementing robust, malleable, reusable, and extensible object-oriented software. This article introduces design patterns to Java developers and explores Strategy, Composite, and Decorator -- three common, yet powerful, design patterns in the JDK... |
JavaWorld
July 25, 2003
David Geary |
Make your apps fly Allocating numerous objects can degrade your application's performance. This article shows how to implement the Flyweight design pattern to greatly reduce the number of objects your application creates, which decreases your app's memory footprint and increases performance. |
JavaWorld
March 2003
David Geary |
An inside view of Observer The Observer pattern lets you build extensible software with pluggable objects by allowing communication between loosely coupled objects. The author explores the Observer pattern, how it's used throughout the Java 2 SDK, and how you can implement the pattern in your own code. |
JavaWorld
August 29, 2003
David Geary |
Follow the Chain of Responsibility The Chain of Responsibility (CoR) pattern decouples the sender and receiver of a request by interposing a chain of objects between them. This article discusses the CoR pattern and two implementations of that pattern in the Java APIs -- one from client-side Java and the other from server-side. |
JavaWorld
April 2002
David Geary |
Strategy for success The Strategy design pattern embodies two fundamental tenets of object-oriented design: encapsulate the concept that varies and program to an interface, not an implementation. This article shows how to use the Strategy pattern to implement an extensible design... |
JavaWorld
April 2001
Piet Jonas |
Secure type-safe collections A framework that overcomes the standard Java Collections Framework's main problem: its containers lack the ability to restrict themselves to storing objects of a specific type. The solution uses reflection, wrapper classes, and a collection of static factory methods... |
JavaWorld
July 18, 2003
James Carman |
Get down to business In this article, you will learn how to structure your applications such that modifications to the business object implementation do not require changes to the user interface using a simple framework for accessing your business objects. |
JavaWorld
September 2001
Jeff Friesen |
Object-oriented language basics, Part 6 Learn why Java's standard class library contains empty interfaces (such as Cloneable and Serializable). Also, examine the power of interfaces and learn why they provide more than a workaround for Java's lack of multiple implementation inheritance support... |
JavaWorld
July 7, 2003
Allen Holub |
Solve the date-selection problem once and for all A tutorial about a date-selection widget that displays a calendar and lets you select a date by clicking on it. |
JavaWorld
May 2, 2003
Jeff Friesen |
Datastructures and algorithms, Part 1 After presenting basic datastructure and algorithm concepts, this article focuses on the array datastructure and associated algorithms. The article concludes with the assertion that Java's arrays are objects. |
JavaWorld
December 2002
Alex Blewitt |
Sort it out A common requirement for applications that display lists or tables of data is the ability for users to sort those results. In this article, Alex Blewitt shows how to sort data in Java using the Comparable and Comparator interfaces, and how a generic bean-sorting utility sorts JavaBeans displayed in a graphical user interface. |
JavaWorld
December 2001 |
Letters to the Editor In this month's letters, David Geary expounds further on the Decorator pattern, Humphrey Sheil defends EJB performance, and Jeff Friesen talks more trash... |
JavaWorld
December 2000
Mark Johnson |
C#: A language alternative or just J--?, Part 2 Despite their enormous similarities, Java and C# differ greatly in many language details and also in their basic technical intent. This second article of a two-part series covers C# language constructs and concludes with some speculation on the idea of standardizing C#... |
JavaWorld
June 2000 |
Letters to the Editor (June 23, 2000) Jason Hunter addresses a gripe with calling instanceof when using JDOM; Mark Johnson responds to feedback on his XML series; reader challenges Tony Sintes about whether it truly is impossible to write a swap method... |
JavaWorld
December 2000
Victor Okunev |
Validation with pure Java The importance of employing a good data-validation framework cannot be overestimated. The core Java API has everything you need to solve this problem in the most elegant way. |
JavaWorld
August 2002
Greg Holling |
Put Java in the fast lane This article presents some techniques for locating performance bottlenecks in Java applications and offers suggestions for improving Java performance. Along the way, you'll look at some of the classes in the new java.nio package. |
JavaWorld
April 2001
Geoff Friesen |
Object-oriented language basics, Part 1 An introduction to object-oriented programming and how to declare classes and create objects from those classes... |
JavaWorld
February 2001
Brian Goetz |
Design for performance, Part 2: Reduce object creation Many common Java performance problems stem from class design decisions made early in the design process, long before most developers even start thinking about performance. The author discusses some techniques for reducing temporary object creation... |
JavaWorld
April 2002 |
Letters to the Editor How does PreparedStatement perform? How do you compile Java code dynamically? Does ChainedException preserve the original exception? How do you combine a sorting Decorator with a filtering Decorator? JavaWorld authors answer these questions and more... |
D-Lib
Jul/Aug 2000
Thornton Staples & Ross Wayland |
Virginia Dons FEDORA: A Prototype for a Digital Object Repository After shopping for a digital library system unsuccessfully, in 1999 we created a digital library research and development group and set about creating the system that we need. |
JavaWorld
March 2001
Robert Nielsen |
Working in Java time If you know how to work with dates in Java, it is relatively easy to learn to work with time. This tutorial shows you how to bridge that learning gap... |
JavaWorld
June 2001
Jeff Friesen |
Object-oriented language basics, Part 3 The author explores composition and demonstrates its value in object-oriented programming. Composition and inheritance are design consepts related in a manner similar to both sides of the same coin... |
JavaWorld
March 2002
Jeff Friesen |
Exceptions to the programming rules, Part 1 Learn about exceptions and how to handle them in C, C++, and Java. Learning how to handle exceptions in various languages gives you an appreciation for why exception handling works the way it does in Java... |
JavaWorld
May 2001
Jeff Friesen |
Object-oriented language basics, Part 2 In this article, you'll gain an understanding about fields, parameters, and local variables and learn to declare and access fields and methods... |
JavaWorld
September 2001
Ashok Mathew & Mark Roulo |
Accelerate your RMI programming Beginning with JDK 1.1, serialization and Remote Method Invocation (RMI) were added to the Java platform. RMI usually runs slower than equivalent CORBA or remote procedure call (RPC) solutions. Fortunately, RMI was designed so that you could apply hand optimizations... |
JavaWorld
December 2000
Jean-Pierre Dube |
Printing in Java, Part 2 How to print your first page, and how to use the more advanced classes of the Java Print API... |
