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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
December 2001
Jeff Friesen |
Trash talk, Part 1 One feature that distinguishes Java from other computer languages is its garbage collection abilities. In this article, This article introduces garbage collection and shows how Java's optional support for it affects your programs... |
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
November 2001
Jeff Friesen |
Class and object initialization An exploration of class and object initialization, which introduces the strange concepts of the <clinit> and <init> methods... |
JavaWorld
August 2001
Jeff Friesen |
Object-oriented language basics, Part 5 Every Java class has a superclass. In the absence of an extends keyword, Object is that superclass. Object takes center stage as this article presents its 11 methods... |
JavaWorld
October 2001 |
Java 101 study hall Brush up on Java terms, learn tips and cautions, and enter the first Java 101 reader challenge |
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
September 2000
Bruce Eckel |
Everything is an object, Part 1 This two-part article, excerpted from Chapter 2 in Thinking in Java 2nd. ed., moves you to the point where you can write your first Java program. Bruce Eckel gives an overview of the essentials... |
JavaWorld
October 2001
Jeff Friesen |
Object-oriented language basics, Part 7 This final installment of Java 101's object-oriented programming series explores Java's support for polymorphism and investigates how abstract classes accommodate generalities in class hierarchies. |
JavaWorld
January 2002
Jeff Friesen |
Trash talk, Part 2 This article explores the Reference Objects API, an API that allows your programs to interact with the garbage collector in limited ways... |
JavaWorld
February 2002
Jeff Friesen |
Classes within classes As with fields and methods, Java allows classes to be members of other classes. This article explores Java's support for class nesting... |
JavaWorld
July 2000
Jacob Weintraub |
Learn how to store data in objects In this second installment of Java 101, Jacob Weintraub delves into storing data in Java and the various ways you can use that data. Specifically, he examines how objects store data and how you can pass data to objects in method calls... |
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
October 2000
Bruce Eckel |
Everything is an object, Part 2 Eckel takes you through name visibility and using components from other libraries; the static keyword; and comments and embedded documentation. By the end, you should be able to build your first Java program... |
JavaWorld
January 2001
Wm. Paul Rogers |
Thanks type and gentle class Confusing the concepts of object and class deserves an askance look. Failing to distinguish between type and class, however, typically goes unnoticed. Yet the battle to separate implementation and interface concerns requires type-oriented thinking... |
JavaWorld
November 2000
Geoff Friesen |
Applications, applets, and hybrids This article establishes our bearings and sets sail to the land of applications, applets, and hybrids (an unusual category of Java programs)... |
JavaWorld
October 3, 2003
Dawid Weiss |
Discover new dimensions of scripted Java This article presents an extension to BeanShell that turns scripts into real Java classes that support inheritance, Java reflection, method overriding, and so on. The extension is designed to be fully transparent to the Java application using it. |
JavaWorld
October 2002
Jeff Friesen |
Java's character and assorted string classes support text-processing Text-processing is one of the more frequent activities in which computer programs engage. Java supports that activity via the Character, String, StringBuffer, and StringTokenizer classes. This article explores each class and introduces you to an assortment of those classes' methods. |
JavaWorld
November 2000
M. Jeff Wilson |
Get smart with proxies and RMI RMI enables developers to either get a remote reference to a distributed object, in which all method calls are forwarded to the server object, or get a copy of the remote object and invoke on it locally. You can combine these approaches in a way that is transparent to the client code... |
JavaWorld
June 2002
Jeff Friesen |
Achieve strong performance with threads, Part 2 Developers sometimes create multithreaded programs that produce erroneous values or exhibit other strange behaviors. Odd behavior typically arises when a multithreaded program does not use synchronization to serialize thread access to critical code sections. What does it mean to serialize thread access to critical code sections? This article explains Java's synchronization mechanism, and two problems that arise when developers fail to use that mechanism correctly. |
JavaWorld
September 2002
Jeff Friesen |
Packages organize classes and interfaces Professional Java developers organize frequently used classes and interfaces in class libraries for later reuse. Learn what constitutes a package, how to create a package of classes and interfaces, how to import packaged classes and interfaces into a program, and more. |
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
August 2002
Jeff Friesen |
Achieve strong performance with threads, Part 4 The author completes his exploration of threads by focusing on thread groups, volatility, thread-local variables, timers, and the ThreadDeath class. |
JavaWorld
June 13, 2003
Jeff Friesen |
Datastructures and algorithms, Part 2 This article concludes a two-part series that explores two important computer science topics: datastructures and algorithms. |
JavaWorld
January 2001
Frank Sommers |
Object mobility in the Jini environment This article provides background to the use of mobile objects in Jini and describes the Java class loading and object serialization architectures that make mobile code possible. It offers a tutorial on setting up Jini services so that you can make your code available for download by clients... |
JavaWorld
August 1, 2003
Allen Holub |
Why extends is evil Improve your code by replacing concrete base classes with interfaces |
JavaWorld
April 2002
Jeff Friesen |
Exceptions to the programming rules, Part 2 Learn about Java's exceptions class hierarchy, how to extend those classes, how to throw objects created from exception classes, how to catch thrown objects and handle the exceptions they represent, and how to clean your code... |
JavaWorld
March 2001
Brian Goetz |
Design for performance, Part 3: Remote interfaces 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. This article examines performance issues specific to remote applications... |
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
May 2002
Toby Reyelts |
Integrate Java and C++ with Jace Jace -- a free, open source toolkit -- lets you easily write JNI (Java Native Interface) code. This article analyzes in detail the JNI API's problems and how Jace solves them... |
JavaWorld
September 2002
Tarak Modi |
J2SE 1.4 breathes new life into the CORBA community, Part 2 The Portable Object Adapter (POA), introduced in CORBA 2.2, replaced CORBA's Basic Object Adapter (BOA). An object adapter represents a core piece of the CORBA runtime on the server. This article explore J2SE 1.4's POA support. |
JavaWorld
July 2000
Todd M. Greanier |
Flatten your objects The Java Serialization API is used by many other Java APIs (like RMI and JavaBeans) to persist objects beyond the duration of a running virtual machine. This article tries to demystify the secrets of the Java Serialization API. |
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
June 13, 2003
Camerlengo & Johnson |
Make the Java-Oracle9i connection This article provides Java programmers with techniques for utilizing Oracle9i's new object-oriented features such as inheritance, custom constructors, dynamic dispatch, array descriptors, and mapping strategies from a Java class hierarchy to an Oracle type hierarchy without using traditional object-relational (O/R) mapping strategies. |
JavaWorld
September 5, 2003
Allen Holub |
Why getter and setter methods are evil The getter/setter idiom is a commonplace feature of many Java programs. The use of accessors violates the basic object-oriented principle of encapsulation, so you should avoid using them. This article discusses getter/setter cons and offers an alternative design methodology. |
JavaWorld
February 2003
Laurence Vanhelsuwe |
Unwrap the package statement's potential The package statement is a very powerful Java language feature. Yet most Java programmers, even experienced ones, fail to correctly exploit this power. Intrigued? Read on and see how a simple language feature can have massive repercussions downstream. |
JavaWorld
November 2001
Kurt Jacobs |
Subscribe now for rapid prototyping Developers often find themselves reengineering an API to meet the demand of evolving requirements. By providing a framework for a more flexible system, the Publisher-Subscriber pattern can help you overcome some problems associated with object dependencies... |
JavaWorld
October 2000
Frank Sommers |
Activatable Jini services, Part 2: Patterns of use This article concentrates on the consequences of activation in the Jini context. Sommers exponds on the issue of deactivating objects, then considers the implications of deactivation for well-designed Jini services and how the Jini helper services introduced in the 1.1 beta version of the JSK can contribute... |
JavaWorld
November 2000
Jeremy Blosser |
Explore the Dynamic Proxy API In Java 1.3, Sun introduced the Dynamic Proxy API, which can basically mimic any interface. Add that to an abstract data model, and you can conform any loosely typed data to a strongly typed interface. This article discusses some of the Dynamic Proxy API's many benefits... |
JavaWorld
February 2002
Anders Eliasson |
Implement Design by Contract for Java using dynamic proxies The Design by Contract (DBC) theory can dramatically raise software quality and reusability levels by forcing you to think in terms of contracts. Contracts formally specify the responsibility relationship between a client (class user) and a supplier (class). Additionally, DBC clearly separates specification (what) from implementation (how). This article explains DBC's importance in object-oriented development and describes a DBCProxy framework that achieves DBC transparently in Java using dynamic proxy classes. |
JavaWorld
January 2001
Geoff Friesen |
Non-object-oriented language basics, Part 2 This month we focus on operators and expressions... |
JavaWorld
September 2000
Tom Yager |
Microsoft's C# public beta hits a high note Java's success, and Sun's control of it, has prompted Microsoft to respond with its C# initiative. C# in many ways is a blend of the power of C++ and Java's built-in protections. Java developers will be well served to learn about C#'s pros and cons -- and how the initiative could affect Java's future. |
JavaWorld
September 2000
Frank Sommers |
Activatable Jini services, Part 1: Implement RMI activation Jini services must be long-lived and resilient, and must efficiently manage their computational resources with little user intervention. This article shows how to use RMI activation to manage computational resources and increase the availability of Jini services... |
D-Lib
May/Jun 2007
Saidis & Delis |
Type-consistent Digital Objects This article provides an overview of the Digital Object Prototype framework and highlights its type-conformance capabilities and shows how heterogeneous digital material can be treated in a uniform manner without resorting to custom developments. |
JavaWorld
June 2002
Dirk Laessig |
Score big with JSR 77, the J2EE Management Specification The specification's core is based on the model of managed objects, explained in this article. JSR 77 also defines an Enterprise JavaBeans (EJB) component for easily accessing these managed objects. |
JavaWorld
February 2003
Jeff Friesen |
Regular expressions simplify pattern-matching code To help you write simpler pattern-matching code, Java provides regular expressions. After introducing you to terminology and the java.util.regex package, the author explores many regular expression constructs supported by that package's Pattern class. |
D-Lib
Jan/Feb 2010
Reilly & Tupelo-Schneck |
Digital Object Repository Server: A Component of the Digital Object Architecture This paper introduces the Digital Object Repository Server, the most recent instantiation of the Corporation for National Research Initiatives' repository work. |
Linux Journal
May 2000
James Norton |
Dynamic Class Loading for C++ on Linux A technique that will provide developers with much flexibility in design. |
JavaWorld
February 2001
Geoff Friesen |
Non-object-oriented language basics, Part 3 This exploration of Java's non-object-oriented language entities wraps up with a tour of statements. It provides an in-depth discussion on those source code constructs and demonstrates their proper use through a large example program... |
JavaWorld
January 2002
Bob Byron & Troy Thompson |
Overpower the PreparedStatement Many Java programs' success depends on an optimized method of accessing a JDBC database known as a PreparedStatement. Debugging such statements can prove troublesome because you cannot retrieve a PreparedStatement's command or any of its associated parameters... |
