Active Articles: 2038
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Your First Java Program | ||||||||
This first Java training lesson describes how to create, compile and run your first program using notepad and the windows command prompt. This focuses more on teaching you how to get it to work than on the function of the code, which will be explained in a future lesson. This lesson is also demonstrated in ... learn more
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Advanced form processing using JSP | ||||||||
This article examines the processing of a user registration form using JSP and JavaBeans while implementing the Memento design pattern. It is assumed that the reader is familiar with basic JSP syntax. ... learn more
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Installing and Using the Java Servlet SDK | ||||||||
The first step to using servlets is installing a web server that supports the Java Servlet SDK. This tutorial exlains how. Topics include: Using Servlets, Obtaining the JSWDK, Installing the JSWDK, Running The Servlet, Examples, and Configuring The JSWDK. ... learn more
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Performance Tuning of Java Applications | ||||||||
Ever since the first version of Java Technology hit the streets, performance has been an important issue for Java developers. Java has improved dramatically and continually but, performance tuning is very essential to get the best results, especially when we think of J2EE applications. ... learn more
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Diagnosing Java code: The case for static types | ||||||||
Love or hate it, static type checking can make code more robust. Programming languages are moving away from static type checking, but it is too powerful a debug resource to abandon. Static type checking can be one of the key weapons in a powerful arsenal against introducing and for detecting bugs. This article explains why ... learn more
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EJB exception handling | ||||||||
As J2EE has become the enterprise development platform of choice, more and more J2EE-based applications are going into production. One important component of the J2EE platform is the Enterprise JavaBeans (EJB) API. Together, J2EE and EJB technology offer many advantages, but with these advantages come new challenges. In particular, any problem in an enterprise system ... learn more
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Derby (Java DB) JDBC Driver | ||||||||
This article provides tutorial notes on the JDBC driver for Java DB (Derby) produced by Apache. Topics include loading JDBC driver classes; connecting Derby Network Server; getting JDBC driver information; creating tables and running queries through the Derby JDBC driver. ... learn more
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Understanding and Using JSP Sessions | ||||||||
This tutorial helps you to understand: What is a session? How a JSP server uses cookies to pass session ID? How to pass values in session objects? How to debug JSP session objects? ... learn more
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Creating a Browser Detection JavaBean | ||||||||
A step by step tutorial to create a JavaBean which detects user browser and .NET enabled status. You can use this bean to develop browser friendly pages. Online demo available. ... learn more
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Java full screen image viewer | ||||||||
This article contains a source code of a simple Java program which draws image(from file or http:// URL) at the center of full-screen window. It uses AWT Toolkit to load image (from the file or http URL) and Swing JFrame to display it. ... learn more
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A three-pronged solution for identifying users | ||||||||
The problem of system security starts with discovering the identity of the user on the other end of the communications link. This article discusses three familiar approaches for identifying users, highlights their strengths and weaknesses (alone and in combinations), and provides some examples of each. ... learn more
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Java Threads | ||||||||
A thread, by definition is a light weight process. They are used to increase functionality and performance by performing multiple tasks at the same time, i.e. concurrently... ... learn more
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JSP Out Object | ||||||||
In this JSP tutorial, you will learn about out object and its methods viz. clear, clearBuffer, flush, isAutoFlush, getBufferSize, getRemaining, newLine, print and println. ... learn more
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Generate Certificate Chains for Testing Java Applications | ||||||||
Learn how to create digital-certificate chains to test your software. IBM Software Engineer, Paul H. Abbott, clarifies this seldom-documented process by showing you how to use the freely available OpenSSL toolkit to create a certificate chain of any length. He also describes common certificate attributes and shows you some sample Java code for reading the ... learn more
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.NET and J2EE - A Comparsion Study | ||||||||
This tutorial compares .NET and J2EE, discussing various features of both the technolgoies and summarising when and where these technologies are suitable to use for entriprise application. ... learn more
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Counting Records in MySQL by JSP | ||||||||
This code source displays count of records in MySQL. We are using a SQL statement. You can easily modify the code to use in different languages. But this code can be used for JSP with MySQL. We will use Connector/J driver to connect database. ... learn more
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Java Q & A | ||||||||
Here are a selection of common questions and answers about Java programming. Question categories are grouped by Applets, AWT / Graphics, I/O & Files, Language questions, Data type issues, Keywords, Operators, Networking, Java.util package and more. ... learn more
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Incredibly Easy Way to play Sounds | ||||||||
Do you want to add sound to your JAVA application? It's so incredibly easy! ... learn more
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Double-checked locking and the Singleton pattern | ||||||||
Examine the roots of the double-checked locking idiom, why it was developed, and why it doesn't work. The Java programming language contains several useful programming idioms. It also contains some that further study has shown should not be used. Double-checked locking is one such idiom that should never be used. ... learn more
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How To Quickly Develop Java Programs With Tapestry | ||||||||
As you work with J2EE, you will find that there are a large number of programs which have been designed to make it easier to work with. If you are a programmer, the last thing you should want to concern yourself with is basic low level programming work. ... learn more
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