Java Exception overview

Definition:  An exception is an event, which occurs during the execution of a program, that disrupts the normal flow of the program's instructions.

When an error occurs within a method, the method creates an object and hands it off to the runtime system. The object, called an exception object, contains information about the error, including its type and the state of the program when the error occurred. Creating an exception object and handing it to the runtime system is called throwing an exception.

Abstract: Validating User Input with JavaScript

On the PHP client side, your best tool for validating data is JavaScript. JavaScript is different than PHP, because it's designed to execute in the user's browser instead of on the server. Because it executes in the client's computer, JavaScript is not allowed to access anything that could be a security risk, such as the local filesystem or network resources. JavaScript is primarily used in web pages. Although its name sounds like Java, it has no relationship to it.

JavaMail API Abstract

The JavaMail API provides a platform-independent and protocol-independent framework to build mail and messaging applications. The JavaMail API is available as an optional package for use with Java SE platform and is also included in the Java EE platform.
News of JavaMail API

JavaMail API 1.4 Release

The JavaMail 1.4 release includes many API improvements approved by the Java Community Process via JSR-919. It also includes improvements in MIME parsing performance and support for parsing and constructing Delivery Status Notifications. Note: You will also need the JavaBeans Activation Framework (JAF) extension that provides the javax.activation package. We suggest you use version 1.1 of JAF, the latest release.

Abstract: Lucene tutorial

 Apache Lucene is a high-performance, full-featured text search engine library written entirely in Java. It is a technology suitable for nearly any application that requires full-text search, especially cross-platform.

Apache Lucene is an open source project available for free download. Please use the links on the left to access Lucene.

26 May 2006 - Release 2.0.0 available

This step-by-step article shows you how to implement a custom collection in Visual C# . The .NET Framework base class libraries offer a formal definition of a collection: the System.Collections.ICollection interface.