Usually, our applications operate with the current state of a domain object. But sometimes, we need to know the entire history of the domain object changes. For example, we want to know how an order ...

In system development using Java, processes such as aggregating large amounts of numerical data to find a total or multiplying values according to specific rules occur frequently. In conventional ...

With enterprise applications, it's not unusual to aggregate content published on live sites. As such, it's a good idea to develop a level of familiarity with one of the popular Java screen scraper ...