DrHJ: a lightweight pedagogic IDE for Habanero Java

The Java language and runtime environment has had a profound worldwide impact on computer software since its introduction nearly two decades ago. It has enabled the creation of a rich ecosystem of libraries, frameworks, and tools that promises to deliver significant value for many years to come. Consequently, a wide range of Interactive Development Environments (IDEs) have emerged to increase the productivity of Java programmers. They vary in functionality based on the expertise level assumed for their target user base. The Eclipse Java Development Tools (JDT) project offers a rich set of power tools for experienced programmers, but can be harder for novice programmers to set up and use. In contrast, IDEs such as DrJava [2] and BlueJ [16] have been developed primarily for use in introductory programming courses.