BlueJ's clear visualization of classes and objects means that readers can immediately appreciate the differences between them and gain a much better understanding of the nature of an object than they would from simply reading source code. Unlike traditional textbooks, the chapters are not ordered by language features but by software development.

BlueJ is an integrated development environment for Java, focused on teaching. To use it, you have to install the Java 5 JDK, unless you did that already. First you have to get the right version of BlueJ. It's 205, as of writing this. Luckily, you can (after a little investigation) find all older versions of BlueJ on their website: Download version 205 here. Bluej free download - BlueJ, BlueJ, BlueJ for Linux, and many more programs.

The University of Kent and Sun Microsystems are collaborating to create a smooth migration path for students learning the Java Programming Language from beginners' stages through to the use of professional development tools.

Sun Microsystems has, for some time, also supported the development of BlueJ, a programming environment developed at the University of Kent, UK, and Deakin University, Australia. BlueJ is an environment specifically aimed at beginning programmers. It offers educational tools, such as visualisation and interaction facilities that greatly aid the learning of object-oriented concepts. First released in 1999, BlueJ has become one of the most popular environments for programming education in introductory programming courses at universities and colleges.

Bluej

Screenshot on Mac OSX
While BlueJ covers the introductory phase of learning to program, and NetBeans offers powerful tools for professional developers, the inevitable step from one into the other has been a difficult barrier for students - until now.
The collaboration of the NetBeans and BlueJ teams has resulted in the development of a new plugin for NetBeans: NetBeans IDE BlueJ Plugin. This tool offers a seamless migration path for students that supports the switch from educational tools into a full-featured, professional IDE.

Learn


Install

Bluej

In NetBeans IDE 6.5, go to Tools Plugins and install the BlueJ Project Support plugin:

Note: Legacy instructions for NetBeans IDE 5.5.1: NetBeans IDE 5.5.1 BlueJ Edition

Bugs, enhancements and features

Here you can find the list of issues which are currently tracked for this product.

Bluejeans Login

Please file bugs and enhancement requests into the netbeans.org bug tracking system
(component ide, subcomponent bluej - or use this prepopulated template).