Jun 3, 2025 · "Objects First with Java: A Practical Introduction Using BlueJ" is a textbook co-written by the developers of BlueJ and has sold hundreds of thousands of copies worldwide.

The BlueJ system and this tutorial are available 'as is', free of charge to anyone for use and non-commercial re-distribution. Disassembly of the system is prohibited.

For BlueJ 4.2.0 and later, OpenJDK 11 and OpenJFX 11 are required, which are only available for 64-bit operating systems. You can download the OpenJDK from the official site, which is a zip …

BlueJ es un entorno de desarrollo para JavaTM diseñado específicamente para la enseñanza en un curso introductorio. Fue diseñado e implementado por el equipo de BlueJ en la Universidad …

BlueJ is a port of Blue to Java, and was first released in 1999. Thanks to generous support from Sun Microsystems (and more recently Oracle), BlueJ development and support has continued …

Download the BlueJ package from the BlueJ website. Note: if you have GDebi installed, you can choose to open the package using GDebi, which will then provide a simple interface to …

To find out how to write your own extensions for BlueJ 4 and earlier, read the Guide to Writing Extensions for BlueJ. You will also need the BlueJ Extension API documentation.

The BlueJ Teamwork features aim to provide tool support for students to be able to work in small teams on programming tasks, projects and assignments. This has been implemented by …

Three menu items in the BlueJ help menu display the BlueJ tutorial, the BlueJ reference manual and the Java standard class libraries. Invoking these functions opens a web browser which, by …

This tutorial discusses BlueJ’s tools for systematic unit testing. If you are familiar with BlueJ’s interaction features, then you know that it is easy in BlueJ to test individual methods interactively.