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BlueJ

A free Java Development Environment designed for beginners.

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BlueJ is a free Java development environment designed for beginners, providing an interface for writing, running, and exploring Java programs. It is supported by Oracle, and its source code is available on GitHub under the GNU General Public License version 2 with the Classpath Exception.

BlueJ offers tutorials and reference documentation, a textbook, teacher support through the Blueroom website, and several extensions that add to its base functionality. Technical support resources include an FAQ, a bug database, and direct contact options. The software is available for Windows, macOS, and Linux distributions such as Ubuntu and Debian, with a standalone zip for USB drives and a version for ARM64 processors. It requires a 64-bit operating system, with BlueJ 4.1.4 available for 32-bit systems.

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