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We really do mean "small", but there's enough for you to understand the BlueJ basics. If you've some development experience and want to jump right in, then there are some small example projects in the BlueJ folder (C:\Program Files (x86)\BlueJ\examples by default).
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If you are totally new to Java then you should probably begin with the BlueJ readme file (see C:\Program Files (x86)\BlueJ\README.TXT by default), which points you to a useful tutorial and offers other advice on getting started. It's developed by a University, so there's no adware, no registration, no unnecessary visits to their website or other marketing annoyances. If you already have the JDK, though, smaller BlueJ-only downloads are available on the program's site. The BlueJ download we're linking here contains its own code and Oracle's Java Development Kit, which is everything you need to get started. It's designed to help novices learn Java and object-oriented programming, although the more experienced can also use it to develop simple applications. BlueJ is a free integrated development environment for Java.
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