![]() However, I don’t know yet what caused this problem in the first place. In fact, I probably have about a dozen different versions installed…) (I am running BlueJ and Greenfoot quite happily on my system. My guess is that your problem would have disappeared on the second attempt to start anyway, independent of BlueJ. Greenfoot is a complete IDE that teachers and professionals can use to help others write programs using Java. Unexpected, I know, but not commonly seen. An IDE used to help users teach and learn Java. When the background process is selected from the dock (or Greenfoot fails to start correctly) the About dialogue you see comes from the innards of the code - and shows the BlueJ one. The scenario you see should look similar to Figure 2-1. modify the Greenfoot scenarios in order to create their own animation effects. You will find this scenario in the book projects on the CD of this book. Introduction to Programming with Greenfoot: Object-Oriented Programming in Java with Games and Simulations. Grab the applet by this title bar and drag it out of the browser window. A title bar appears on top of the applet. Here is what you can do about it: With the applet web page open, click on the applet, then hold down the Command (cmd) key. When the Greenfoot window is selected (the main Greenfoot process) you will see a correct Greenfoot About dialogue. textbook, with four additional scenarios are given the students for the. Introduction to Programming with Greenfoot: Object-Oriented Programming in Java with Games and Simulations. At least Chrome and Safari are affected, maybe other browsers as well (I haven't tried). When you run Greenfoot on the Mac, you can see two processes (two icons in the dock). ![]() Greenfoot shares a large amount of code with BlueJ, and the BlueJ code is somewhere deep inside it’s internals. ![]() However, the BlueJ About screen is normal. It shouldn’t have done that – there’s possibly a bug in there somewhere. I am not sure where the version conflict message comes from. The fact that BlueJ was installed on your system probably has nothing to do with it, and the fact that is fixed itself when you deleted BlueJ is most likely coincidence.
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