When comparing Greenfoot vs Eclipse Che, the Slant community recommends Eclipse Che for most people. In the question“What are the best Java IDEs?” Eclipse Che is ranked 3rd while Greenfoot is ranked 10th. The most important reason people chose Eclipse Che is:
Ranked in these QuestionsQuestion Ranking
Greenfoot is free to use.
Pro Great for beginners
Greenfoot was developed as a way to teach Java to first time programmers.
Greenfoot provides for variety of additional resources such as tutorials and community support.
Pro Docker runtimes
Pro SSH + terminal
Built-in terminal with root access so you can make changes to your running machines. Being able to SSH into the workspace so you can use a desktop IDE is handy.
Pro GIT and SVN VCS support
Projects can be easily imported from any Git or Svn repository hosting service.
Pro Reproducible environment
Pro Custom commands
You can package up custom commands with your workspace and then use them (or share them) with everyone else.
Pro Portable workspaces
The workspace in Che includes project sources, IDE and the runtime. So if you hand your Che workspace definition to another user and they execute it they will get everything they need to build, run and debug the project.
Also the runtime is in a Docker container so it will work even if the second user is on a different OS than the original user who shared their workspace with them.
Che does a nice job to automatically map the service:port running in the Docker container (e.g. tomcat on 8080) to the Docker port it actually uses (something in the ephemeral range). You never need to figure that out - it's just made available when you run your server.
Pro Merge tool for VCS
Con Not ideal for professional programmers
Greenfoot is developed to teach programming through creating basic graphical applications (such as simple games).
Though it features an IDE, the interface is quite simple and isn't likely to meet the needs of most experienced developers.
Con Slow runtime
Online IDE is much slower than desktop one.