I had a project and everything was working and then for some reasons I had to do a new checkout from the repository and now my IDE is not working. Where there used to be a menu for run as application---there is now only some mobile selection. I just want to run this as a java class. Why can't I?
Src is not a source folder, so your source is not compiled and cannot be run. The hollow J in the icon indicates exactly this.
Add src to the build path.