Eclipse encourages different functional modules to be divided into independent projects so that the structure is clear and flexible, because we can use feature to make different combinations of these projects, output and get the product with different functions.
However, projects in package Explorer will increase at a faster speed. When you are dealing with dozens or even hundreds of projects, the efficiency will inevitably be greatly reduced. Fortunately, eclipse provides the working set function, which can be used to divide these projects.
In the package explorer view, select Show-> working sets from the drop-down menu, select working sets from the menu, and define your working set in the dialog box, each Working Set should correspond to at least one project. After you press OK, your project will be divided into classes, and unclassified projects will be placed in the work set named other projects.
Try it now!
Supplement (): another way to organize projects is to use multiple workspaces, which seems to be good. See tips for using eclipse into tively.