Add package to Java project structure

I've been working on a local project, and sometimes I hand it over to someone else

The question is: is there another way to add packages to the project? Because I'm not sure this is the right solution

Solution

After deleting the new source file in the source folder, refreshing is sufficient There is no need to add a new source folder

A clean way to collaborate is to use a version control system, such as subversion, GIT, or anything else Copying files between developers is a factor of confusion