1. With the increasing number of projects, in order to facilitate the project testing and deployment process management, can be the purpose class and Lib (that is, the deployment of the required files) in a unified management directory.
The method is as follows: Java build Path->default output folder->browse->create New folder-> Enter a filename, such as clazz->advanced-> Link to folder in the file system-> Select a uniformly managed directory and create a new output folder->ok for the project under that directory.
2. Change source folders, you can replace or remove the src file when you do not want to use the Eclipse default src directory as the source file storage directory.
The method for removing the SRC directory is as follows: Java build path-> Select the src directory->remove->add folder-> Select the project home directory->ok in source folders on build Path.
So the project source file directory is directly for your package file directory.