Eclipse中普通文件夹与java包的转换（package,source folder,folder）

package -> source folder

选中右击package, build path-> Use as Source folder

package ->folder

选中右击package, build path-> Exclude

source folder -> folder

选中右击source folder, build path-> Remove from BuildPath

folder -> source folder

选中右击folder, build path-> Use as Source folder

folder -> package

选中右击folder, build path-> Include