symfony2 - Use custom class in Symfony 2 -

symfony2 - Use custom class in Symfony 2 -

how can utilize custome class in symfony 2 ?

i created class "social" defined namespace "namespace w4pro\social bundle\class" , located in directory "w4pro\socialbundle\class". want utilize class in controller "w4pro\socialbundle\controller\defaultcontroller", used "use w4pro\socialbundle\class\social;" when run page received error

cannot import resource "c:\xampp1\htdocs\test\src\w4pro\socialbundle/controller/" "c:/xampp1/htdocs/test/app/config\routing.yml". (class w4pro\socialbundle\controller\social not exist)

class symfony2