How to call web service client in java eclipse

I am developing a android app which invoke cloud service. I add the web reference client by calling wsdl file cloudservice.wsdl in the server site. it will generate files called

(i)CloudServiceLocator(java file)

(ii)cloudservicesoap(interface)

(iii)CloudServiceSoapProxy(java file)

(iv)CloudServiceSoapStub(java file)

(iV)CloudService(interface)

how can i call the methods inside CloudServiceSoapStub class into my application.