Difference between ServletConfig and ServletContext?

ServletConfig	ServletContext
ServletConfig  Represents single Servlet.	It represents  whole  WebApplication running on particular JVM and Common for all Servlets.
It’s like a local parameter associated with particular Servlet.	It’s like a local parameter associated with whole application.
It is a name,value pair defined inside the servlet section of web.xml file .so,it has servlet wide scope.	It has application wide scope .so,defined out side of servlet tag in web.xml
getServletConfig() method is used to get the config object.	getServletContext() method is used to get the context object.