Java Swing is technolgy which we are using to design 
desktop application.
JSP is a server side technology called as Java Server Pages.

when we need to design a application in client - server 
architecture where client is desktop application then we 
will go for swings in java, and we can use jsp on 
serverside.

JSP is also used to represent the view as HTML on browser 
in MVC architecture.

swing is a technology which is used for front-end design.
jsp is technology which is used in server side