Java Servlet and Java

What's the difference between Java Se开发者_C百科rvlet and core Java? Is that difficult to learn Java Servlet assuming some background in Java programming?

A servlet is an interface from this package. I think you really are looking for the difference between JavaEE and core Java. Since the implementations of the JavaEE packages are written in java it should not be that difficult to learn.

This gives a fairly good and brief description of the difference between the two.

Java Servlet programming is the use of the javax.servlet.* family of classes to provide a dynamic java-based web service. You program it using Java and they are not difficult to learn, however it's much easier to implement most functionality using JSP/JSF (which themselves are implemented using Servlets) as it's easier to edit the content.