javax.servlet, Java SE or EE?

[zhangyuewuliu]

Hi,

I was wondering whether javax.servlet API belongs to java SE or EE?
When I look through the java doc for EE, javax.servlet is listed
there. When I look through the java doc for SE, javax.servlet is
nowhere to find. However, I can use javax.servlet in my application
under Java SE 5.

I also have the same question regarding javax.xml and java.sql.

I guess my biggest questions is that what is the difference between SE
and EE? What I originally understand is that EE includes the packages
for web services, SOA development. But it really confuses me what API/
package is included in SE and EE.

Thanks.