What is Java Servlet | the role of a Java Servlet, how it is executed, where it is stored and its access to Java EE class library components

http://www.youtube.com/watch?v=Y1-JvAC9tlMendofvid [starttext] This is a Video Tutorial explains the role of a Java Servlet, how it is executed, where it is stored and its access to Java EE class library components.
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