Answer Posted / aashish r. wadhokar

no, We cannot implement an interface in a jsp bcoz jsp is an
file not a class as well as jsp is converted into a servlet
class
and this translation(jsp file to servlet class) is done by
jsp engine so we cant implement interface in jsp file.

yes, we can extend a class in jsp page using extends keyword
using extends attribute of the page directive.
eg: extends "com.classes.class"

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