Define Scriptlet, Expression and Declaration in JSP?

1.	Define Scriptlet, Expression and Declaration in JSP?
Answer» A JSP expression is used to put the Java values directly into the output. It has the FORM of &LT;%= Java expression %>. JSP scriptlets are more than the simple expression and used to insert complex code into the service() method of the GENERATED servlet. Whereas, a JSP DECLARATION defines fields or methods that get inserted into the main body of the servlet class.

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