In Struts is it possible to use java code  in jsp?

in Struts Tag Program in jsp pages is it efficient to use java code? Please explain?

No issues.. you can use java code... in jsp struts
based framework..
SJYou can use Java code as scriptlets in any JSP, but that doesn't mean there are no issues.
I would say it's a bad idea for the following reasons:
(1) Scriptlet code is difficult to read when mingled with HTML
(2) You can't unit test scriptlet code
(3) It increases the chance that business logic will leak into pages where it doesn't belong.
Better to use a well-proven tag library like JSTL or the Struts taglibs and keep all scriptlets out of your JSPs.
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