Basic JSP scripting elements

JavaServer Pages (JPSs) offer a number of ways to inject Java code into the Servlet code generated when a JSP is compiled.

Scriptlet code elements put the included Java code into the _jspService method. The included code needs to be complete java code (remember the trailing semicolons):


Expressions are evaluated and placed into out.print() methods to be written to the output stream. The code included is an expression, not a complete Java statement, so leave off the trailing semicolon:


Declaration elements insert the enclosed code into the body of the servlet code allowing the declaration of variables or methods: