After running the example, you will see an output like this: Mozilla Rhino Bool Script Engine answer of boolean expression ... Web contents in a servlet container. Developing a language compiler ...

The EL (Expression Language) can be effective to keep scriptlet ... EL provides the facility to use run-time expressions outside JSP scripting elements. JSP standard actions are powerful.

ASP.NET pages can be tested live within Expression Web using a bundled, lightweight ASP Development Server. Unfortunately, ASP.NET is the only directly supported server-side scripting language.