Java SE 6 makes it simple to use JavaScript within Java code. Other scripting engines can also be associated with Java, but it is handy to have one provided out-of-the-box with Mozilla Rhino.

Nevertheless, one way of implementing a JavaScript interpreter is to compile JavaScript into Java byte codes, which is what Rhino and Nashorn were designed to do.

The javascript file contains a method addToViewer (theUrl), I need to get the variable 'url' from the servlet into this method.

Java vs. JavaScript Wait, there is a huge difference between Java and JavaScript. Java is from Oracle while the latter JavaScript is from Netscape Inc.

JavaScript on the JVM is better and faster but not always friendlier with Nashorn, the rebuilt JavaScript interpreter. Martin Heller takes the new Rhino's two command-line script runners for a ...