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.

Java is an OOP programming language, while JavaScript is an OOP scripting language. Java creates applications that run in a virtual machine or browser, while JavaScript code runs only on a browser.

To call Nashorn JavaScript from a Java 8 program, you basically need to make a new ScriptEngineManager instance and use that ScriptEngineManager to load the Nashorn script engine by name.

Differences Between Java and JavaScript It’s a very common perception thinking both Java and JavaScript are the same. But the truth is there is nothing common between them except their name Java.

Since Java is widely taught in undergraduate classes, its traffic rises in fall and spring and declines in summer. Among countries not considered wealthy, Python is the eighth most-visited tag.

First of all, JavaScript is not Java. It has nothing to do with Java (The language and its associated technologies from Sun Microsystems). To be honest, I'm not even sure why it's called JavaScript.

JetBrains asked developers to pick up to three languages they consider their primary programming language. In this context, JavaScript comes out on top (39%), followed Java (37%), and Python (31%).

It's a bit unclear what you mean when you say "what can I do". If you're referring to specific language features that are available to Java or C++ that are not available to JavaScript, it would be ...

To call Nashorn JavaScript from a Java 8 program, you basically need to make a new ScriptEngineManager instance and use that ScriptEngineManager to load the Nashorn script engine by name.