Creating a hybrid programming language using Java and Javascript, is it possible?
I don’t think it’s very likely.
JavaScript is a dynamic scripting language. it is relatively implementation agnostic; in fact, Node.js is one example of how JavaScript can be embedded into some sort of environment. Node.js is literally a Javascript interpreter given some neat trick and functionality to use in its system.
Java, however, is a very different language. Everything in Java is an object, while in JavaScript, things might be a bit different. It’s to JavaScript as car is to carpet. If anything, the best idea is to simply embed JavaScript into Java using something like Rhino.
A hybrid language, if literally done, would require blending aspects of both into one. This would involve a new compiler, interpreter scheme, etc.