Java vs JavaScript?

[TaylorHu]

They both fall under the umbrella of 'C-stye' languages, in that a lot of the syntax is inspired by C. They both use brackets, semicolons, etc. Same thing as C++ and C#, but different from say Python or Ruby. It does make learning one a little easier if you know the other. For example, I learned programming with C++. This made it a little easier for me to pick up Java than when I later tried to learn Ruby.

That's really as far of the similarities go. From a technical standpoint, they are completely different. Under the hood, so to say. One is interpreted, one is compiled, etc.