How to remove the possibility of simple decompilation?

Question

JavaScript

As you know, there are a large number of decompilers for java.
There is also information about obfuscators, but the logic of their work comes down to separating the code into different classes. there is no point in including it for a specific class. Interested in a tool that will help remove the possibility of simple decompilation of a particular class, perhaps just a small change in the byte code.

Answer 1

1. It is done by manipulating html, css and js.
   
2. On the off page of the slider "slick slider" there is exactly such an example (Center Mode)
   
3. Yes
   

Answer 2

Look in the direction of implicit initialization of the class object, with explicit initialization - return a "false" code.

Answer 3

Somewhere I read that an anonymous class cannot be decompiled, but maybe I'm wrong

Answer 4

Recently, there has been more and more talk about Above of Time compilation, which will greatly complicate the reversal of java applications. Unfortunately, java programs can be easily picked apart with due skill, and nothing can be done about it.