[Experts] How do you obfuscate a Java code?

Question

It's now very trending here in sololearn to obfuscate a code by some blunting moves:
___*_*___ etc.
But they're usually done in C++ or Ruby....
even when I tried to search it on Google, it was very confusing :\
How can it be done in Java?

Answer 1

Here's a code for you.
https://code.sololearn.com/cj2FBbvapXgH/?ref=app

Answer 2

@Abdel
I've completed all the courses and now removed them! I lost no xps...

Answer 3

@Krishna
Sir, Wow!

@Tashi
Well, ok! But it won't work here in SoloLearn.

@Agus
Thanks, but I just wanted some help...no need to create a code for me. I'll try to make it on my own :)

Answer 4

@Agus
Thanks...^^

Answer 5

simple one, you can expand it with your creativity and patient.

char _ = 'd';
int __ = (int) _ ;
__ = _*_;
System.out.print(__);

// output 10000

Answer 6

@Abdel
Why is that so?

Answer 7

@Serena
I just checked it.
"_" works as a variable in the program!

Answer 8

You are welcome

Answer 9

@NimWing
Not necessarily I guess(?)

Answer 10

@Agus
Wow! But it's very difficult for me to find that one in his 103 codes :-\ May I get a link to that code?

Answer 11

Usually you don't do that manually... I recommend using a obfuscation tool ^^

Answer 12

Maybe d's ASCII value is 100 I guess(?)

Answer 13

if you want to understand "_" variable use python intepreter. much easier if we check the code each line. like solving this guy puzzle.
https://www.sololearn.com/discuss/372906/?ref=app

Answer 14

well, Krishna Sir had already write them as soon as he saw my python code. and it is a good one.
basicly it use _ as variable
or any ascii character that is supported by the language.

Answer 15

@Dayve : I made it in Python.
https://code.sololearn.com/cnECj0MK9D5A/?ref=app

_ (Underscore) is a special symbol we can use in identifiers. That is the main concept behind an obfuscated code.

Answer 16

Oh sorry, it was Python code named Hi.
well, if you want , i can try to make one in Java.

Answer 17

its human nature

Answer 18

@Dayve , I always visit your profile , but this time I'm surprised !!!

Answer 19

@Dayve , skills section is empty !!! doesn't that make you lose XPs ?

Answer 20

@Dayve , thanks for this info