I want to be ethical hacker. So what programmer language i have to learn?

Answer 1

As many as possible

Answer 2

It's similar to asking : "I want to be an engineer. Which chapter in physics should I learn?"
To which the answer is : "Try to excel in most parts."

Answer 3

to be a good hacker, you should know at least 1-2 programming languages. You also need to know how various scripts work. You need to know how databases work and how data can be accessed.....
So all in all, there is no particular language that will make you a hacker. KNowledge of a programming language is just one piece of the massive puzzle.

Answer 4

Hacking require logical as well as technical skills. To be best, whatever language or tool you learn, you should learn their strengths as well as weakness. for start, keep update with current or past found vulnerabilities and try experimenting them to expose system and also learn how can you beat these security breaches in your developed systems.

Answer 5

I would say those langs:
PHP(Server-side)
Python or Ruby or Perl(Scripting)
HTML(Website itself)
JavaScript(Web-based scripting)
C or C++ or Java(Multiplatform complied)
MySQL or any database(Database)
But no lang is good