So which is the most difficult programming language ?
none of them, varies from person to person,, personally i found Assembly the most complex language to learn, thats why im still learning now...
Hacked by Mr_Nakup3nda
Its brainfuck for sure...https://en.wikipedia.org/wiki/BrainfuckThough if you are asking about useful programming languages, then it might be assembly.
It all depends on what you classify as difficult. Generally, people find languages with more specific syntax to be more difficult.
My opinion: Binary
Depends on you. You could find SQL or XML to be extreme, or C# or Java to be simple. As to the toughest...to me I guess it'll be C++ or Java due to their long programs.