brainfuck

Enough with your toy languages, get back to the basics with a turing machine.

Cat:
,[,.]

Helloworld:
++++++++++[>+++++++>++++++++++>+++>+<<<<-]>++.>+.+++++++..+++.>++.<<+++++++++++++++.>.+++.------.--------.>+.>.

Multiplication:
,>,>++++++++[<------<------>>-]
<<[>[>+>+<<-]>>[<<+>>-]<<<-]
>>>++++++[<++++++++>-],<.>.

Take your C++, Java, Scheme, etc, and go back to college. Expert Programmers use real programming languages.

>>3
actually he does

>>3
please good sir, define turing machine.