HQ9+ From Esolang (Redirected from HQ9 Plus ) Jump to: navigation , search HQ9+ is a joke language with four instructions: H : Print "hello, world" Q : Print the program's source code 9 : Print the lyrics to "99 Bottles of Beer" + : Increment the accumulator Although the language is not of serious interest by itself, it can be useful to implement HQ9+ in a new esoteric programming language , since doing so proves that all the tasks above, except the quine, are possible. HQ9+ was created by Cliff L. Biffle . See also [ edit ] HQ9++ , an object-oriented extension of HQ9+. CHIQRSX9+ , another HQ9+ extension. HQ9+B , an ℒ-complete extension of HQ9+. HQ9+2D , a 2-D extension of HQ9+. H9+ , with one fewer instruction but still capable of all of the tasks. External resources [ edit ] HQ9+ home page (from the Wayback Machine ; retrieved on 2 June 2009) HQ9+ a...