title: Online compilers/runtime for Java, C++, Python and ObjC?
body: <p>Does anyone know of a good online compiler/runtime (for C++, Java, Python, ObjC etc.) that I can access on the web? </p>
  
  <p>What I'm looking for is something that would allow me to type in a program in a web form and to run the program and see the results online.</p>
  
  <p>(Let's not get into the why for now. Suffice it to say for the moment that I don't always have access to a compiler/runtime, and firing up an IDE is just overkill for testing out some code snippets)</p>
  
  <p>I know of codepad.org -- but I'm looking for something better. </p>