It looked like the guy on the right was telling the guy on the left he couldn't use Java to get his gralats... Yet the guy on the right was also asking how he did it... I believe since the guy on the right doesn't know, he cannot really accuse someone of not being able to do something because of their limited view on how the final product was even reached..

i.e. I bake bread, he doesn't know how the bread got the taste, yet he is trying to tell me I didn't do something that I say I did to get to those results due to his limited mindset of what could be done. -using coffee instead of water.

Does that slightly help? It just seems like the one on the right was trying to tell the one on the left he didn't 'hack' the money the way he said he did, by using Java. As if he were in a position to tell him what he did or did not do to get it...