I'm sorry if this is a dumb question, I don't really know a lot about this field. Would this allow me to play Puzzle Pirates (a Java game) in the browser, or w

I'm sorry if this is a dumb question, I don't really know a lot about this field. Would this allow me to play Puzzle Pirates (a Java game) in the browser, or would the developers still need to do some work for the game to be actually playable in the browser?