java 9 isn't even officially out of beta (if even alpha), don't bother with it. use 7 or 8 if you need, but skip 9 for now.
besides, if you need to know it, why not check yourself? it'd be much faster than asking, then waiting for someone who also happened to install it to check it.
besides, if you need to know it, why not check yourself? it'd be much faster than asking, then waiting for someone who also happened to install it to check it.