yes 100% male, I know the feeling finding a male on the first grow, however don't give up hope yet mate, you say you have another 2? then hopefully they will be females for you. Males usually show first, then a bit later the females will show little pistils.
Also you could keep the male for breeding or you could wait till the pollen sacs burst and collect the pollen and store for future. However if your wanting to chop it down, you could use it to make some edibles.
Hope this help.
Peace & Good Luck