Maps and adding to sets as values

Right

how do i add to (not overwrite) the set which is the value of a key.

I need to keep the existing value of the set and just add to it within the map.

I know using the put method to add to/overwrite a key/value but i need to just basically add to the set within the map (the value)

any help would be appriciated

Sorted it...

Had to put them in a temp set then add to then put the key/value back

Did you get the whole question finished ? I could sure use some help on the last parts

Nice one there, buddy. It helped me.