my question is how would you do it to make a code as,
i need a list with players[unique] and for every player i got these coords [x, z]
but for every player there can be more than 1 coordinates[x,z]
i need to save it easly and i have to check the coords of the players every time they trigger an event…
so i have no idea where to start
my english aint good so i gonne try to draw it a little for you hehe

this one is resolved
made 2 classes Coordinate and Player and made in player an arraylist of coordinate
in the main class i make an arraylist of player…
Saving happens with xml
thx anyway for the help !