the plane has 5 rows of 4 seats Seats[5][4](first class)
Seats[10][6] economy (10 rows of 6 seats).

how can i keep track of vacent seats to add a passenger

I have to write and read files. if i dint have to store the info in a file
i wouldnt have a prob. I like to do it using only a Seat class with get/set
methods or use no other class.