TrainCar
This trait represents the passenger cars of a train in a train ticket reservation system. It describes the common operations of all passenger car types. Different classes representing different kinds of train cars will have different implementations for these operations.
In this simple implementation, no data is stored about who has reserved which places (seats, beds, or the like) in the cars. A car object only keeps track of whether a place is reserved or not.
A train car’s state is mutable; it changes as reservations are made.
Value members
Abstract methods
Returns the number of free, unreserved places (seats, beds, or the like) in this car.
Returns the number of free, unreserved places (seats, beds, or the like) in this car.
Returns the number of places (seats, beds, or the like) this car has for passengers. This is a positive number.
Returns the number of places (seats, beds, or the like) this car has for passengers. This is a positive number.
Reserves places (seats, beds, or the like) in the car for a group of people whose size is indicated by the parameter. The whole group should be able to get places that are reasonably close to each other (what exactly this means is left for concrete classes to decide). If it is not possible to reserve suitable places for all members of the group, no places are reserved at all. The return value indicates whether the places were reserved or not.
Reserves places (seats, beds, or the like) in the car for a group of people whose size is indicated by the parameter. The whole group should be able to get places that are reasonably close to each other (what exactly this means is left for concrete classes to decide). If it is not possible to reserve suitable places for all members of the group, no places are reserved at all. The return value indicates whether the places were reserved or not.