package chapter10; public class Connection { private Station station1, station2; private String lineName; public Connection(Station station1, Station station2, String lineName) { this.station1 = station1; this.station2 = station2; this.lineName = lineName; } public Station getStation1() { return station1; } public Station getStation2() { return station2; } public String getLineName() { return lineName; } public String toString() { return "[" + station1.getName() + ", " + station2.getName() + ", " + lineName + "]"; } }