package devices.ev3; public class SensorPort extends Port { public enum SensorPortID { Port1, Port2, Port3, Port4 } public SensorPort(SensorPortID portID) { switch (portID) { case Port1: port = 0; break; case Port2: port = 1; break; case Port3: port = 2; break; case Port4: port = 3; break; } } }