非机动车辆

class Traffic {
String actor;

public Traffic(String actor) {
    this.actor = actor;
}

public final String obey() {
    return this.actor + "在行至有交通信号灯的路口时，要遵守“红灯停、绿灯行”的交通规则。";
}

}

class Passerby extends Traffic {
public Passerby(String actor) {
super(actor);
}
}

class NonMotorVehicle extends Traffic {
public NonMotorVehicle(String actor) {
super(actor);
}
}

class MotorVehicle extends Traffic {
public MotorVehicle(String actor) {
super(actor);
}
}

public class TrafficRegulations {
public static void main(String[] args) {
Passerby armedPolice = new Passerby("行人");
System.out.println(armedPolice.obey());
NonMotorVehicle peoplePolice = new NonMotorVehicle("非机动车辆");
System.out.println(peoplePolice.obey());
MotorVehicle trafficPolice = new MotorVehicle("机动车辆");
System.out.println(trafficPolice.obey());
}
}