abstract class Vehicle { // κλάση
// ιδιότητες/γνωρίσματα
protected String model;
protected int maxSpeed;
protected int ccm;
protected int speed = 0;
// μέθοδος δημιουργίας αντικειμένων - κατασκευαστής
public Vehicle(String m, int s, int c) {
model = m; maxSpeed = s; ccm = c;
}
// ενέργειες/μέθοδοι
public String getModel() {
return model;
}
public void setModel(String m) {
this.model = m;
}
public int getMaxSpeed() {
return maxSpeed;
}
public void setMaxSpeed(int ms) {
this.maxSpeed = ms;
}
public int getCcm() {
return ccm;
}
public void setCcm(int ccm) {
this.ccm = ccm;
}
public int getSpeed() {
return speed;
}
public String toString() {
return "Vehicle {model=" + model + ", maxSpeed=" + maxSpeed + ", ccm=" + ccm + ", speed=" + speed + "}";
}
}
class Car extends Vehicle { // κλάση
// μέθοδος δημιουργίας αντικειμένων - κατασκευαστής
public Car(String m, int s, int c) {
super(m, s, c);
}
// ενέργειες/μέθοδοι
public void accelerate() {
if (speed <= maxSpeed - 10)
speed+=10;
}
public void decelerate() {
if (speed >= 10)
speed-=10;
}
public String toString() {
return "Car {model=" + model + ", maxSpeed=" + maxSpeed + ", ccm" + ccm + ", speed=" + speed + "}";
}
}
class Motorcycle extends Vehicle { // κλάση
// ιδιότητες/γνωρίσματα
// μέθοδος δημιουργίας αντικειμένων - κατασκευαστής
public Motorcycle(String m, int s, int c) {
super(m, s, c);
}
// ενέργειες/μέθοδοι
public void accelerate() {
if (speed <= maxSpeed - 20)
speed+=20;
}
public void decelerate() {
if (speed >= 20)
speed-=20;
}
public String toString() {
return "Motorcycle {model=" + model + ", maxSpeed=" + maxSpeed + ", ccm=" + ccm + ", speed=" + speed + "}";
}
}
public class Main {
public static void main(String[] args) {
Car subaru = new Car("Subaru Impreza", 180, 1600);
System.out.println(subaru);
subaru.accelerate();
System.out.println(subaru.getSpeed());
Motorcycle honda = new Motorcycle("Honda CBR 650", 250, 649);
System.out.println(honda);
honda.accelerate();
System.out.println(honda.getSpeed());
}
}