用JAVA为某研究所编写一个通用程序,用来计算每一种交通工具运行1000公里所需的时间,已知速度ABC,求速度

public interface Vehicle {
double getSpeed();
}
public abstract class AbstractVehicle implements Vehicle {
protected int A;
protected int B;
protected int C;
}
public class Car007 extends AbstractVehicle {
@Override
public double getSpeed() {
return A * B / C;
}
}
public class Plane extends AbstractVehicle {
@Override
public double getSpeed() {
return A + B + C;
}
}