ポリモーフィズムでオーバーローしたメソッドを呼び出したい

Question

前提・実現したいこと

下記のエラーメッセージを解決したいのですが、ポリ−フォーフィズムを用いてオーバーロードしたメソッドを使いたい。

発生している問題・エラーメッセージ

TestPackage.java:12: エラー: クラス SimpleCarのメソッド inputDataは指定された型に適用できません。
	cars[0].inputData(7f, 9f, 1f, 1f, 10);
	       ^
  期待値: float,float,float,float
  検出値: float,float,float,float,int
  理由: 実引数リストと仮引数リストの長さが異なります
TestPackage.java:13: エラー: クラス SimpleCarのメソッド inputDataは指定された型に適用できません。
	cars[1].inputData(7f, 9f, 1f, 1f, 10);
	       ^
  期待値: float,float,float,float
  検出値: float,float,float,float,int
  理由: 実引数リストと仮引数リストの長さが異なります
エラー2個

該当のソースコード

public class SimpleCar{
    protected String maker;
    protected float fuelEconomy;
    protected float startTime;
    protected float endTime;
    protected float mileage;//Total of driving kilometer
    protected float cliantTime;

    public SimpleCar(String maker, float fuelEconomy){//no airconditioner
	this.maker = maker;
	this.fuelEconomy = fuelEconomy;
    }
    public void inputData(float startTime, float endTime, float mileage, float cliantTime){
	this.startTime = startTime;
	this.endTime = endTime;
	this.mileage = mileage;
	this.cliantTime = cliantTime;
    }
    public float calculateFuelConsumptionOldRegulations(){
	return mileage/fuelEconomy;
    }
    public float calculateFuelConsumptionNewRegulations(){
	return mileage/fuelEconomy;
    }
}
---------------------------------------------------------------------------
public class AdvancedCar extends SimpleCar{
    protected float airConditionerFuelEconomy;

    public AdvancedCar(String maker, float fuelEconomy, float airConditionerFuelEconomy){
	super(maker, fuelEconomy);
	this.airConditionerFuelEconomy = airConditionerFuelEconomy;
    }
    public float calculateFuelConsumptionOldRegulations(){
	return mileage/fuelEconomy + (endTime-startTime)/airConditionerFuelEconomy;
    }
    public float calculateFuelConsumptionNewRegulations(){
	return mileage/fuelEconomy + (endTime-startTime)/airConditionerFuelEconomy;
    }
}
-------------------------------------------------------------------------------
public class DeluxeCar extends AdvancedCar{
    
    public DeluxeCar(String maker, float fuelEconomy, float airConditionerFuelEconomy){
	super(maker, fuelEconomy, airConditionerFuelEconomy);
    }
    public float calculateFuelConsumptionOldRegulations(){
	return mileage/fuelEconomy + (endTime-startTime)/airConditionerFuelEconomy;
    }
    public float calculateFuelConsumptionNewRegulations(){
	return mileage/fuelEconomy + cliantTime/airConditionerFuelEconomy;
    }
}
-------------------------------------------------------------------------------
public class BusTaxi extends DeluxeCar{
    protected int minNumPassengers;

    public BusTaxi(String maker, float fuelEconomy, float airConditionerFuelEconomy){
	super(maker, fuelEconomy, airConditionerFuelEconomy);
    }
    public float calculateFuelConsumptionOldRegulations(){
	return mileage/fuelEconomy + (endTime-startTime)/(airConditionerFuelEconomy/minNumPassengers);
    }
    public float calculateFuelConsumptionNewRegulations(){
	return mileage/fuelEconomy + cliantTime/(airConditionerFuelEconomy/minNumPassengers);
    }
    public void inputData(float startTime, float endTime, float mileage, float cliantTime, int minNumPassengers){
	super.inputData(startTime, endTime, mileage, cliantTime);
	this.minNumPassengers = minNumPassengers;
    }
}
---------------------------------------------------------------------
public class FuelConsumptionCalculation {
    private float fuelConsumptionOldRegulation = 0;
    private float fuelConsumptionNewRegulation = 0;
    private SimpleCar[] cars;

    public FuelConsumptionCalculation(SimpleCar[] Cars) {
	cars = Cars;
	calculateFuelConsumption();
   }
    private void calculateFuelConsumption() {
	for(int i=0; i<cars.length; i++){
	    fuelConsumptionOldRegulation += cars[i].calculateFuelConsumptionOldRegulations();
	}
	for(int i=0; i<cars.length; i++){
	    fuelConsumptionNewRegulation += cars[i].calculateFuelConsumptionNewRegulations();
	}
    }
    public float getFuelConsumptionOldRegulations() {
	return fuelConsumptionOldRegulation;
    }
    public float getFuelConsumptionNewRegulations() {
	return fuelConsumptionNewRegulation;
    }
}
-------------------------------------------------
public class TestPackage{
    public static void main(String[] args){
	SimpleCar[] cars = {
	    new BusTaxi("Mercedes", 6.6f, 11.5f),
	    new BusTaxi("Mercedes", 6.6f, 11.5f),
	    new DeluxeCar("Honda", 14f, 10.5f),
	    new AdvancedCar("Toyota", 15.5f, 9.5f),
	    new SimpleCar("Nissan", 13f),
	};
	cars[0].inputData(7f, 9f, 1f, 1f, 10);
	cars[1].inputData(7f, 9f, 1f, 1f, 10);
	cars[2].inputData(7f, 9f, 1f, 1f);
	cars[3].inputData(7f, 9f, 1f, 1f);
	cars[4].inputData(7f, 9f, 1f, 1f);

	FuelConsumptionCalculation fcc = new FuelConsumptionCalculation( cars );
	
	System.out.println("The amount of saving fuel on airconditioner usage is "+ (fcc.getFuelConsumptionOldRegulations()-fcc.getFuelConsumptionNewRegulations()) +".");
    }
}

Comments

[quickquip]

polymorphismはポリモーフィズムかポリモルフィズムと書かれることが多いのでせめてタイトルは修正しておいた方がいいかと思います

[rakkn]

ご指摘ありがとうございます。修正します。

Answer 1

ポリ−フォーフィズムを用いてオーバーロードしたメソッドを使いたい。

無理です。親クラスで宣言していないシグネチャのメソッドは、親クラスの型を使って呼ぶことはできません。

Comments

[rakkn]

ご回答ありがとうございます。なるほど、そうなんですね。