package SandBox;
public class Coctail implements IDish {
    double water;
    double alcohol;
    double topping;

    public Coctail(double water, double alcohol, double topping) {
        this.water = water;
        this.alcohol = alcohol;
        this.topping = topping;
    }

    @Override
    public String toString() {
        return "Coctail with " + alcohol + " ml buxla";
    }
}

package SandBox;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;

public class DishFactory {
    public static IDish getMyFuckingDish(double[] ingredients, Class<? extends IDish> dishType) throws IllegalAccessException, InvocationTargetException, InstantiationException {
        Constructor<?>[] cons = dishType.getConstructors();
        //return dishType.cast(cons[0].newInstance((Object) ingredients));
        return dishType.cast(cons[0].newInstance(ingredients[0], ingredients[1], ingredients[2]));
    }

    public static void main(String[] args) throws IllegalAccessException, InstantiationException, InvocationTargetException {
        double[] ingredSet = {20, 30, 50};
        Coctail cock = (Coctail) getMyFuckingDish(ingredSet, Coctail.class);
        System.out.println(cock);
    }
}