Question

我试图从同一个src文件夹中调用该类，＃34; CarFuel＆＃34;。它不起作用并显示错误。

使用main方法的类代码：

public class CarFuel {

    int CarFuel = 5; //Gallons of fuel starting in car


    public CarFuel(int FuelAmount){ //Constructor for defined staring fuel amount
        CarFuel = FuelAmount;
    }

    public void GetGasoline(int amount){ //Filling up gasoline, amount = how much gasoline filled up
        CarFuel = CarFuel + amount;
    }

    public void DrainGasoline(int amount){ //Driving car, amount = how much gasoline drained
        CarFuel = CarFuel - amount;
    }

    public int GetGasoline(){ //returns how much gasoline is left in the end
        return CarFuel;
    }

}

//MAIN EXEX IN CarFuelExec

以下是使用这些方法的主要类：

public class CarFuelExec {

    public static void main(String[] args){

        CarFuel.car = new CarFuel(0);
        car.GetGasoline(36);
        car.DrainGasoline(5);
         System.out.println("The remaining fuel in your car is: " + car.GetGasoline + " gallons");

    }
}

有人可以告诉我为什么CarFuel.car =新Carfuel（0）;是不是正在调用另一个类并输出错误？

Answer 1

public class CarFuelExec {
    public static void main(String[] args){
        CarFuel car = new CarFuel(0);//make object of Car_Fuel
        car.GetGasoline(36);
        car.DrainGasoline(5);
        System.out.println("The remaining fuel in your car is: " + car.GetGasoline() + " gallons"); //method GetGasoline need parenparenthesis
    }
}

试试这个代码它会起作用.....

在同一个src文件夹中调用另一个类将不起作用

1 个答案: