java中调用class的错误在哪里？

Question

我无法理解为什么在调用 class "Action".

时显示错误

import java.util.*;

public class Banks {

    public static void main(String[] args) {

        Scanner scan = new Scanner(System.in);

        Actions act = new Actions();

        System.out.println("How much money would you like to withdrawl?");
        double moneygrabber = scan.nextDouble();

        act.take(6.24);

    }

    class Actions {
        private double balance = 0;
        private double withdrawl;
        private double deposit;

        void withdrawl(int take) {
            this.balance = this.balance - take;

        }

    }

}

Answer 1

withdrawl 是 Actions class 中的方法，它接受整数（参数名称是 take 而不是方法名称，您在从 [=23= 调用时使用方法名称] 实例在你的情况下行动）而不是双重。

而不是

act.take(6.24);

使用

act.withdrawl(6);

如果你想传递 double（带小数点的数字），你应该将你的方法参数类型从 int 更改为 double，比如

void withdrawl(double take)
               ^^^^^^

java中调用class的错误在哪里？

Where is the error calling the class in java?

java

class