我的nextDouble（）;扫描仪给我一个“找不到符号”错误

Question

我正在为我的计算机科学课做一个项目，遇到了一个让我无法继续进行的问题，我试图做一个非常简单的用户输入问题，但我一直遇到错误。这是我的代码和错误：

import java.util.*;

public class BeekeepingIncome{

   public static void main(String [] args)
   {
   double rawHoney;
   double honeyCombs; 
   double rent = 534.99;
   
   Scanner scanner = new Scanner(System.in);
   
   System.out.println("How much honey in pounds was purchased?");
   rawHoney = nextdouble();
   System.out.println("How many honey combs in pounds were purchased?");

   
   
   
   
   }
   
}

BeekeepingIncome.java:20: error: cannot find symbol
   rawHoney = nextDouble();
              ^
  symbol:   method nextDouble()
  location: class BeekeepingIncome
1 error

有什么办法可以解决这个问题？

Answer 1

您需要使用Scanner：

rawHoney = scanner.nextDouble();

https://www.w3schools.com/java/java_user_input.asp

https://docs.oracle.com/javase/7/docs/api/java/util/Scanner.html