我似乎无法弄清楚接下来该做什么。它一直显示”不是一个语句”。

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英文:

I can't seem to figure out what to do next. It keeps saying "Not a statement"

问题

// 我已经调试好了一组代码,除了最后一行,它不断告诉我它是“不是一个语句”,我对接下来该做什么感到困惑。如果有人能在这里帮助我,我会非常感谢。

[错误信息的屏幕截图][1]

这里也是图片中的代码

    // 这个程序计算一个商品的折扣后销售价格
    // 原价为$59,折扣为20%。
    
    import java.util.Scanner;  // 需要用到 Scanner 类
    
    public class Discount
    {
       public static void main(String[] args)
       {
          // 声明变量以保存原价、折扣金额和销售价格
          double regularPrice = 59.0;
          double discount; // 声明折扣变量
          double salePrice;
          
          // 创建一个 Scanner 对象以读取输入
          Scanner keyboard = new Scanner(System.in);
          
          // 获取原价
          System.out.print("输入原价:");
          regularPrice = keyboard.nextDouble();
          
          // 计算20%折扣金额
          discount = regularPrice * 0.20;
          
          // 通过从原价中减去折扣来计算销售价格
          salePrice = regularPrice - discount;
          
          // 显示结果
          System.out.println("原价:$" + regularPrice);
          System.out.println("折扣金额:$" + discount);
          System.out.println("销售价格:$" + salePrice);
       }
    }
    
[1]: https://i.stack.imgur.com/hQAQm.png
英文:

I was given a set of code to debug and I have it all debugged except for one last line that keeps telling me that it is "Not a statement" and I am just confused about what to do next. If anyone can help me here it would be much appreciated.

Screenshot of error message

Here is also the code that is in the picture.

// This program calculates the sale price of an
// item that is regularly priced at $59, with
// a 20 percent discount subtracted.

import java.util.Scanner;  // Needed for the Scanner class

public class Discount
{
   public void main(String[] args)
   {
      Variables to; hold the; regular price, the;
      amount of; a discount, and; the sale; price;
      double regularPrice = 59.0;
      double salePrice;
      
      // Create a Scanner object to read input
      scanner keyboard = new Scanner(System.input);
      
      // Get the regular price
      System.out.print("Enter regular price");
      regularPrice = key.next();
      
      // Calculate the amount of a 20% discount.
      discount = regularPrice * 0.20;
      
      // Calculate the sale price by subtracting
      // the discount from the regular price.
      salePrice = regularPrice - discount;
      
      // Display the results.
      system.println("Regular price: $ + regularprice");
      system.println("Discount amount: $ + discount");
      system.println("Sale price: $ + total");
   
}
}

答案1

得分: 2

变量用于保存常规价格、折扣金额和销售价格。
这两行必须是注释。
英文:

Comment these two lines:

Variables to; hold the; regular price, the;
amount of; a discount, and; the sale; price;

They have to be comments.

huangapple
  • 本文由 发表于 2020年9月11日 06:41:37
  • 转载请务必保留本文链接:https://go.coder-hub.com/63838559.html
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