Question

我一直在公共静态空行中出错，而system.out输入你的年销售额。我想要做的是让用户输入年度销售额，然后通过计算固定工资和佣金来获得年度销售额：

import java.util.Scanner;
import java.io.BufferedReader;

public class commission {

    public static void main(String[] args)

            Scanner input = new Scanner( System.in; 
            BufferReader br = new BufferReader(instream);

            System.out.println("Enter your annual sales");
            String annual = br.readLine();

            int salary = 75_502_81; 
            int com = 38_28; 
            int compensation = annual * com + salary;

}

Answer 1

当前问题是缺少开括号（{）和右括号（)）

public static void main(String[] args) {
                                       ^--- This is important...
    Scanner input = new Scanner( System.in); 
                                          ^--- Also important :P
    BufferReader br = new BufferReader(instream);

    System.out.println("Enter your annual sales");
    String annual = br.readLine();

    int salary = 75_502_81; 
    int com = 38_28; 
    int compensation = annual * com + salary;
}

没有BufferReader这样的课程，我认为你的意思是BufferedReader

您的代码中没有声明这样的变量instream，我认为您的意思可能是input，但BufferedReader不会将input作为有效的输入类型，因此我不确定你的意图是什么......

您还会收到有关未被捕获的IOException

的警告

您可以使用try-catch

解决这些问题

我也很好奇75_502_81和38_28是什么意思？ int值不能包含除数值之外的任何内容...

annual也是String，这意味着您无法对其执行任何数学运算。

您需要先将值转换为int ...

public static void main(String[] args) {

    Scanner input = new Scanner( System.in ); 
    BufferedReader br = null;

    try {
        br = new BufferedReader(instream);
        System.out.println("Enter your annual sales");
        String annual = br.readLine();

        int salary = 7550281; 
        int com = 3828; 
        int compensation = Integer.parseInt(annual) * com + salary;

    } catch (IOException exp) {
        exp.printStackTrace();
    } finally {
        try {
            br.close();
        } catch (Exception exp) {
        }
    }
}

但是，当我

时，我还在为此而烦恼

public static void main(String[] args) {

    Scanner input = new Scanner( System.in ); 
    System.out.println("Enter your annual sales");
    String annual = input.nextLine();

    int salary = 7550281; 
    int com = 3828; 
    int compensation = Integer.parseInt(annual) * com + salary;

}

会做同样的事情......

Answer 2

你不能这样做

int compensation = annual * com + salary;

因为year是一个String :)你必须将String解析为Integer，也许就像这样

Integer.parseInt(annual);

希望有所帮助：）

Answer 3

您的代码中存在以下几个问题：

当前错误的原因是您错过了right paren. And a left brace，因为@Makoto已评论过。

试试这个：

public static void main(String[] args) {
    Scanner input = new Scanner( System.in); 
    System.out.println("Enter your annual sales");

    int annual = Integer.parseInt(input.nextLine());
    int salary = 75_502_81; 
    int com = 38_28; 
    int compensation = annual * com + salary;
    System.out.println(compensation);
}

Answer 4

也是一个缺少的大括号

Scanner input = new Scanner( System.in);<-----

我不确定扫描仪对象是否配有bufferedreader，它需要一个读者对象

Answer 5

语法错误很少。尝试以下代码，它必须解决问题。

public class Commission {

    public static void main(String[] args) { 
            Scanner input = new Scanner( System.in); 
            System.out.println("Enter your annual sales");
            String annual = input.nextLine();

            int salary = 75_502_81; 
            int com = 38_28; 
            int compensation = Integer.parseInt(annual) * com + salary;
            System.out.println("compensation is: "+compensation );
    }
}

编写java文件

5 个答案: