Question

我希望有人可以帮助我。

我正在尝试创建一个程序来从输入文件中读取变量到输出文件输入文件如下是员工的名字，两个双精度值，卖方工资和他/她卖出的总价值。

JOAO
450.00
1230.30

FDJSI
333.00
2.00

MAJDIIDFH
433.00
222.50

输出所需卖家的总薪水

这是我一直试图制作的代码

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
/**
 * A simple example program that reads a text file line by line and display each line.
 */
public class Salary {
public static void main(String[] args) {

    BufferedReader br = null;


    try {
        br = new BufferedReader(new FileReader("temp.txt"));
        String sellerName;


        while ((sellerName = br.readLine()) != null) {
            String  salary = br.readLine(); 
            String totalSale =br.readLine(); 
            double percentage  = 0.15;

            double  SaleAfterPercentage = totalSale * percentage; 
            //value of the total salary 
            double  finalSalary = salary +  SaleAfterPercentage ; 


        System.out.println(sellerName);
      //  System.out.println(salary);
     //    System.out.println(totalSale);
        }


    } catch (IOException e) {
        e.printStackTrace();

    } finally {
        try {
            if (br != null) {
                br.close();
            }
        } catch (IOException ex) {
            ex.printStackTrace();
            }
        }
    }
}

Answer 1

试试这个

BufferedReader br = null;
try {
    br = new BufferedReader(new FileReader("temp.txt"));
    String line = null;


    while ((line = br.readLine()) != null) {
        StringTokenizer  st = new StringTokenizer(line);

        String sellerName = st.nextToken();
        String salary = st.nextToken(); 
        String totalSale =st.nextToken(); 
        double percentage  = 0.15;

        double  SaleAfterPercentage = (Double.parseDouble(totalSale)) * percentage; 
        //value of the total salary 
        double  finalSalary = Double.parseDouble(salary) +  SaleAfterPercentage ; 


    System.out.println(sellerName);

    System.out.println(finalSalary);
     System.out.println(totalSale);
    }


} catch (Exception e) {
    e.printStackTrace();

} finally {
    try {
        if (br != null) {
            br.close();
        }
    } catch (Exception ex) {
        ex.printStackTrace();
        }
    }

阅读本文

JOAO 450.00 1230.30
FDJSI 333.00 2.00
MAJDIIDFH 433.00 222.50

从文本文件中读取保存并将其打印成文本

1 个答案: