如何添加奖金？

Question

I have done a code, which reads a file consists a number of employees, salary, and their rankings, based on their rankings how can we add the bonus percent to their salary...

 String phrases;  
 int salary=0;
 try {
    FileReader in = new FileReader("bonus.txt"); 
    BufferedReader readFile = new BufferedReader(in);   
    while ((phrases = readFile.readLine()) != null) {   
       System.out.println(phrases);
       double bonus;

       if(phrases.contains("1")){
          bonus=salary/0.03;
          System.out.println("Bonus: " + bonus);
       }else if(phrases.contains("2")){
          bonus=salary/0.08;
          System.out.println("Bonus: " + bonus);
       }else if(phrases.contains("3")){
          bonus=salary/0.20;
          System.out.println("Bonus: " + bonus);
       }

       // System.out.println();
    }
    readFile.close();
    in.close(); 
 }catch (IOException e) {        
    System.out.println("Problem reading file.");
    System.err.println("IOException: " + e.getMessage());
 } 

It outputs:

 Jame   900000  1
 Bonus: 0.0
 Jane   60000   2
 Bonus: 0.0
 Don    866000  3
 Bonus: 0.0

I have no idea why

Answer 1

You check the condition with equals method but your phrases variable contains different value rather than 1,2,3 that's why you get the bonus 0.

if(phrases.contains("1")){
       bonus=salary/0.03;

}else if(phrases.contains("2")){
       bonus=salary/0.08;

}else if(phrases.contains("3")){
        bonus=salary/0.20;
}

or you can get the last parameter with:

phrases.substring(phrases.length()-1, phrases.length())

you can get the third parameter using contains or split method. Please check this tutorial: https://www.tutorialspoint.com/java/java_string_split.htm

And one more thing your salary is always zero (0) . please correct it

I have posted full code here:

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;

class SubClass{
    public static void main(String[] args) {
        String phrases;  
        int salary=0;
        try {
            FileReader in = new FileReader("bonus.txt"); 
            BufferedReader readFile = new BufferedReader(in);   
            while ((phrases = readFile.readLine()) != null) {   
                    System.out.println(phrases);
                    phrases = phrases.trim().replaceAll("[ ]{2,}", " ");
                    String splitStr [] = phrases.split(" "); 
                    double bonus;
                    salary = Integer.parseInt(splitStr[1]);
                    if(splitStr[2].contains("1")){
                        bonus=salary/0.03;
                        System.out.println("Bonus: " + bonus);

                 }else if(splitStr[2].contains("2")){
                        bonus=salary/0.08;
                        System.out.println("Bonus: " + bonus);

                 }else if(splitStr[2].contains("3")){
                         bonus=salary/0.20;
                         System.out.println("Bonus: " + bonus);

                 }

                 // System.out.println();
                }
            readFile.close();
            in.close(); 
        }catch (IOException e) {        
            System.out.println("Problem reading file.");
                System.err.println("IOException: " + e.getMessage());
        } 
    }
}

Answer 2

The other answers appear to not cater for the fact that your salary variable is always 0 , thus, your bonus calculation, which depends on your salary value will always be 0.

Assuming that this: Jame 900000 1 is a sample line from your text file, there are various issues with your code.

1. The first issue is this: (phrases.equals("1") . If phrase will be equal to the text in the current line you are processing: Jame 900000 1 , this statement (and the same for the other two) will never return true, thus the bonus will never be calculated.
2. The second issue is that you are never extracting the salary value.

You will need to replace this:

while ((phrases = readFile.readLine()) != null) {   
    System.out.println(phrases);
    if(phrases.equals("1")){

With something like this:

while ((phrases = readFile.readLine()) != null) {   
    System.out.println(phrases);
    String[] employeeData = phrases.split("\\t");   //This assumes that your data is split by tabs.
    salary = Double.parse(employeeData[1]);
    if("1".equals(employeeData[2])) {
        bonus = salary * 0.03;
    }
    ...

Answer 3

If you have an employeeBonus.txt file like below.

Jame    900000  2
Jane    60000   1
Don     866000  3

I think you will have three tokens as a string so, you can use a stringtokenizer class in order to get a salary and a grade.

At the first line of file is

Jame    900000  2

and the result of encoded string was

Jame%20%20%20%20900000%092

I've finally found the content of text file was mixed with a space and tab character by URL encoding.

So, the usage of this type is as follows,

StringTokenizer stTok = new StringTokenizer(phrase, " \t");

It takes a salary and an identifier of bonus value from third and second token.

name = stTok.nextToken(); //first token
salary = Integer.valueOf(stTok.nextToken()).intValue(); //second token
grade = stTok.nextToken();

[source code]

package com.tobee.tests.inout;

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.StringTokenizer;

public class CheckBounsFromFile {
    public static void main(String[] args) {
        String name, phrase, grade;
        double bonus = 0;
        int salary = 0;
        BufferedReader readFile = null;
        try {
            readFile = new BufferedReader(new FileReader("resource/aa/employeeBonus.txt"));

            while ((phrase = readFile.readLine()) != null) {
                //System.out.println(phrase);

                StringTokenizer stTok = new StringTokenizer(phrase, " \t");

                name = stTok.nextToken();

                salary = Integer.valueOf(stTok.nextToken()).intValue();

                grade = stTok.nextToken();

                if(grade!= null && !grade.equals(""))
                {
                    if (grade.equals("1")) {
                        bonus = salary / 0.03;
                    } else if (grade.equals("2")) {
                        bonus = salary / 0.08;

                    } else if (grade.equals("3")) {
                        bonus = salary / 0.20;
                    }

                    System.out.printf("name[%s]salary[%d]Bonus[%f] \n",name, salary, bonus);
                }

            }

        } catch (IOException e) {
            System.out.println("Problem reading file.");
            System.err.println("IOException: " + e.getMessage());
        }
        finally
        {
            try {
                readFile.close();
            } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }

    }
}

[result]

name[Jame]salary[900000]Bonus[30000000.000000] 
name[Jane]salary[60000]Bonus[750000.000000] 
name[Don]salary[866000]Bonus[4330000.000000] 

Have a nice day.