My Credit Card Company has a file that called BeginningBalan

My Credit Card Company has a file that called “BeginningBalance.dat” which contains the following information: • Customer number->integer • Beginning Balance->double • Purchases->double • Payments->double The company charges 1% of the beginning balance for finance charges. Write a Java program that does the following: • Read in the file, calculates the finance charge per customer • Display all information to the monitor including finance charge and outstanding balance • Creates an output file called “NewBalance.dat” that contains customer number and new balance.

Solution

code.java

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

public class code {

   private static final String FILENAME = \"NewBalance.dat\";
   public static void main(String[] args) {

       try
       {
           File file = new File(\"BeginningBalance.dat\");
;
           BufferedWriter bw = null;
           FileWriter fw = null;
           fw = new FileWriter(FILENAME);
           bw = new BufferedWriter(fw);
           FileReader fileReader = new FileReader(file);
           BufferedReader bufferedReader = new BufferedReader(fileReader);
           while(true)
           {
               String line;
               line = bufferedReader.readLine();
               if(line == null)
               {
                   break;
               }
               String[] parts = line.split(\" \");
               String ss = parts[0];
               String vv = parts[1];
               int Acc_no = Integer.parseInt(vv);

               line = bufferedReader.readLine();
               parts = line.split(\" \");
               ss = parts[0];
               vv = parts[1];
               double Start_bal = Float.valueOf(vv);          

               line = bufferedReader.readLine();
               parts = line.split(\" \");
               ss = parts[0];
               vv = parts[1];
               double purchase = Double.parseDouble(vv);          

               line = bufferedReader.readLine();
               parts = line.split(\" \");
               ss = parts[0];
               vv = parts[1];
               double payment = Double.parseDouble(vv);
               double charges = Start_bal/100;
               double new_bal = Start_bal - purchase - payment -charges;
               fw.write(Integer.toString(Acc_no));
               fw.write(\" \");
               fw.write(Double.toString(new_bal));
               fw.write(\"\ \");              
           }
               fileReader.close();
               fw.close();
       }
       catch (IOException e)
       {
           e.printStackTrace();
       }
   }
}

BeginningBalance.dat

Customernumber 1111
Beginning_bal 1000
Purchases 200
Payments 500
Customernumber 2222
Beginning_bal 1000
Purchases 200
Payments 500
Customernumber 3333
Beginning_bal 2000
Purchases 400
Payments 1000

NewBalance.dat

1111 290.0
2222 290.0
3333 580.0