Java Recursively sum up the Excel column values

From:
paturi.pradeepgoud.mca@gmail.com
Newsgroups:
comp.lang.java.help
Date:
Fri, 26 Apr 2013 00:52:43 -0700 (PDT)
Message-ID:
<1bfdc43a-42ca-4bf0-bb71-82e1d6d330bf@googlegroups.com>
I have a requirement to perform some calculations using java taking inputs =
from Excel file.

 My Excel file content is as follows:

              column(0) column(1)
Row[0] ECOUT - EXPECTED VALUE TotalDownPaymentAmount = 900.00
Row[1] ECIN - INPUT VALUE (ADD) NetTradeAllowanceAmount = -600.00
Row[2] ECIN - INPUT VALUE (ADD) CashDownPayment = 100.00
Row[3] ECIN - INPUT VALUE (ADD) OtherDownPaymentAmount = PATH DOES NOT=
 EXIST
Row[4] ECIN - INPUT VALUE (ADD) ManufacturerRebateAmount = 250.00
Row[5] ECIN - INPUT VALUE (ADD) DeferredPaymentAmount = PATH DOES NOT =
EXIST
Row[6] ECIN - INPUT VALUE (ADD)
Row[7] ECIN - INPUT VALUE (SUB) TotalDownPaymentAmount = 900.00
Row[8] ECIN - INPUT VALUE (SUB) NetTradeAllowanceAmount = -600.00
Row[9] ECIN - INPUT VALUE (SUB) CashDownPayment = 100.00
Row[10] ECIN - INPUT VALUE (SUB) OtherDownPaymentAmount = PATH DOES NOT=
 EXIST
Row[11] ECIN - INPUT VALUE (SUB) ManufacturerRebateAmount = 250.00
Row[12] ECIN - INPUT VALUE (SUB) DeferredPaymentAmount = PATH DOES NOT =
EXIST
Row[13] ECIN - INPUT VALUE (SUB)
Row[14]
Row[15] ECOUT EXPECTED VALUE 900.00
Row[16] ECOUT ACTUAL VALUE 900.00
Row[17] RESULTS PASS

To perform one calculation there can be any no.of rows but columns are fixe=
d i.e., column(0) & column(1). My calculation logic in java is as follows:

    import java.io.*;
    import org.apache.poi.ss.usermodel.Cell;
    import org.apache.poi.ss.usermodel.Row;
    import org.apache.poi.ss.usermodel.Sheet;
    import org.apache.poi.ss.usermodel.Workbook;
    import org.apache.poi.ss.usermodel.WorkbookFactory;

    public class ReadXlsxXls
    {
    public static void main(String[] args) throws Exception, FileNotFou=
ndException, IOException
      {
         try
            {

 Workbook workbook = WorkbookFactory.create(new FileInputStream("C:/Users=
/Pradeep.HALCYONTEKDC/Desktop/Excel.xlsx"));

                    Sheet sheet = workbook.getSheet("ROLLUPS - Results");
                    double summ = 0;
                    double sub = 0;
                    double result=0;
          

                    for (int i = 0; i < sheet.getLastRowNum(); i++)

                    {

                                Row row = sheet.getRow(i);

                        Cell cell1 = row.getCell(0);

                        Cell cell2 = row.getCell(1);

               

                        if (cell1 != null && cell2 != null)

                        {

                            String cellValue1 = cell1.getStringCellValue(=
);

                            String cellValue2 = cell2.getStringCellValue(=
);

                            if(cellValue2.contains("="))

                            {

                                String stringNumber = cellValue2.split("=
=")[1].trim();

                                if (cellValue1.contains("ADD"))

                                {

                                    if (cellValue2.split("=")[1].trim().c=
ontains("PATH DOES NOT EXIST"))

                                    {

                                        //System.out.println("Path Does Not=
 Exist");

                                    }

                                    else

                                    {

                                        //System.out.println(cellValue1 + "=
/" + stringNumber);

                                        summ = getSumm(summ, stringNumber=
);

                                    }

               

                                }

                                else if (cellValue1.contains("SUB"))

                                {

                                    if (cellValue2.split("=")[1].trim().c=
ontains("PATH DOES NOT EXIST"))

                                    {

                                        //System.out.println("Path Does Not=
 Exist");

                                    }

                                    else

                                    {

                                        //System.out.println(cellValue1 + "=
/" + stringNumber);

                                        sub = getSubstraction(sub, string=
Number);

                                    }

                                }

                               /* else

                                {

                                    System.out.println("Smt wrong");

                                }*/

                            }

                        }

                    }

                    System.out.println("ADD = " + summ);

                    System.out.println("SUB = " + sub);

                    result=summ-sub;

                    System.out.println("RESULT = " +result+"0");

                }

                catch(NullPointerException e)

                {

                                e.printStackTrace();

                }

                catch(Exception e)

                {

                                e.printStackTrace();

                }

    }

                private static double getSubstraction(double main, String y=
our)

                {

                if (your.contains("-"))

                    return main + Double.parseDouble(your.replace("-", ""))=
;

                else if (your.contains("+"))

                    return main - Double.parseDouble(your.replace("+", ""))=
;

                else

                    return main - Double.parseDouble(your);

                }

                private static double getSumm(double main, String your)

                {

                if (your.contains("-"))

                    return main - Double.parseDouble(your.replace("-", ""))=
;

                else if (your.contains("+"))

                    return main + Double.parseDouble(your.replace("+", ""))=
;

                else

                    return main + Double.parseDouble(your);

                }

    }

Up to here fine. If there exists any more data in the rows after the row ha=
ving cell value RESULTS like below, my program should perform the same logi=
c repeatedly until it finds empty row. i.e., if program find empty row afte=
r RESULTS row stop the loop, else continue the loop to perform the no.of in=
dividual calculations.
 
         column(0) column(1)
Row[0] ECOUT - EXPECTED VALUE TotalDownPaymentAmount = 900.00
Row[1] ECIN - INPUT VALUE (ADD) NetTradeAllowanceAmount = -600.00
Row[2] ECIN - INPUT VALUE (ADD) CashDownPayment = 100.00
Row[3] ECIN - INPUT VALUE (ADD) OtherDownPaymentAmount = PATH DOES NOT=
 EXIST
Row[4] ECIN - INPUT VALUE (ADD) ManufacturerRebateAmount = 250.00
Row[5] ECIN - INPUT VALUE (ADD) DeferredPaymentAmount = PATH DOES NOT =
EXIST
Row[6] ECIN - INPUT VALUE (ADD)
Row[7] ECIN - INPUT VALUE (SUB) TotalDownPaymentAmount = 900.00
Row[8] ECIN - INPUT VALUE (SUB) NetTradeAllowanceAmount = -600.00
Row[9] ECIN - INPUT VALUE (SUB) CashDownPayment = 100.00
Row[10] ECIN - INPUT VALUE (SUB) OtherDownPaymentAmount = PATH DOES NOT=
 EXIST
Row[11] ECIN - INPUT VALUE (SUB) ManufacturerRebateAmount = 250.00
Row[12] ECIN - INPUT VALUE (SUB) DeferredPaymentAmount = PATH DOES NOT =
EXIST
Row[13] ECIN - INPUT VALUE (SUB)
Row[14]
Row[15] ECOUT EXPECTED VALUE 900.00
Row[16] ECOUT ACTUAL VALUE 900.00
Row[17] RESULTS PASS
Row[18]
Row[19] ECOUT - EXPECTED VALUE Amount = 1100.00
Row[20] ECIN - INPUT VALUE (ADD) TradeAllowance = -300.00
Row[21] ECIN - INPUT VALUE (ADD) Cash = 400.00
Row[22] ECIN - INPUT VALUE (ADD) PaymentAmount = PATH DOES NOT EXIST
Row[23] ECIN - INPUT VALUE (ADD) RebateAmount = 950.00
Row[24] ECIN - INPUT VALUE (ADD) DownPaymentAmount = PATH DOES NOT EXI=
ST
Row[25] ECIN - INPUT VALUE (ADD)
Row[26] ECIN - INPUT VALUE (SUB) Total = 900.00
Row[27] ECIN - INPUT VALUE (SUB) NetAllowanceAmount = -600.00
Row[28] ECIN - INPUT VALUE (SUB) CashPayment = 100.00
Row[29] ECIN - INPUT VALUE (SUB) OtherAmount = PATH DOES NOT EXIST
Row[30] ECIN - INPUT VALUE (SUB) RebateAmount = 250.00
Row[31] ECIN - INPUT VALUE (SUB) DownPaymentAmount = PATH DOES NOT EXI=
ST
Row[32] ECIN - INPUT VALUE (SUB)
Row[33]
Row[34] ECOUT EXPECTED VALUE 440.00
Row[35] ECOUT ACTUAL VALUE 320.00
Row[36] RESULTS FAIL
Row[37]
Row[38] ECOUT - EXPECTED VALUE Bell = 200.00
Row[39] ECIN - INPUT VALUE (ADD) Charges = -700.00
Row[40] ECIN - INPUT VALUE (ADD) Expenses = PATH DOES NOT EXIST
Row[41] ECIN - INPUT VALUE (ADD)
Row[42] ECIN - INPUT VALUE (SUB) Cosmetics = 300.00
Row[43] ECIN - INPUT VALUE (SUB) Allowances = -100.00
Row[44] ECIN - INPUT VALUE (SUB) CashPayment = 500.00
Row[45] ECIN - INPUT VALUE (SUB)
Row[46]
Row[47] ECOUT EXPECTED VALUE 640.00
Row[48] ECOUT ACTUAL VALUE 720.00
Row[49] RESULTS FAIL

I could able to write the logic for one calculation, but I don't have any i=
dea to use the same logic to perform no.of times for no.of calculations if =
there exists any more rows after the row RESULTS.Please help me in this cas=
e.

 If my requirement is not clear, please let me know. Thank you.

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