BlueJ Help [Mainly File Operations, I think]

Question

I've been working on my Computers project for ages and have been breaking my head over it. It's 5AM and I'm still awake. Could somebody please please please help me with this code:
    public void Rates() throws IOException, IndexOutOfBoundsException
        double xrxClrRatesTemp2;
        double xrxBWRatesTemp2;
        int xrxLoop3;
        java.util.ArrayList<String> xrxClrRatesTemp1 = new java.util.ArrayList<String>();
        java.util.ArrayList<Double> xrxClrRatesTemp = new java.util.ArrayList<Double>();
        java.util.ArrayList<String> xrxBWRatesTemp1 = new java.util.ArrayList<String>();
        java.util.ArrayList<Double> xrxBWRatesTemp = new java.util.ArrayList<Double>();
        System.out.println("Xerox - Golden Bird Stores");
        System.out.println("What would you like to do?");
        Xerox:
        do
            xrxFlag = 0;
            xrxFlag1 = 0;
            xrxFlag2 = 0;
            xrxFlag3 = 0;
            FileWriter xrxClrFW = new FileWriter("Xerox Colour Rates.txt", true) ;
            FileReader xrxClrFR = new FileReader("Xerox Colour Rates.txt");
            BufferedReader xrxClrBR = new BufferedReader (xrxClrFR);
            FileWriter xrxBWFW = new FileWriter("Xerox BW Rates.txt", true) ;
            FileReader xrxBWFR = new FileReader("Xerox BW Rates.txt");
            BufferedReader xrxBWBR = new BufferedReader (xrxBWFR);
            String xrxClrText;
            String xrxBWText;
            while( (xrxClrText = xrxClrBR.readLine() ) != null )
                xrxClrRatesTemp1.add(0, xrxClrText);
                double xrxClrTempVal = Double.parseDouble(xrxClrRatesTemp1.get(0));
                xrxClrRatesTemp.add(0, xrxClrTempVal);
            while( (xrxBWText = xrxBWBR.readLine() ) != null )
                xrxBWRatesTemp1.add(0, xrxBWText);
                double xrxBWTempVal = Double.parseDouble(xrxBWRatesTemp1.get(0));
                xrxBWRatesTemp.add(0, xrxBWTempVal);
            if( (xrxClrRatesTemp.isEmpty() ) == true)
                String xrxClrTempAdd = "0";
                xrxClrRatesTemp1.add(0, xrxClrTempAdd);
                double xrxClrTempAdd2 = Double.parseDouble(xrxClrRatesTemp1.get(0));
                xrxClrRatesTemp.add(0, xrxClrTempAdd2);
            if( (xrxBWRatesTemp.isEmpty() ) == true)
                String xrxBWTempAdd = "0";
                xrxBWRatesTemp1.add(0, xrxBWTempAdd);
                double xrxBWTempAdd2 = Double.parseDouble(xrxBWRatesTemp1.get(0));
                xrxBWRatesTemp.add(0, xrxBWTempAdd2);
            BufferedWriter xrxClrBW = new BufferedWriter(xrxClrFW);
            PrintWriter xrxClrOutFile = new PrintWriter(xrxClrBW);
            BufferedWriter xrxBWBW = new BufferedWriter(xrxBWFW);
            PrintWriter xrxBWOutFile = new PrintWriter(xrxBWBW);
            Xerox1:
            do
                xrxClrRatesTemp.ensureCapacity(1);
                xrxBWRatesTemp.ensureCapacity(1);
                InputStreamReader xrxRead = new InputStreamReader(System.in);
                BufferedReader xrxBr = new BufferedReader(xrxRead);
                System.out.println("1. Increase Xerox Rates");
                System.out.println("2. Decrease Xerox Rates");
                System.out.println("Type Exit if you wish to terminate.");
                System.out.println();
                System.out.println("Kindly enter a number to select a category.");
                String xrxCheck = xrxBr.readLine();
                if (xrxCheck.equalsIgnoreCase(xrxStr3))
                    break Xerox;
                else if (xrxCheck.equals("1"))
                    XeroxInc:
                    do
                        xrxFlag1 = 1;
                        InputStreamReader xrxIncRead = new InputStreamReader(System.in);
                        BufferedReader xrxIncBr = new BufferedReader(xrxIncRead);
                        System.out.println();
                        System.out.println("1. Increase Colour Xerox Rates.");
                        System.out.println("2. Increase B/W Xerox Rates.");
                        String xrxIncCheck = xrxIncBr.readLine();
                        if (xrxIncCheck.equals("1"))
                            xrxFlag2 = 1;
                            XeroxClr1:
                            do
                                InputStreamReader xrxClrRead1 = new InputStreamReader(System.in);
                                BufferedReader xrxClrBr1 = new BufferedReader(xrxClrRead1);
                                System.out.println();
                                System.out.println("How much would you like to increase the rates by?");
                                System.out.println("The current rate is: Rs. " + xrxClrRatesTemp.get(0) + " per side.");
                                String xrxClrCheck1 = xrxClrBr1.readLine();
                                double xrxClrCheck2;
                                char xrxClrCheckA = xrxClrCheck1.charAt(0);
                                if (xrxClrCheck1.equalsIgnoreCase(xrxStr3))
                                    break Xerox1;
                                else if ( (xrxClrCheckA >= 'a' && xrxClrCheckA <= 'z') || (xrxClrCheckA >= 'A' && xrxClrCheckA <='Z') || ( (xrxClrCheckA  >= '0' && xrxClrCheckA <= '9') == false ) )
                                    System.out.println("That is not an acceptable value. Please try again.");
                                    continue XeroxClr1;
                                else if ( (xrxClrCheck2 = Double.parseDouble(xrxClrCheck1) ) >= 0)
                                    xrxFlag3 = 1;
                                    xrxClrCheck2 = Double.parseDouble(xrxClrCheck1);
                                    System.out.println();
                                    xrxClrRatesTemp2 = xrxClrRatesTemp.get(0);
                                    xrxClrRatesTemp2 = xrxClrRatesTemp2 + xrxClrCheck2;
                                    xrxClrRatesTemp.set(0, xrxClrRatesTemp2);
                                    System.out.println("The rate has been increased by Rs. " + xrxClrCheck2 + " per side.");
                            while(xrxFlag3 == 0);
                        else if (xrxIncCheck.equals("2"))
                            xrxFlag2 = 1;
                            XeroxBW1:
                            do
                                InputStreamReader xrxBWRead1 = new InputStreamReader(System.in);
                                BufferedReader xrxBWBr1 = new BufferedReader(xrxBWRead1);
                                System.out.println();
                                System.out.println("How much would you like to increase the rates by?");
                                System.out.println("The current rate is: Rs. " + xrxBWRatesTemp.get(0) + " per side.");
                                String xrxBWCheck1 = xrxBWBr1.readLine();
                                double xrxBWCheck2;
                                char xrxBWCheckA = xrxBWCheck1.charAt(0);
                                if (xrxBWCheck1.equalsIgnoreCase(xrxStr3))
                                    break Xerox1;
                                else if ( (xrxBWCheckA >= 'a' && xrxBWCheckA <= 'z') || (xrxBWCheckA >= 'A' && xrxBWCheckA <='Z') || ( (xrxBWCheckA  >= '0' && xrxBWCheckA <= '9') == false ) )
                                    System.out.println("That is not an acceptable value. Please try again.");
                                    continue XeroxBW1;
                                else if ( (xrxBWCheck2 = Double.parseDouble(xrxBWCheck1) ) >= 0)
                                    xrxFlag3 = 1;
                                    xrxBWCheck2 = Double.parseDouble(xrxBWCheck1);
                                    System.out.println();
                                    xrxBWRatesTemp2 = xrxBWRatesTemp.get(0);
                                    xrxBWRatesTemp2 = xrxBWRatesTemp2 + xrxBWCheck2;
                                    xrxBWRatesTemp.set(0, xrxBWRatesTemp2);
                                    System.out.println("The rate has been increased by Rs. " + xrxBWCheck2 + " per side.");
                            while(xrxFlag3 == 0);
                        else
                            System.out.println("An incorrect command was entered. Please try again.");
                            System.out.println();
                            continue XeroxInc;
                    while(xrxFlag2 == 0);
                else if (xrxCheck.equals("2"))
                    XeroxDec:
                    do
                        xrxFlag1 = 1;
                        InputStreamReader xrxDecRead = new InputStreamReader(System.in);
                        BufferedReader xrxDecBr = new BufferedReader(xrxDecRead);
                        System.out.println();
                        System.out.println("1. Decrease Colour Xerox Rates.");
                        System.out.println("2. Decrease B/W Xerox Rates.");
                        String xrxDecCheck = xrxDecBr.readLine();
                        if (xrxDecCheck.equals("1"))
                            xrxFlag2 = 1;
                            XeroxClr2:
                            do
                                InputStreamReader xrxClrRead2 = new InputStreamReader(System.in);
                                BufferedReader xrxClrBr2 = new BufferedReader(xrxClrRead2);
                                System.out.println();
                                System.out.println("How much would you like to decrease the rates by?");
                                System.out.println("The current rate is: Rs. " + xrxClrRatesTemp.get(0) + " per side.");
                                String xrxClrCheck3 = xrxClrBr2.readLine();
                                double xrxClrCheck4;
                                char xrxClrCheckB = xrxClrCheck3.charAt(0);
                                if (xrxClrCheck3.equalsIgnoreCase(xrxStr3))
                                    break Xerox1;
                                else if ( (xrxClrCheckB >= 'a' && xrxClrCheckB <= 'z') || (xrxClrCheckB >= 'A' && xrxClrCheckB <='Z') || ( (xrxClrCheckB  >= '0' && xrxClrCheckB <= '9') == false) )
                                    System.out.println("That is not an acceptable value. Please try again.");
                                    continue XeroxClr2;
                                else if ( (xrxClrCheck4 = Double.parseDouble(xrxClrCheck3) ) >= 0)
                                    xrxFlag3 = 1;
                                    xrxClrCheck4 = Double.parseDouble(xrxClrCheck3);
                                    System.out.println();
                                    xrxClrRatesTemp2 = xrxClrRatesTemp.get(0);
                                    xrxClrRatesTemp2 = xrxClrRatesTemp2 - xrxClrCheck4;
                                    xrxClrRatesTemp.set(0, xrxClrRatesTemp2);
                                    System.out.println("The rate has been decreased by Rs. " + xrxClrCheck4 + " per side.");
                            while(xrxFlag3 == 0);
                        else if (xrxDecCheck.equals("2"))
                            xrxFlag2 = 1;
                            XeroxBW2:
                            do
                                InputStreamReader xrxBWRead2 = new InputStreamReader(System.in);
                                BufferedReader xrxBWBr2 = new BufferedReader(xrxBWRead2);
                                System.out.println();
                                System.out.println("How much would you like to decrease the rates by?");
                                System.out.println("The current rate is: Rs. " + xrxBWRatesTemp.get(0) + " per side.");
                                String xrxBWCheck3 = xrxBWBr2.readLine();
                                double xrxBWCheck4;
                                char xrxBWCheckB = xrxBWCheck3.charAt(0);
                                if (xrxBWCheck3.equalsIgnoreCase(xrxStr3))
                                    break Xerox1;
                                else if ( (xrxBWCheckB >= 'a' && xrxBWCheckB <= 'z') || (xrxBWCheckB >= 'A' && xrxBWCheckB <='Z') || ( (xrxBWCheckB  >= '0' && xrxBWCheckB <= '9') == false ) )
                                    System.out.println("That is not an acceptable value. Please try again.");
                                    continue XeroxBW2;
                                else if ( (xrxBWCheck4 = Double.parseDouble(xrxBWCheck3) ) >= 0)
                                    xrxFlag3 = 1;
                                    xrxBWCheck4 = Double.parseDouble(xrxBWCheck3);
                                    System.out.println();
                                    xrxBWRatesTemp2 = xrxBWRatesTemp.get(0);
                                    xrxBWRatesTemp2 = xrxBWRatesTemp2 - xrxBWCheck4;
                                    xrxBWRatesTemp.set(0, xrxBWRatesTemp2);
                                    System.out.println("The rate has been decreased by Rs. " + xrxBWCheck4 + " per side.");
                            while(xrxFlag3 == 0);
                        else
                            System.out.println("An incorrect command was entered. Please try again.");
                            System.out.println();
                            continue XeroxDec;
                    while(xrxFlag2 == 0);
                else
                    xrxFlag1 = 0;
                    System.out.println("An incorrect command was entered. Please try again.");
                    System.out.println();
                    continue Xerox1;
            while(xrxFlag1 == 0);
            InputStreamReader xrxRead2 = new InputStreamReader(System.in);
            BufferedReader xrxBr2 = new BufferedReader(xrxRead2);
            System.out.println();
            System.out.println("Type Yes if you wish to enter another command. Type No if you wish to exit.");
            xrxRepeat = xrxBr2.readLine();
            Xerox2:
            do
                if (xrxRepeat.equalsIgnoreCase(xrxStr2))
                    System.out.println();
                    System.out.println("Have a nice day!");
                    System.out.println();
                    xrxFlag = 1;
                    for (xrxLoop3 = 0; xrxLoop3 <= 1; xrxLoop3++)
                        int xrxClrSize = xrxClrRatesTemp.size();
                        int xrxBWSize = xrxBWRatesTemp.size();
                        if (xrxLoop3 == 0 && xrxClrSize == 1 && xrxBWSize == 1)
                            xrxClrOutFile.println(xrxClrRatesTemp.get(0));
                            xrxBWOutFile.println(xrxBWRatesTemp.get(0));
                        else if (xrxLoop3 == 1 && xrxClrSize == 1 && xrxBWSize == 1)
                            xrxClrOutFile.println(xrxClrRatesTemp.get(0));
                            xrxBWOutFile.println(xrxBWRatesTemp.get(0));
                    xrxClrOutFile.close();
                    xrxClrBW.close();
                    xrxClrFW.close();
                    xrxClrBR.close();
                    xrxBWOutFile.close();
                    xrxBWBW.close();
                    xrxBWFW.close();
                    xrxBWBR.close();
                    break Xerox;
                else if (xrxRepeat.equalsIgnoreCase(xrxStr1))
                    System.out.println();
                    System.out.println("Here are the categories again:");
                    xrxFlag = 2;
                    for (xrxLoop3 = 0; xrxLoop3 <= 1; xrxLoop3++)
                        int xrxClrSize = xrxClrRatesTemp.size();
                        int xrxBWSize = xrxBWRatesTemp.size();
                        if (xrxLoop3 == 0 && xrxClrSize == 1 && xrxBWSize == 1)
                            xrxClrOutFile.println(xrxClrRatesTemp.get(0));
                            xrxBWOutFile.println(xrxBWRatesTemp.get(0));
                        else if (xrxLoop3 == 1 && xrxClrSize == 1 && xrxBWSize == 1)
                            xrxClrOutFile.println(xrxClrRatesTemp.get(0));
                            xrxBWOutFile.println(xrxBWRatesTemp.get(0));
                else
                    System.out.println();
                    System.out.println("An incorrect command was entered.");
                    System.out.println();
                    System.out.println("Type Yes if you wish to enter another command. Type No if you wish to exit.");
                    xrxFlag = 0;
                    xrxRepeat = xrxBr2.readLine();
            while (xrxFlag == 0);
        while (xrxRepeat.equalsIgnoreCase(xrxStr1));
    }   My primary concern is that the text file always becomes empty or has the value 0.0 when it isn't supposed to.
Clr = Colour
BW = Black and White
Please guys, I really need help. I'm very sleepy at the moment.

Answer 1

You may get some help here, but many will think that this is a bit too much code to ask any volunteer to go through. For our benefit, and for your benefit, refactor your program so that it will be easier for you and us to figure out. Also, you may wish to leave off on the theatrics as that often turns folks here off and doesn't induce folks to help. You're better off typing in more useful information such as what you've tried and the results of these efforts. But again, I've looked at your code again and it is a single huge method, so I'm not surprised that you're having problems with it. Breaking it down to constituent parts will only help you.
Best of luck.
Edited by: Encephalopathic on Jul 12, 2008 5:49 PM