Confusion about get/set method not working
Hi
Hopefully someone can point out the elementary mistake I have made in my code. I have created a get/set method to hold a value"total" so that I can then get it to display it further down my code in an HTML page. I am setting the value as I can check this by printing it out (line 102) but when I try to use it again it displays 0.0. What have I done wrong?
class ReportListener implements ActionListener
Context context;
ResultSet resultAll;
ResultSet resultTotal;
JFrame frame;
int daysInMonth;
int i;
DisplayCurrencyOnBills d;
DateFormatSymbols symbols;
String[] newWeekday;
Date theDate;
String date;
ReportListener (Context theContext)
context = theContext;
public void actionPerformed(ActionEvent e)
try
printWeeklyReport();
//countDaysInMonth();
getReportMoneyTotal();
catch (SQLException s)
s.printStackTrace();
public void countDaysInMonth()
public void getReportMoneyTotal() throws SQLException
Calendar todayTotal =Calendar.getInstance() ;
SimpleDateFormat reportDateFormat = new SimpleDateFormat("dd MM yyyy");
PreparedStatement preparedT =context.getConnection().prepareStatement(
"SELECT Sum(tblSession.Fee) AS Total, Count(tblBooking.BookingID) AS CountOfBookingID FROM tblSession INNER JOIN "+
"(tblBooking INNER JOIN tblCustomer_Booking ON tblBooking.BookingID = tblCustomer_Booking.BookingID) ON tblSession.SessionID = tblBooking.SessionID "+
"WHERE (((tblBooking.EventDate)>DateAdd('m',-1,#"+reportDateFormat.format(todayTotal.getTime())+"#)) AND ((tblSession.Session)='Morning' Or (tblSession.Session)='Evening')) OR (((tblSession.Session)='Afternoon') AND ((tblBooking.Extension)=Yes))"
ResultSet resultTotal =preparedT.executeQuery();
resultTotal.next();
double total =resultTotal.getDouble("Total");
context.setReportIncomeTotal(total);
System.out.println("Line 102 "+context.getReportIncomeTotal());
preparedT.close();
public void printWeeklyReport() throws SQLException
Calendar today =Calendar.getInstance() ;
SimpleDateFormat reportDateFormat = new SimpleDateFormat("dd MM yyyy");
PreparedStatement prepared =context.getConnection().prepareStatement(
"SELECT tblBooking.EventDate, tblSession.Session, tblBooking.Extension, tblSession.Fee, Count(tblBooking.BookingID) AS CountOfBookingID "+
"FROM tblSession INNER JOIN (tblBooking INNER JOIN tblCustomer_Booking ON tblBooking.BookingID = tblCustomer_Booking.BookingID) ON "+
"tblSession.SessionID = tblBooking.SessionID GROUP BY tblBooking.EventDate, tblSession.Session, tblBooking.Extension, tblSession.Fee "+
"HAVING (((tblBooking.EventDate)>DateAdd('m',-1,#"+reportDateFormat.format(today.getTime())+"#)) AND ((tblSession.Session)='Morning' Or "+
"(tblSession.Session)='Evening')) OR (((tblSession.Session)='Afternoon') AND ((tblBooking.Extension)=Yes))"
ResultSet resultAll =prepared.executeQuery();
resultAll.next();
System.out.println("Line 123 "+context.getReportIncomeTotal());
PrintWriter printWriter;
try
JFileChooser fc=new JFileChooser();
int returnVal = fc.showSaveDialog(frame);
if (returnVal != JFileChooser.APPROVE_OPTION)
return;
FileOutputStream outputStream=
new FileOutputStream(fc.getSelectedFile());
OutputStreamWriter writer=
new OutputStreamWriter(outputStream,"UTF-8");
printWriter=new PrintWriter(writer);
printWriter.println("<html><meta http-equiv='Content-Type' content='text/html; charset=UTF-8'><body><h1>Monthly Usage Statistics</h1>");
printWriter.println("<table width='100%' border='1'><tr><td width='100%' colspan='8'><h2 align='center'>Monthly Summary</h2></td></tr>");
System.out.println("Line 152 "+context.getReportIncomeTotal());
int count = 0;
while ( resultAll.next() )
count++;
String session = resultAll.getString("Session");
Double fee= resultAll.getDouble("Fee");
// display currency correctly
//double d=Double.parseDouble(fee);
Locale locale = new Locale("GBP");
NumberFormat gbpFormat = NumberFormat.getCurrencyInstance(locale);
symbols = new DateFormatSymbols(new Locale("en"));
newWeekday =symbols.getWeekdays();
SimpleDateFormat formatter = new SimpleDateFormat("EEEE",symbols);
Date theEventDate = new Date();
theEventDate=resultAll.getDate("EventDate");
date = formatter.format(theEventDate);
// set date for Usage Report
Calendar reportDate = Calendar.getInstance();
Calendar reportToday =Calendar.getInstance();
reportDate.add(Calendar.MONTH,-1);
SimpleDateFormat reportFormat = new SimpleDateFormat("EEEE ,dd MMM yyy");
//setDecimalFormat for report total
DecimalFormat decFormat = new DecimalFormat(".##");
printWriter.println(
"<tr><td width='100%' colspan='8'>For month from "+reportFormat.format(reportDate.getTime())+" to "+reportFormat.format(reportToday.getTime())+"</td></tr><tr><td width='100%' colspan='8'>Total amount of income from occasional bookings "+decFormat.format(context.getReportIncomeTotal())+"</td>"+
"</tr><tr><td width='100%' colspan='8'>Percentage use for all bookings</td></tr><tr><td width='8%'></td><td width='8%'>MON</td><td width='9%'>TUES</td>"+
"<td width='9%'>WEDS</td><td width='9%'>THURS</td><td width='9%'>FRI</td><td width='9%'>SAT</td><td width='9%'>SUN</td></tr><tr><td width='8%'>AM</td><td width='8%'></td>"+
"<td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td></tr><tr><td width='8%'>PM</td><td width='8%'></td>"+
"<td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td></tr><tr><td width='8%'>EVE</td><td width='8%'></td>"+
"<td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td><td width='9%'></td></tr>"
System.out.println(count);
printWriter.println("</table>");
printWriter.println("</body></html>");
printWriter.close();
prepared.close();
JDialog reportDialog=new JDialog(frame);
reportDialog.setSize(800,600);
JEditorPane editorPane=new JEditorPane(fc.getSelectedFile().toURL());
editorPane.setContentType("text/html; charset=UTF-8");
reportDialog.getContentPane().add(editorPane);
reportDialog.setVisible(true);
catch (IOException exception)
exception.printStackTrace();
This code finds data from a database(this works as it also prints a report). Here is the extraxt of my get/set method which is located in a "context" class.
public void setReportIncomeTotal(double total)
this.total=total;
public double getReportIncomeTotal()
return total;
}I'd be grateful for any help.
but when I try to use it again it displays 0.0This seems to mean that either the value has been reset or you are calling the method on another (new) ReportListener.
It's hard to say, as you didn't provide us with the code sample that illustrate the corresponding scenario (did you?.)
Note that I didn't get into details, but I just noticed that your actionPerformed method first print weekly report, and then get the money total. (Shouldn't it be the opposite order?)
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Getter & Setter Method not getting called for a field enhanced through AET
Hello,
I am new to SAP CRM 7.0 and working on a requirement.
A Z-field was added by our functional guy in CRM 7.0 WebGui through AET in the 'Create Opportunity' transaction (Header data).
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Work done by me:
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Rahul MalaniHi,
If you can see the field in UI and still get_ method is not being triggered then try to regenerate these methods. If it still doesn't work then please look for SAP notes or raise an OSS.
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Getter/setter methods -- how do I use the return values
I'm just learning Java, and I haven't been to this site since the end of July, I think. I have a question regarding getter and setter methods. I switched to the book Head First Java after a poster here recommended it. I'm only about a hundred pages into the book, so the code I'm submitting here reflects that. It's the beginnings of a program I'd eventually like to complete that will take the entered information of my CD's and alphabetize them according to whatever criteria I (or any user for that matter) choose. I realize that this is just the very beginning, and I don't expect to have the complete program completed any time soon -- it's my long term goal, but I thought I could take what I'm learning in the book and put it to practical use as I go along (or at lest try to).
Yes I could have this already done it Excel, but where's the fun and challenge in that? :) Here's the code:
// This program allows the user to enter CD information - Artist name, album title, and year of release -- and then organizes it according the the user's choice according to the user's criteria -- either by artist name, then title, then year of release, or by any other order according to the user's choice.
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}//end class First, I'd like to ask anyone out there to see if I could have written this any more efficiently, with the understanding that I'm only one hundred pages into the book, and I've only gotten as far as getter and setter methods, instance variables, objects and methods. The scanner feature I got from another book, but I abandoned it in favor of HFJ.
Secondly --
I'm confused about getter and setter methods -- I'd like someone to explain to me what they are used for exactly and the difference between the two. I have a general idea, that getters get a result from the method and setters set or maybe assign a value to variable. I submitted this code on another site, and one of the responders told me I wasn't using the returned values from the getter methods (he also told me about using a constructor method, but I haven't got that far in the book yet.). The program compiles and runs fine, but I can't seem to figure out how I'm not using the returned values from the getter methods. Please help and if you can explain in 'beginners terms,' with any code examples you think are appropriate. It will be greatly appreciated.
By the way, I'm not a professional programmer -- I'm learning Java because of the intellectual exercise and the fun of it. So please keep that in mind as well.
Edited by: Straitsfan on Sep 29, 2009 2:03 PMStraitsfan wrote:
First, I'd like to ask anyone out there to see if I could have written this any more efficiently, with the understanding that I'm only one hundred pages into the book, and I've only gotten as far as getter and setter methods, instance variables, objects and methods. The scanner feature I got from another book, but I abandoned it in favor of HFJ.Yes, there is tons you could have done more efficiently. But this is something every new programmer goes through, and I will not spoil the fun. You see, in 3 to 6 months when you have learned much more Java, assuming you stick with it, you will look back at this and be like "what the hell was I thinking" and then realize just haw far you have come. So enjoy that moment and don't spoil it now by asking for what could have been better/ more efficient. If it works it works, just be happy it works.
Straitsfan wrote:
Secondly --
I'm confused about getter and setter methods -- I'd like someone to explain to me what they are used for exactly and the difference between the two. I have a general idea, that getters get a result from the method and setters set or maybe assign a value to variable. I submitted this code on another site, and one of the responders told me I wasn't using the returned values from the getter methods (he also told me about using a constructor method, but I haven't got that far in the book yet.). The program compiles and runs fine, but I can't seem to figure out how I'm not using the returned values from the getter methods. Please help and if you can explain in 'beginners terms,' with any code examples you think are appropriate. It will be greatly appreciated.
By the way, I'm not a professional programmer -- I'm learning Java because of the intellectual exercise and the fun of it. So please keep that in mind as well.First, if you posted this somewhere else you should link to that post, it is good you at least said you did, but doubleposting is considered very rude because what inevitably happens in many cases is the responses are weighed against each other. So you are basically setting anyone up who responds to the post for a trap that could make them look bad when you double post.
You are setting you getters and setters up right as far as I can tell. Which tells me that I think you grasp that a getter lets another class get the variables data, and a setter lets another class set the data. One thing, be sure to use the full variable name so you should have setRecordLabel() and getRecodLabel() as opposed to setLabel() and getLabel(). Think about what happens if you go back and add a label field to the CDList class, bad things the way you have it currently. Sometimes shortcuts are not your friend.
And yes, you are using the getters all wrong since you are not saving off what they return, frankly I am suprised it compiles. It works because you don't really need to use the getters where you have them since the CDList Record (should be lowercase R by the way) object already knows the data and uses it in the printout() method. Basically what you are doing in lines like:
Record[x].getArtistName();is asking for the ArtistName in Record[x] and then getting the name and just dropping it on the floor. You need to store it in something if you want to keep it, like:
String artistName = Record[x].getArtistName();See how that works?
Hope this helped, keep up the good learning and good luck.
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public void getXxx() {
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I've been programming in java for a while now, but
just recently i started wondering about something.
Doesn't get/set methods that contain no other code
defeat the point of encapsulation? i.e -
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Regards,
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Do Get-Set methods break encapsulation?
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I have taken it back to the Apple store genius bar, but they say they don't see anything wrong. Well unless you use it all day and experience the problems when they happen, you wont see anything wrong. But there are lots wrong with it. But this would be the same store as I purchased the phone. And they backed up my old Iphone 4, but were not able to get anything to load back onto my new phone. So, I lost pretty much everything. But over time, some of my contacts have started showing up, although i am still missing over 800 of them.
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Change the properties of a field dynamically using Getter/Setter methods
Thanks
Raj
Edited by: RajICWeb on Aug 12, 2009 4:31 AMHi Harshit
Thanks for the reply. Like you suggested, I redefined the get_i_zfield( ) method. But the program is not going through this method.
FYI.....I created the getter/setter methods manually for my zfield. Plz let me know if I am missing anything. Your help will be greatly appreciated.
Below is my requirement:
I need to add an additional column (zfield) to a tree view. The name of the component is BTRESTREE. (there is only one view in this component- this view is having only one context node).
I tried adding my zfield to the attributes (of the context node) through the wizard by right clicking on the 'Attributes'. But I am not getting the 'Create' Option.
I posted a thread few days back regarding the same problem. One of the experts (Vikash Krishna) suggested me to add some my zfield by redefining the 'GET_TABLE_LINE_SAMPLE' method. As per his suggestion, I was finally able to see my zfield in
the configuation tab.
Now, I have to change the properties of my zfield (make this column editable) in the tree view. For that, the only option that I can see is to change the get_i_zfield( ) method (here we have 'rv_disabled') for my zfield. For this, first I need to add my zfield to the Attributes. To achieve this, I added getter/setter methods manually in the Proxy class.
Thanks
Raj -
How do i make a tab active and make it stay that way always. If i put a website in my home page in order for the tabs to open automatically in that same homepage , this setting is not working, every time I open a tab , the window appears white .
By default Firefox opens a blank page for a new Tab, there is no setting to change that action without installing an add-on.
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Drrhythm2 wrote:
What's the best solution for this? I
Copy the entire /Music/iTunes/ folder from her old compouter to /Music/ in her account on this new computer. -
Hello guys,
I need your help.
In activity step I added one method in "Methods AFTER Work Item Execution (Modal Call)", but this method not work after complete the workitem.
This method run in background, and insert data in one table.
My workflow use BUS1001006 object type, and this method too.
Any idea?
Thanks!!!
KleberHi Arghadip!!!
Now it's work fine!!! Thanks!!!
Please... more one question...
In my method, I need the value of the element <b>_Workitem.WorkitemStatus</b>.
It's possible:
===========================================================
swc_get_element container '<b>_Workitem.WorkitemStatus</b>' vl_status.
===========================================================
or
===========================================================
swc_get_element container '<b>_Workitem-WorkitemStatus</b>' vl_status.
===========================================================
How I do this?
Thank a lot!!!
Kleber -
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I was hoping that someone in the Apple Community would have a solution.
Still waiting.
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