How to explain the following code?

Similar Questions

• How to convert the following code in as3?

  As the title says... How to convert the following code to as3?... Thanks in advance.

  import flash.display.BitmapData;

  linkageId = "landscape";
  myBitmapData = BitmapData.loadBitmap (linkageId);

  
  MC = this.createEmptyMovieClip ("mc", 1);
  mc.attachBitmap (myBitmapData, 1);

  onMouseMove = function() {}
  myNewColor = "0 x" + myBitmapData.getPixel(_xmouse,_ymouse).toString (16);
  newColor.setRGB (myNewColor);
  selectedColor.colorValue.text = myNewColor;
  }
  selectedColor.swapDepths (_root.getNextHighestDepth ());
  newColor = new Color (selectedColor.sample);

  :

  var myBitmapData:landscape = new landscape (0,0);

  var bmp:Bitmap = new Bitmap (myBitmapData);
  addChild (bmp);

  stage.addEventListener (MouseEvent.MOUSE_MOVE, f);

  function f(e:MouseEvent):void {}
  var myNewColor:String = "0 x" + myBitmapData.getPixel(mouseX,mouseY).toString (16);
  newColorTransform.color = uint (myNewColor);
  selectedColor.sample.transform.colorTransform = newColorTransform;
  selectedColor.colorValue.text = myNewColor;
  }
  addChild (selectedColor);
  var newColorTransform:ColorTransform = selectedColor.sample.transform.colorTransform;

• Explain to me please copy the following code (in English)!  Thank you.

  Hi all

  I work with some AS3 code that someone else wrote.  The code creates data tables and filled by pulling of a webservice .NET using SOAP and data tables.

  I copied and pasted the code below.  Most of it makes sense and I understand it, however, there are some things that I've never seen before and have not been able to find on the internet.  Most of the things I have a problem with, I created uppercase comments with my questions.

  If someone could take a look and tell me what's going on I'd be happy.

  Thank you.

                //Load result data into XMLList structure
                var xmlData:XML = XML(myService.GetViewResults.lastResult);
                
                //gets the DataTables data, length of tableXML is the number of Tables you got
                var tableXML:XMLList = xmlData.GetViewResultsResult.DataTables.children();
                              
                //gets the number of tables returned in the result
                var numTables:int = tableXML.children().length();
                
                //seperates out the data for each table
                var tempXMLArray:Array = new Array();
                var tempXML:XML;
                for (var i:int=0; i<numTables; i++)
                {
                    tempXML = tableXML[i];
                    tempXMLArray.push(tempXML);
                }
                
                //create a datagrid for each table
                var datagrid1:DataGrid, datagrid2:DataGrid, datagrid3:DataGrid;
                
                //create array collections to feed datagrids
                var ac1:ArrayCollection, ac2:ArrayCollection, ac3:ArrayCollection;
                
                var currentTableXML:XML;
                var columns:Array = new Array();
                var dgc:DataGridColumn;
                var obj:Object;  // WHY IS THIS OBJECT NEEDED?
                
                //CREATING TABLE 1
                currentTableXML = tempXMLArray[0];
                
                datagrid1 = new DataGrid();
                datagrid1.width = 1000;
                datagrid1.height = 200;
                datagrid1.y = 0;
                
                columns = new Array();
                for (i=0; i<currentTableXML.Columns.children().length(); i++)
                {
                    dgc = new DataGridColumn(currentTableXML.Columns.NHRCViewResultColumn.ColumnName[i].toString());
                    dgc.dataField = currentTableXML.Columns.NHRCViewResultColumn.ColumnName[i];
                    columns.push(dgc);
                }
            
                datagrid1.columns = columns;
                
                ac1 = new ArrayCollection;
                
                  
                 // looping through each piece of data in the row
                 for (i=0; i<currentTableXML.Rows.children().length(); i++)
                {
                    trace("table 1:creating row " + i);
  
                 // I HAVE NO IDEA WHATS GOING ON HERE... WHAT IS THIS OBJECT DOING EXACTLY?
                    obj = {
                           // I DON'T UNDERSTAND THIS SYNTAX - WHAT ARE THE COLONS FOR???  AND WHY STORE IN AN OBJECT???
                        ((datagrid1.columns[0] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.Values[i].string[0]),
                        ((datagrid1.columns[1] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.Values[i].string[1]),
                        ((datagrid1.columns[2] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.Values[i].string[2]),
                        ((datagrid1.columns[3] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.Values[i].string[3]),
                        ((datagrid1.columns[4] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.Values[i].string[4]),
                        ((datagrid1.columns[5] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.Values[i].string[5])
                    };
                    
                    ac1.addItem(obj);
                }
                
                datagrid1.dataProvider = ac1;
                this.addChild(datagrid1);  //Adding populated datagrid to the screeen
                

  The following code creates a variable of type obj Object. You must declare the variable, and you don't want to do that inside the loop where the object is built, because then it will be to be worn in the block of the loop, so it is first declared outside the loop.

  var obj:Object;  // WHY IS THIS OBJECT NEEDED?
  

  Now, you construct the object. Here's the logic of what happens.

  Objects of this type in Flex are constructed as follows:

  objName = {}

  fieldName1: fieldVal1,.

  fieldName2: fieldVal2,.

  fieldName3: fieldVal3

  };

  In this code, the field names are:

  (datagrid1.columns[0] as DataGridColumn).dataField.toString()
  

  and you must first caste as DataGridColumn.

  The field values are:

  (currentTableXML.Rows.NHRCViewResultRow.Values[i].string[0])
  

  It seems here that you take the first element in the element of the chain of the ith values element, which is obtained by the analysis in the currentTableXML, the lines, the element NHRCViewResultRow element.

  // I HAVE NO IDEA WHATS GOING ON HERE... WHAT IS THIS OBJECT DOING EXACTLY?
                    obj = {
                           // I DON'T UNDERSTAND THIS SYNTAX - WHAT ARE THE COLONS FOR???  AND WHY STORE IN AN OBJECT???
                        ((datagrid1.columns[0] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.V alues[i].string[0]),
                        ((datagrid1.columns[1] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.V alues[i].string[1]),
                        ((datagrid1.columns[2] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.V alues[i].string[2]),
                        ((datagrid1.columns[3] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.V alues[i].string[3]),
                        ((datagrid1.columns[4] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.V alues[i].string[4]),
                        ((datagrid1.columns[5] as DataGridColumn).dataField.toString()):(currentTableXML.Rows.NHRCViewResultRow.V alues[i].string[5])
                    };
  

• How to explain the error in the executable file?

  As everyone knows, there are 3 parts to the cluster of error: status and source code. The State's flag, the code is the error code and the source is where Labview think that the error occurred. Normally, when I'm in the environment labview course I can just right mouse click the error and click "explain the error" and a description and detailed error possible cause rises.

  However, when I create an executable I don't know how to explain the error to the user, such as labview.

  When an error occurs that I wish I had a popup that says code error, source and EXPLANATION. The code and the only source is so enigmatic sound quite panic inducing the user, whether or not the error is unrecoverable/crash-inducing. Also this would save me having to search the online error code.

  How to make the explanation of the error code? There is a vi that I can enter an error code and get the explanation string?

  There is probably something simple I forget but I couldn't find the answer in my research. Thanks in advance for your help.

  Simple error handler and screw General Error Handler?

• My computer laptop stop periodically and gives the following codes BCCode d1, 00000010 BCP1, BCP2 00000002 BCP3 00000001, 8A25F1C8 BCP4.

  My stop laptop periodically and gives the following codes:
   
  BCCode d1
  BCP1 00000010
  BCP2 00000002
  BCP3 00000001
  8A25F1C8 BCP4

  I was not able to find a solution to restart windows by clicking find a solution online. The system is free of viruses and other items malcious. Any ideas would be helpful because my laptop did not come with a repair disc and I'm afraid to make one with these questions.

  Thank you

  Hello

  Think video drivers especially if it may be others. Refer to the section of driver in my generic bluescreen
  methods of troubleshooting below. BIOS, low and antispyway/antivirus/security chipset drivers
  programs may also cause this. Check the resolution of problems and when you get to the section driver view
  for generic methods in the next message and then back to the if necessary troubleshooting tool.

  BCCode: D1 0x000000D1

  Cause

  A driver tried to access a pageable (or that is completely invalid) address while the IRQL was too high.

  This bug check is usually caused by drivers who used a wrong address.

  If the first parameter has the same value as the fourth parameter, and the third parameter indicates a runtime operation, this bug check was probably caused by a driver who was trying to run code when the code itself has been paginated outside. The possible causes for the error page are:

  • The function was marked as pageable and was operating at an IRQL higher (including obtaining a lock).
  • The function call was made to a function in another pilot, and that this driver has been unloaded.
  • The function was called by using a function pointer that was an invalid pointer.

  ======================================================

  Look in the Event Viewer to see if something is reported on those.
  http://www.computerperformance.co.UK/Vista/vista_event_viewer.htm

  MyEventViewer - free - a simple alternative in the standard event viewer
  Windows. TIP - Options - Advanced filter allows you to see a time rather
  of the entire file.
  http://www.NirSoft.NET/utils/my_event_viewer.html

  -------------------------------------------------------------------------
  Also this, so you can see the probable bluescreens.

  Windows Vista restarts automatically if your computer encounters an error that requires him to plant.
  http://www.winvistatips.com/disable-automatic-restart-T84.html

  -------------------------------------------------------------------------

  Here are a few ways to possibly fix the blue screen issue. If you could give the blue screen
  info that would help. Such as ITC and 4 others entered at the bottom left. And all others
  error information such as codes of STOP and info like IRQL_NOT_LESS_OR_EQUAL or PAGE_FAULT_IN_NONPAGED_AREA and similar messages.

  As examples:

  BCCode: 116
  BCP1: 87BC9510
  BCP2: 8C013D80
  BCP3: 00000000
  BCP4: 00000002

  or in this format:

  Stop: 0 x 00000000 (oxoooooooo oxoooooooo oxoooooooo oxooooooooo)
  Tcpip.sys - address blocking 0 x 0 00000000 000000000 DateStamp 0 x 000000000

  It is an excellent tool for displaying the blue screen error information

  BlueScreenView scans all your minidump files created during 'blue screen of death '.
  hangs and displays information about all accidents of a table - free
  http://www.NirSoft.NET/utils/blue_screen_view.html

  BlueScreens many are caused by old or damaged, drivers particularly video drivers but it
  are other causes.

  You can do without if needed fail or the Vista DVD or recovery command prompt mode
  Options if your system was installed by the manufacturer.

  This tells you how to access the System Recovery Options and/or a Vista DVD
  http://windowshelp.Microsoft.com/Windows/en-us/help/326b756b-1601-435e-99D0-1585439470351033.mspx

  You can try a system restore to a point before the problem started when one exists.

  How to make a Vista system restore
  http://www.Vistax64.com/tutorials/76905-System-Restore-how.html

  -------------------------------------------------------------------------

  Start - type this in the search box-> find COMMAND at the top and RIGHT CLICK – RUN AS ADMIN

  Enter this at the command prompt - sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe)
  program generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  The log can give you the answer if there is a corrupted driver. (Says not all possible
  driver problems).

  Also run CheckDisk, so we cannot exclude as much as possible of the corruption.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  -------------------------------------------------------------------------

  Often drivers up-to-date will help, usually video, sound, network card (NIC), WiFi, part 3
  keyboard and mouse, as well as of other major device drivers.

  Look at the sites of the manufacturer for drivers - and the manufacturer of the device manually.
  http://pcsupport.about.com/od/driverssupport/HT/driverdlmfgr.htm

  How to install a device driver in Vista Device Manager
  http://www.Vistax64.com/tutorials/193584-Device-Manager-install-driver.html

  How to disable automatic driver Installation in Windows Vista - drivers
  http://www.AddictiveTips.com/Windows-Tips/how-to-disable-automatic-driver-installation-in-Windows-Vista/
  http://TechNet.Microsoft.com/en-us/library/cc730606 (WS.10) .aspx

  -------------------------------------------------------------------------

  How to fix BlueScreen (STOP) errors that cause Windows Vista to shut down or restart
  quit unexpectedly
  http://support.Microsoft.com/kb/958233

  Troubleshooting, STOP error blue screen Vista
  http://www.chicagotech.NET/Vista/vistabluescreen.htm

  Understanding and decoding BSOD (blue screen of death) Messages
  http://www.Taranfx.com/blog/?p=692

  Windows - troubleshooting blue screen errors
  http://KB.wisc.edu/page.php?id=7033

  -------------------------------------------------------------------------

  In some cases, it may be necessary.

  The Options or Vista recovery disk Startup Repair

  How to do a startup repair
  http://www.Vistax64.com/tutorials/91467-startup-repair.html

  This tells you how to access the System Recovery Options and/or a Vista DVD
  http://windowshelp.Microsoft.com/Windows/en-us/help/326b756b-1601-435e-99D0-1585439470351033.mspx

  I hope this helps.

  Rob - bicycle - Mark Twain said it is good.

• Why dbms_lock.sleep (n seconds) Gets a deterministic behavior in the following code?

  Hello everyone,

  Parameter	Value
  Oracle Version	Enterprise Edition Release 11.2.0.1.0 - 64 bit
  OPERATING SYSTEM	Linux Fedora Core 17 (X86_64)

  Consider the following code:

  SET SERVEROUTPUT ON
  BEGIN
       sys.dbms_output.put_line('sleeping for 3 seconds');
       sys.dbms_lock.sleep(3);
       sys.dbms_output.put_line('done.');
  END;
  /
  SET SERVEROUTPUT OFF;
  

  I expect the above code to make, made in order the following:

  1. Print the message "sleep for 3 seconds"
  2. Sleep switch for 3 seconds
  3. Print the message 'done '.

  Yet, what is happening is that the program runs respectively then Step2 step 1 and finally Stap3. In other words the program first, sleeps, and once past the sleep period messages are printed.

  Could someone explain to me why?

  Thanks in advance,

  Kind regards

  Dariyoosh

  "

  Note:

  Messages sent usingDBMS_OUTPUT

  are not actually sent to the mailing of subroutine or complete relaxation. There is no mechanism to flush the output during execution of a procedure.

  "
  http://docs.Oracle.com/CD/E11882_01/AppDev.112/e25788/d_output.htm#CIHEGBBF

• How to disconnect the access code from my iPad 2

  How to disconnect the access code from my iPad 2

  What do you mean by "disconnect"? If you mean stop using an access code then settings > password (enter your current password) > disable password

• Why the following code causes a time-out when you try to read a finite number of samples of the USB-6216?

  I do not have Measurement Studio, but I use the 4 available with DAQmx .NET support.

  The following code throws a timeout when calling ReadMultiSample(). Can someone please tell me what I'm doing wrong? I would get 40 000 samples with a sampling rate of 20 kHz. I've renamed by device USB-6216 of 'Meas1' by using MAX.

  [edit] I want to emphasize that I use AnalogMultiChannelReader because I intend to grab more than one channel once I understand that.

  Thanks in advance!

              using (task task = new Task()) {}
  
                  task. AIChannels.CreateVoltageChannel ("Meas1/ai1", "", AITerminalConfiguration.Differential, -0.2, 0.2, AIVoltageUnits.Volts);
  
                  task. Timing.SampleQuantityMode = SampleQuantityMode.FiniteSamples;
  
                  task. Timing.SampleClockRate = 20000;
  
                  task. Timing.SamplesPerChannel = 40000;
  
                  AnalogMultiChannelReader reader = new AnalogMultiChannelReader (task. Stream);
  
                  task. Start();
  
                  samples is reader. ReadMultiSample (40000); //  <-- timeout="" occurs="" during="" this="">
  
                  task. Stop();
  
              }

  I forgot to put the SampleTimingType:

  task. Timing.SampleTimingType = SampleTimingType.SampleClock;

• Lean how to run the stop code when the highest level VI ends

  Hi people.

  I am a newbie of LV with 30 years of experience in embedded SW engineering.  I searched for how to run the stop code when a VI of highest level ends.  I found many examples, but they are horribly complicated.  A little birdie told me that such a model of simple design should not be so compilicated.

  My application is an application of high tension control to disable all HV checkpoints when the SW ends.  My VI code is running in a while loop with a stop button that leads out of the loop.  I can easily accomplish my requirement by programming with a sequence of plate that runs after the end of the main loop.  The technique of flat sequence does not work when the user clicks the Cancel button in the toolbar of façade, more than that market when the user clicks the close button of the application (X button) when you run the exe application.

  Can someone tell me please a simple technique, the code example that can show me a lean and elegant way to accomplish my task?  It doesn't have to be an obvious solution (for example a stop induced watchdog seems simple enough).

  Thank you - John Speth

  1. place this code in a VI:

  (also attached)

  Calling code in your VI of highest level like this:

  

• HP 2000: I have a Hp laptop computer 2000 I don't know the password for the bios the error I get is the following code.

  I have a Hp laptop, 2000 but I neeed to access the bios and I do not know the password the error I get is the following code.

  85280672

  Help

  Hello

  Come in:

  30188274

• can someone help with the following code plsql errors...

  Hello

  If anyone can help with the following code... to get a successful outing.

  create or replace package lib_01 as

  procedure lib_proc01 (p_user_id in numbers, p_user_name in varchar2);

  end lib_01;

  create or replace package body lib_01 as

  procedure lib_proc01 (p_user_id in numbers, p_user_name in varchar2) as

  number of v_user_id;

  v_user_name varchar2 (50);

  number of v_avl_books;

  number of v_avl_days;

  date of v_end_date;

  date of v_return_date;

  Start

  dbms_output.put_line ('Enter User Name');

  dbms_output.put_line (' username :'|| p_user_name);

  Select user_id, user_name in v_user_id v_user_name of user_registration where user_name = p_user_name;

  If v_user_name <>p_user_name then

  dbms_output.put_line (' username is not.) Please submit full name ');

  end if;

  If v_user_id is null or v_user_name is null then

  dbms_output.put_line ("' user not found");

  validate_userLogin;

  on the other

  validate_issuedbooks (p_issuecount);

  end if;

  If v_issuecount < v_avl_books then

  issuebooks;

  on the other

  Number of return of late_fee (p_mem_id, p_extradays, p_latefee_total);

  end if;

  If paid_flag = "Y" then

  issuebooks;

  on the other

  dbms_output.put_line ("' book may be issued due to its maximum reached late fees");

  end if;

  end lib_proc01;

  procedure validate_userLogin is

  procedure reg_proc is

  procedure user_validate (p_id_proof in varchar2, p_id_no out varchar2) is

  v_id_proof varchar2 (20);

  v_id_no varchar2 (20);

  Start

  Select user_name, id_proof, id_no, v_user_name, v_id_proof, v_id_no of user_registration where id_proof = p_id_proof;

  If v_id_proof = "Adhar_Card" then

  dbms_output.put_line ('user a valid proof of ID');

  dbms_output.put_line (' and the id no. :'|| is p_id_no).

  on the other

  dbms_output.put_line ('Invalid ID evidence.) Please submit valid proof of ID ');

  end if;

  exception

  When no_data_found then

  dbms_output.put_line ('No Data found');

  end user_validate;

  procedure member_validate (p_mem_id series)

  v_mem_flag char (1);

  curr_date date: = sysdate;

  date of v_mem_enddate;

  Start

  dbms_output.put_line('Mem_flag:'|| v_mem_flag);

  Select mem_flag in the v_mem_flag of user_login where user_id = v_user_id;

  If v_mem_flag = 'n' or v_mem_flag is null then

  dbms_output.put_line ('The User do not have membership');

  on the other

  Select mem_id in the v_mem_id of user_login where user_id = v_user_id;

  dbms_output.put_line ('the user has membership');

  v_mem_id: = p_mem_id;

  Select mem_enddate in the member_login v_mem_enddate where mem_id = v_mem_id;

  If v_mem_enddate < curr_date then

  dbms_output.put_line ('Membership has expired' | v_mem_id |' on ' | v_mem_enddate);

  on the other

  dbms_output.put_line ('User a validity again' | v_mem_enddate);

  end if;

  end if;

  exception

  When no_data_found then

  dbms_output.put_line ("' no data found");

  while others then

  dbms_output.put_line (' another error.) Please find");

  end member_validate;

  Start

  insert into user_registration values ('& first_name ',' & last_name', null, ' & user_type',)

  address_ty ("& bldg_no",

  '& bldg_name',

  '& Street',

  ' & city ",

  '& State',

  '& zip'

  ),

  user_phone ',' & user_mail ',' mem_idproof', ' & id_no');

  Dbms_output.put_line ('user is properly registered');

  exception

  When no_data_found then

  dbms_output.put_line ("' data not found");

  end reg_proc;

  Start

  Dbms_output.put_line (' enter ID or user name ');

  Dbms_output.put_line (' username: ' | p_user_name);

  If v_user_name is null then

  Dbms_output.put_line ('user not found');

  reg_proc;

  Insert user_login SELECT user_id_seq. NEXTVAL, user_name, NULL, mem_id_seq. NEXTVAL, user_type FROM user_registration WHERE user_name is lower (p_user_name);

  Dbms_output.put_line (' because the user wants to have the membership? ");

  Dbms_output.put_line ('If Yes, please pay dues");

  INSERT INTO member_login SELECT mem_id_seq. CURRVAL, SYSDATE, SYSDATE + avl_days, 500, 'Y' of user_login ul, bl book_loan WHERE ul.mem_type = bl.mem_type AND user_name = p_user_name;

  END IF;

  exception

  When no_data_found then

  dbms_output.put_line ("' no data found");

  When too_many_rows then

  dbms_output.put_line (' too many lines).

  END validate_userLogin;

  procedure validate_issuedbooks (p_issuecount series)

  number of v_issuecount;

  Start

  Select user_login u, bl book_loan, avl_days, avl_books in v_avl_days, v_avl_books where bl.mem_type = u.mem_type and user_id = p_user_id;

  SELECT count (case when end_date < end return_date then p_mem_id) as invalidcount in v_issuecount from book_count where mem_id = p_mem_id;

  v_issuecount: = p_issuecount;

  dbms_output.put_line (' no. books that the user contains the :'|| p_issuecount);

  end validate_issuedbooks;

  procedure issuebooks is

  procedure book_avl (p_avl_now_flag in p_avl_date Boolean, date) is

  v_avl_now_flag char (1);

  date of v_avl_date;

  procedure reader_bookissue is

  Start

  insert into values drive (p_user_id, v_book_id, sysdate, sysdate, null);

  insert into book_count values(p_mem_id,v_book_id,sysdate,sysdate,null);

  Update book_availability set issued_to is "Reader" where book_id = v_book_id;.

  end reader_bookissue;

  Start

  Select book_name, b.book_id avl_now_flag v_book_name, v_book_id, v_avl_now_flag of the book b, book_availability b where b.book_id = ba.book_id and ba.book_id = p_book_id;

  If v_avl_now_flag = "Y" then

  dbms_output.put_line ('the book is available for issuance' | v_book_id);

  on the other

  Select mem_type in the v_mem_type of user_login where user_id = (select user_id from book_availability where avl_now_flag = 'n' and book_id = p_book_id);

  If v_mem_type = "Reader" then

  reader_bookissue;

  dbms_output.put_line (' the book is with Reader.) Please try tomorrow.') ;

  on the other

  dbms_output.put_line ('the book is member');

  end if;

  Select avl_date in the book_availability v_avl_date where book_id = p_book_id;

  v_avl_date: = p_avl_date;

  dbms_output.put_line (' the available date is: ' | p_avl_date);

  end if;

  end book_avl;

  Start

  insert into book_count values(p_mem_id,p_book_id,sysdate,sysdate+v_avl_days,v_return_date);

  Update book_availability set book_id = p_book_id, avl_now_flag = 'n', avl_date is to_date (sysdate + v_avl_days,' dd-mm-yyyy ""), issued_to = v_mem_type, user_id = p_user_id where mem_id = p_mem_id;

  commit;

  dbms_output.put_line ("' the book published successfully");

  end issuebooks;

  Number of function return late_fee (p_mem_id in number, p_extradays series, p_latefee_total number) is

  number of v_extradays;

  number of v_latefee_total;

  number of v_latefee_per_book;

  number of v_latefee_per_day;

  number of v_book_count;

  Start

  Select trunc (sysdate) - v_end_date in v_extradays from book_received where mem_id = p_mem_id and book_id = p_book_id;

  p_extradays: = v_extradays;

  v_latefee_per_book: = v_latefee_per_day * v_extradays;

  v_latefee_total: = v_latefee_per_book * v_book_count;

  p_latefee_total: = v_latefee_total;

  dbms_output.put_line ('The total AMT for not returned books' | p_latefee_total);

  end late_fee;

  end lib_01;

  Hello

  I checked the first 10 lines after the beginning and I could count already several errors.

  Is it an exercise or a real code, you must provide?

  Kind regards.

  Alberto

• Hello. I explained the following error in InDesign. When you open a file that is stored on a server, I get an error message because the file is already open, or don't have sufficient permissions. If I copy to the desktop and open it, I have no p

  Hello. I explained the following error in InDesign. When you open a file that is stored on a server, I get an error message because the file is already open, or don't have sufficient permissions. If I copy to the desktop and open it, I have no problem. Can someone help me? Thank you.

  Is there a file .idlk remaining on the server which is not removed properly?

• Why use read. A long time to read the date type in the following code?

  Why use the read. Long to read the type of date in the following code?
  Thank you
  

  public void readExternal(PofReader reader)
  throws IOException
  {
  setFirstName(reader.readString(0));
  setLastName(reader.readString(1));
  setHomeAddress((Address) reader.readObject(2));
  setWorkAddress((Address) reader.readObject(3));
  setTelephoneNumbers(reader.readMap(4, null));
  setBirthDate(new Date(reader.readLong(5)));
  }

  Published by: qkc on August 25, 2009 20:15

  qkc wrote:
  Why use the read. Long to read the type of date in the following code?
  Thank you

  public void readExternal(PofReader reader)
  throws IOException
  {
  setFirstName(reader.readString(0));
  setLastName(reader.readString(1));
  setHomeAddress((Address) reader.readObject(2));
  setWorkAddress((Address) reader.readObject(3));
  setTelephoneNumbers(reader.readMap(4, null));
  setBirthDate(new Date(reader.readLong(5)));
  }
  

  Published by: qkc on August 25, 2009 20:15

  Because the Java Date instances are stored internally as long (millisecs elapsed since the beginning of the year 1970), so to represent a Java Date, more efficient storage is just to store the long number returned by getTime() and use this long to build Date.

  In addition, historically (with, for example, ExternalizableLite), there is no out-of-the-box support for attributes Date precisely, they were treated as simple objects (store lots of unnecessary data).

  Best regards

  Robert

• Why all numbers use symbol 'L' in the following code?

  Why all numbers use symbol 'L' in the following code?
  Thank you
  

  public static final long MILLIS_IN_YEAR = 1000L * 60L * 60L * 24L * 365L

  qkc wrote:
  Why all numbers use symbol 'L' in the following code?
  Thank you

  public static final long MILLIS_IN_YEAR = 1000L * 60L * 60L * 24L * 365L
  

  Java language rules: an L after a literal integer in Java indicates that this constant should be kept as a long (64 bit signed) instead of int (32 bits signed).

  If you have not used to that, all the numbers on the line would be treated as integers (ints) (32 bit) and multiplier with an int int translates an int even if you want to store in a long.

  Since int cannot fully represent the full product (about 31.5 billion) as it is greater than Integer.MAX_VALUE (2 billion), so if you have not used the long as operands for multiplication, you finally get an incorrect value in MILLIS_IN_YEAR because the last multiplication would cause an overrun.

  Best regards

  Robert

• What the symbol! stand for in the following code?

  What the symbol *! * rest in the following code? What is the SYSTEM ?
  
  <! DOCTYPE SYSTEM report-group "report - group.dtd" >
  
  Published by: user11337968 on July 3, 2009 16:53

  It's only the symbols of Extensible Markup Language (XML). This is the format for the configuration .xml files. Knowing that enough.