need help in writing a little java code

Similar Questions

• Need help finding a MBean via Java code

  I'm reading the bea.jrockit.management:type mbean = Memory, but nothing I've tried works. Y at - it a special to access this value tip (I'm trying to find the physical RAM installed on the hardware)? I see him just day to Mission control, but I can't get the code to work.
  
  I tried

   
  env.put(JMXConnectorFactory.PROTOCOL_PROVIDER_PACKAGES, "weblogic.management.remote");
  env.put("jmx.remote.x.request.waiting.timeout", new Long(10000));
  
  serviceURL = new JMXServiceURL("t3", serverName, port, "/jndi/" + "weblogic.management.mbeanservers.domainruntime");
  connector = JMXConnectorFactory.connect(serviceURL, env);
  connection = connector.getMBeanServerConnection();
  result = connection.getAttribute(new ObjectName("bea.jrockit.management:Location=" + System.getProperty("weblogic.Name") + ",type=Memory"), "TotalPhysicalMemory");

  and...

  serviceURL2 = new JMXServiceURL("t3", serverName, port, "/jndi/" + "weblogic.management.mbeanservers.runtime");
  connector2 = JMXConnectorFactory.connect(serviceURL2, env);
  connection2 = connector2.getMBeanServerConnection();
  result = connection2.getAttribute(new ObjectName("bea.jrockit.management:type=Memory"), "TotalPhysicalMemory");

  The first method works for the "java.lang:Location = myLocation, type = OperatingSystem"), "TotalPhysicalMemorySize", but this value does not correspond to the actual amount of physical memory (shows 4 GB for me instead of 8 GB).
  
  Thank you.
  -Bill

  Hi Bill,

  You must register to the JRockitConsoleBean before you can programmatically access the MBeans. This is what happens when you run the Mission control.

  R28 the MBean is called oracle.jrockit.management:type = JRockitConsole and for R27 is bea.jrockit.management:type = JRockitConsole.

  For example

  Connection2.getMBeanInfo (new ObjectName("bea.jrockit.management:type=JRockitConsole"));)
  result = connection2.getAttribute (new ObjectName ("bea.jrockit.management:type = Memory"), "TotalPhysicalMemory);

  Best regards
  Erik

• I need help to update my computer (error code: 80070424)

  original title: I need help to update my computer

  I could not update my computer for more than a year. I searched for the cause of this and have been unsuccessful. Whenever I click search for updates, it gives me errors, and then I click on get help with errors and tried troubleshooting but have not been able to solve my problem. Lately, he has been interfering with the update or install new programs. Now I can't update my Itunes or Ipod. I can't upgrade to Windows 7. I can ' t use microsft word because everytime I try to install or update these things, it won't let me. I've been putting off not to worry so much about the updates, but they have reached a limit, when my computer became difficult to use. The error code is 80070424.

  Restore the system to factory settings.  Install applications from their media keys/serial numbers and product, that you put aside.  Restore your data from backup.

• need help with windows update C8000F1A error code

  I need help with an error code that is given to my PC when I try to put up-to-date

  Hello

  1. don't you make recent changes?

  2. This does happen with any special updates or all updates?

  I suggest you to follow these steps and check if that helps:

  Method 1:

  If you have installed a security software on the computer, then I suggest you try to disable temporary and check to see if the same problem happens. Make sure that you enable security software back once the diagnosis is made to prevent the computer from virus attacks.
  http://Windows.Microsoft.com/en-us/Windows-Vista/disable-antivirus-software

  Method 2:
  I suggest you follow the steps in the link below and check if it helps:
  http://Windows.Microsoft.com/en-us/Windows-Vista/troubleshoot-problems-with-installing-updates

  It will be useful.

• help in writing a little code pl/sql

  Hi all
  I want to write a script for example I 3 Colum let A, B, C documents are already in the database now, I want my script to check the values of Colum C must equal (A, B) as A - B = C if she even noting do with C another thing she updates C with the value of A - B please help

  then you can make a little change with the rest of the code above.

  create or replace procedure test asbegin for m in (select * from t) loop  if m.C=m.A and m.C=m.B then   null;  else   update t set C=m.A-m.B where id=m.id;  end if; end loop;end;
  

  Khurram

• Need help with the coding of java base

  Hi I am new to java, please help me!

  Here the topic requires:

  

  • display the result of c1.contain (3.3)
  • C1. Contains (new Circle2D (4, 5, 8.5))
  • C1. Overlaps (new Circle2D (3, 5, 0.3))

  Here's my question:

  the circle contains must have (x, y, and radius)

  Why the contain (3.3) still work when there is no RADIUS?

  My code is correct?

  It's my circle2D code:

  public class Circle2D {}

  The center of the circle

  Private double x;

  Private double y;

  The RADIUS

  RADIUS double private;

  Constructor without parameters

  public Circle2D() {}

  This (0, 0, 3);

  }

  Constructor with x, y, and radius

  public Circle2D (double x, double y, double radius) {}

  This.x = x;

  This.y = y;

  This.RADIUS = RADIUS;

  }

  Get the zone method

  {} public double getArea()

  Return Math.PI * RADIUS * RADIUS;

  }

  Get the perimeter

  {} public double getPerimeter()

  return 2 * Math.PI * RADIUS;

  }

  Check if the point (X, Y) is in the circle

  public boolean contains (double X, double Y) {}

  If (Math.sqrt ((x-X) * (x - X) + (y - Y) * (y - Y)) < radius) {}

  Returns true;

  } else {}

  Returns false;

  }

  }

  Check if the new circle is the circle

  public boolean contains {(Circle2D circle)

  If (Math.sqrt ((x-circle.x) * (x - circle.x) + (y - circle.y) * (y - circle.y)) + circle.radius < radius) {}

  Returns true;

  } else {}

  Returns false;

  }

  }

  Check if the new circle overlaps the circle

  public boolean overlaps (circle Circle2D) {}

  If (Math.sqrt ((x-circle.x) * (x - circle.x) + (y - circle.y) * (y - circle.y)) + circle.radius > RADIUS)

  (& & Math.sqrt ((x-circle.x) * (x - circle.x) + (y - circle.y) * (y - circle.y)) + circle.radius < RADIUS + circle.radius) {}

  Returns true;

  } else {}

  Returns false;

  }

  }

  public static main (String [] args) {} Sub

  Circle2D c1 = new Circle2D (2, 2, 5.5);

  System.out.println (C1. Contains (3.3));

  }

  }

  I think you're confused by the abstraction.

  C1 is a Circle, a figure of dimension 2 covering an area. That's why he needs a RADIUS.

  The contains(x,y) of the method in the class circle valid a Point which is a figure without any Dimension. That is why the method does not have a RADIUS.

  Good bye

  DPT

• [Need help] Command execution error: null java.lang.ClassCastException - HQAPI

  Hello

  I need your support on the following error, I got from hqapi when I try to «./hqapi.sh alertdefinition sync. My order is:

  # cat ad10100.xml

  <? XML version = "1.0" encoding = "UTF-8" standalone = "yes"? >
  < AlertDefinitionResponse >
  Success of < status > < / status >
  < AlertDefinition mtime = ctime "1331204852666" = "1331204068642" id = "10100" name = "Fs [/] ok" description = "Filesystem sotto soglia critica" priority = "2" enabled = "true" active = "true" frequency = "0" count = "0" range = "0" willRecover = "false" notifyFiltered = "false" controlFiltered = "false" >
  < resource id = "10910" name = "/ dev/map/VolGroup00-LogVol00 of HR-client Linux file system mounted on / (local/ext3)" / >
  < AlertCondition required = "true" type = "1" thresholdValue = "50.0" thresholdComparator = "" & lt; "thresholdMetric ="Use %"/ >"
  < AlertAction id = "10101" className="org.hyperic.hq.measurement.action.MetricAlertAction"/ >
  < / AlertDefinition >
  < / AlertDefinitionResponse >

  # cat ad10100.xml | SH hqapi.sh alertdefinition sync

  Command execution error: null
  java.lang.ClassCastException
  at java.lang.Class.cast(Class.java:2990)
  at org.hyperic.hq.hqapi1.XmlUtil.deserialize(XmlUtil.java:64)
  at org.hyperic.hq.hqapi1.tools.AlertDefinitionCommand.sync(AlertDefinitionCommand.java:439)
  at org.hyperic.hq.hqapi1.tools.AlertDefinitionCommand.handleCommand(AlertDefinitionCommand.java:152)
  at org.hyperic.hq.hqapi1.tools.Shell.dispatchCommand(Shell.java:245)
  at org.hyperic.hq.hqapi1.tools.Shell.main(Shell.java:260)

  I have tested the following workaround but unsuccessfully:

  -try d'utiliser./hqapi.sh instead hqapi.sh sh

  -try to use different java bin (mine is/usr/java/default jdk6_u31), I tried /opt/hyperic/server-4.5.3/jre/bin/

  -Try sh hqapi.sh alertdefinition sync - file = ad10100.xml

  -try to change the XML, removal of State <>success < / status >

  HQAPI version: hqapi1-client - 4.3.0

  Hyperic HQ version: 4.5.3 - GA

  I need to synchronize alertdefinitions based on XML files please help me around this error.

  Thank you very much.

  Claudio

  Trying some updates for automatic alert via the script API definition, I met this problem as well. No matter what I did, it seemed that this class cast exception would be thrown. I downloaded the Github source HQAPI and started searching. I found that the error was in the call to the XmlUtils.deserialize method, which has invoked a JAXBContext to select the class of the object to return, after analysis of the XML. The code that calls the method waits get an object that can be cast to the type AlertDefinitionsResponse, but he returned to an object that must be cast to type AlertDefinitionResponse.

  After a bit of investigation, I realized that JAXB is the context of the node root XML data. Because the root node is AlertDefinitionResponse, he always returned an object of this type, instead of the expected AlertDefinitionsResponse type. Currently, the only way I found to get around this problem is to change the node root to AlertDefinitionsResponse. So, sync-able XML would look like the following, based on XML of the original poster.

  
  
       Success
      
          
          
          
      
  

  I raise a question on the Github repository so that officials are aware of this problem.

  EDIT: The problem has been discussed here

• Need help in writing the SQL CASE or DECODE statement

  Hi experts,
  
  I need to write a SQL select order_num, cntry_cde, prod_id and Qty by joining order_num on PROD_ORDER and PROD_ORDER_TXT.
  
  Here is my sample data
  
  PROD ORDER_
  order_num Prod_id Qty cntry_cde
  100 US A1 5
  101 US 10 A2
  102 IN A3 4
  103 TO THE A4 9
  104. IN A5 3
  
  PROD ORDER_TXT_
  cntry_cde Prod_id order_num
  100 US A1
  101 US A2
  102 NZ A3
  103 TO THE A4
  A5 104
  
  Here's the requirement,
  
  (1) if the cntry_cde in PROD_ORDER is the same as cntry_cde in PROD_ORDER_TXT then select PROD_ORDER.cntry_cde (orders 100, 101, 103)
  (2) if they are different, choose PROD_ORDER_TXT (order 102, to THE NZ <>) country code
  (3) if they are different and PROD_ORDER_TXT.cntry_cde is null, I can't use it like cntry_cde in my report (order 104). It happenend just because of bad data to the source.
  I can't avoid it. Then just use the cntry_cde of PROD_ORDER
  
  Expected results
  100 US A1 5
  101 US 10 A2
  102 NZ A3 4 - changed in NZ
  103 TO THE A4 9
  104. IN A5 3 - IN retained as PROD_ORDER_TXT.cntry_cde is null
  
  
  instructions for creation and insertion of sample table are lower than
  
  create the table prod_order
  (number of order_num,
  cntry_cde CHAR (2),
  prod_id VARCHAR2 (6).
  number of quantity)
  
  create the table prod_order_txt
  (number of order_num,
  cntry_cde CHAR (2),
  prod_id VARCHAR2 (6))
  
  insert into prod_order values (100, 'WE', 'A1', 5);
  insert into prod_order values (101, 'WE', 'A2', 1);
  insert into prod_order values (102, ' to THE ', 'A3', 4);
  insert into prod_order values (103, ' to THE ', 'A4', 9);
  insert into prod_order values (104, 'IN', 'A5', 3);
  
  
  
  insert into prod_order_txt values (100, 'WE', 'A1');
  insert into prod_order_txt values (101, 'WE', 'A2');
  insert into prod_order_txt values (102, 'NZ', 'A3');
  insert into prod_order_txt values (103, ' to THE ', 'A4');
  insert into prod_order_txt values (104, 'A5', NULL);
  
  commit;
  
  Thank you for your help in advance
  
  Published by: manon March 28, 2012 13:39
  

• Need help to use InputStream on my code

  Hello world
  
  I'm working on JDev11g U2 with ADFRC
  
  I use af:inputFile to download read my file. to do this, I'm getting my InputStream files on af valueChangeListener: inputFile.
  
  Now for the first time when I click on a button to read the content of this IS then it works fine. I press the same button again without changing my af file: InputFile, I'm getting InputStream as null, coz it closes to the EOF.
  
  Now the problem is I cannot reopen, cannot make a clone or can not use (int) mark with this...
  
  So I used a method of apache POI POIFSFileSystem.createNonClosingInputStream (InputStream is) wrapper to wrap my IS.
  
  According to them, it should really solve my problem, but it does not work...
  

  InputStream wrappedStream = POIFSFileSystem.createNonClosingInputStream(is); <-------- IS read here
  HSSFWorkbook wb = new HSSFWorkbook(wrappedStream);
  is.reset(); <-------- getting null here as i already read above
  doSomethingElse(is);

  now, tell me how can I implement this code too. Once I read my IS, it evaluates to null. so, how I reset it.
  
  Second way I did that convert my IS as a String so that I can wear for any number. usage. Coz, I use my IS to convert my file to XML, CSV, XLS to XML
  
  by using this method:

      public static String convertInputStreamToString(InputStream is) throws Exception {
          BufferedReader reader = new BufferedReader(new InputStreamReader(is));
          StringBuilder sb = new StringBuilder();
          String line = null;
          while ((line = reader.readLine()) != null) {
              sb.append(line + "\n");
          }
          is.close();
          return sb.toString();
      }

  so in the case of CSV and XML, it's way to work, but in the case of XLS, I do not hear from the converted string.
  
  I use this method to retrieve my IS of the String-
  

  for XML - 
              InputStream useIS =
                          new ByteArrayInputStream(inputStream.getBytes("UTF-8"));
  
  for CSV - (inputStream is String of my IS)
              BufferedReader csvReader;
              csvReader = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(inputStream.getBytes("UTF-8"))));
  
  for XLS - 
              POIFSFileSystem myFileSystem =
                  new POIFSFileSystem(new ByteArrayInputStream(inputStream.getBytes("UTF-8")));
              //InputStream inStr = new ByteArrayInputStream(inputStream.getBytes("UTF-8"));
              HSSFWorkbook workbook = new HSSFWorkbook(myFileSystem);

  Can now someone help me to find the right way to use my IS again and again.
  
  Thank you
  FIZZZ...

  OK, the problem is that you cannot reset the stream. So when the POI class does not help, you're out of luck.
  I don't get you second statement that you are not allowed to create temporary files. It is a normal procedure. Think of a file with a size of > 100Meg. This file can be processed in memory. The only chance you have is to put in a temporary file and use it.
  If you use File.createTempFile (...) the file is created in the tmp folder. Delete it after that you don't need any longer.

  Another way to handle this is to put the file intpo a blob in the comic book and read from there. It is more work for you to do, but he does not object in the file system.

  Timo

• Need help with writing a query

  Hi all

  Can someone help please write a query for the following scenario

  Data in the table are in the format below

  student_name	Sub1	sub1_marks	Sub2	sub2_marks	SUB3	sub3_marks
  John	Math	90	Science	80	lang	85

  Need to write a query to get it as

  student_name	Object	brands of
  John	Math	90
  John	Science	80
  John	lang	85

  
  Thank you

  I'm looking so unpivoting the mulitple columns option is there. how it will be used

  I certainly learned something new today.

  create table student_marks(
    student_name varchar2(20),
    sub1 varchar2(20),
    sub1_marks number,
    sub2 varchar2(20),
    sub2_marks number,
    sub3 varchar2(20),
    sub3_marks number
  )
  ;
  insert into student_marks values(
    'john',
    'math',
    90,
    'science',
    80,
    'lang',
    85
  )
  ;
  select
    student_name, sub subject, marks
  from student_marks
  unpivot include nulls (
    (sub, marks)
    for subject in (
      (sub1, sub1_marks),
      (sub2, sub2_marks),
      (sub3, sub3_marks)
      )
  )
  ;
  drop table student_marks purge
  ;
  
  table STUDENT_MARKS created.
  1 rows inserted.
  STUDENT_NAME         SUBJECT                   MARKS
  -------------------- -------------------- ----------
  john                 math                         90
  john                 science                      80
  john                 lang                         85 
  
  table STUDENT_MARKS dropped.
  

• Need help add captcha on my form code.

  Hi guys,.

  I need assistance with a captcha code in my form.

  I tried to read through recaptcha tutorials etc. but I don't know where to go with it.

  Here is the code for my form;

  < form method = "POST" name = 'contact form' action = "contact-form - handler.php" >

  < p >

  < label for = "name" > your name: < / label > < br >

  < input type = "text" name = "name" >

  < /p >

  < p >

  < label for 'e-mail address' = > E-mail address: < / label > < br >

  < input type = "text" name = "email" > < br >

  < /p >

  < p >

  < label for = "e-mail address" > phone number: < / label > < br >

  < input type = "text" name = "phone" > < br >

  < /p >

  < p >

  < label for 'message' = > Message: < / label > < br >

  < textarea = 'message' name > < / textarea >

  < /p >

  < input type = "submit" value = "Submit" > < br >

  < / make >

  
  

  Hi Luke,.

  CAPTCHAs cause form several failures of deposit than successes.  They should be used only as a last resort because these enigmatic symbols are often difficult to read and not easy to use.

  If you want to outsmart spam robots without penalizing humans, use a pot of honey or an input field hidden in your form.  Spambots are stupid and will try to fill any form field they encounter whether hidden or not.   If the hidden field is filled, your form processing script can be programmed to give up the presentation.   Humans never see it & spambots are stopped dead in their tracks.  This method is very reliable and easy to use.

  Nancy O.

• Need help fixing windows update 80073712 error code.

  Whenever I try to check for any update I get error code 80073712. I am running windows vista as my operating system. Is there anyway that I can fix this?

  http://support.Microsoft.com/kb/957310

  Above Microsoft link has 3 methods ot try to fix your error Code >

  Method 1: Run (Checksur.exe) system update readiness tool

  1. Download and run the system update readiness tool. This tool runs an ad hoc analysis of inconsistencies that might prevent future maintenance operations.

     For more information about how to download and run the Checksur.exe tool, click on the number below to view the article in the Microsoft Knowledge Base:

     947821 (http://support.microsoft.com/kb/947821/) Description of the update readiness tool for Windows Vista system
  2. Try to install updates again.

  Note After running the tool, the Checksur.log file is stored in the following location:

  %SystemRoot%\Logs\CBS

  In a default installation of Windows Vista, SystemRoot is the Windows directory.

  If this method does not resolve the problem, go to method 2.

  Back to top

  Method 2: Install Windows Vista Service Pack 1 if you have not yet installed Windows Vista Service Pack 1 (SP1), visit the Microsoft Download Center and then download and install Service Pack 1. To do this, follow these steps:

  1. Quit all programs, and then click on the following link:
     http://www.Microsoft.com/downloads/details.aspx?FamilyId=f559842a-9c9b-4579-b64a-09146a0ba746&displaylang=en (http://www.microsoft.com/downloads/details.aspx?FamilyID=f559842a-9c9b-4579-b64a-09146a0ba746&DisplayLang=en)

     Note Click the option to download on the download page, click Save, and then save the download to your desktop. When the download process is complete, click run to install the SP1.

  2. Restart the computer.
  3. Try to download the updates again.

  If you can't always install updates, go to method 3.

  Back to top

  Method 3: Perform a repair of Windows Vista installation when you perform a repair installation, which restores the current installation of Windows Vista to the version on the installation DVD. This requires you to reinstall all updates that do not appear in this version of Windows Vista.

  To perform a repair of Windows Vista installation, follow these steps:

  1. Restart the computer.
  2. Insert the Windows Vista DVD into the DVD drive of the computer.

     Note If Windows does not automatically detect the DVD, click Start, type : \setup.exe in the Search box, and then click configuration in the list programs. Then click on install now.

  3. Click connect to get the latest updates for installation (recommended).
  4. Insert the product key if you are prompted to do so.
  5. Click to accept the Microsoft software license agreement.
  6. On the screen which type of installation you want , click upgrade.
  7. Once the installation is complete, restart the computer, and then try again to install updates.

  Mick Murphy - Microsoft partner

• Need help resolution Windows 7 update error code 80242016 for update KB3185330 * IMPORTANT UPDATE

  I installed 5 updates to windows that have been brought to my attention.  4 5 updates were installed successfully.  But 1 updates that is marked "Important" CANNOT install.  The update is "KB3185330", it says it's an update to "October 2016 cumulative monthly security for Windows 7 x 64 based systems quality".  Can someone please help me to rectify this & this update installed successfully.  I never had problems before installing an update 'important '.  I am very concerned because I'm not a person tech savy, but I guess that if the update said '' significant '' than he SHOULD CERTAINLY be installed.  I kept all of my updates of Windows 7 since I got my computer.  I did NOT any changes to my computer before trying to update & as I said before, 4 other updates have been "successful".  I would appreciate the help of anyone who is well informed about it and can give me EASY instructions on what went wrong AND how to fix it.  Thank you in advance.

  Hello

  To address your concerns about the error message the update is not applicable to your computer , you can visit this link and follow the steps carefully.

  Let us know how it goes.

• Need help in writing request

  Hello

  I need.

  I have me rank high 6 every time some contributions. as shown below.

  ID	Rank
  12343	1
  6356	2
  346	3
  767	4
  988	5
  343	6

  If the entry returns only 5 rows, I need data to be looked at like that.

  ID	Rank
  12343	1
  6356	2
  346	3
  767	4
  988	5
  	6

  I don't know what will be the number of rows of the query. so, every time, if I shoot a uery should return the top 6 lines and if it returns less than 6, then it should be replaced by an empty string to the line count six.

  Something like that

  with gen_6_row
  as
  (
    select level rno from dual connect by level <= 6
  )
  , your_query
  (
  
  )
  select a.rno, b.*
    from gen_6_row a
    left join
         your_query b
      on a.rno = b.rank;
  

• Hello [need help on 1 and 2 error codes]

  Hello

  I have a code error 1 or 2 that is displayed when the update of late July 2015

  has anyone there the same problem?

  [Title edited for clarity... MOD]

  Code 1 discussion https://forums.adobe.com/thread/1434528

  Code 2 https://forums.adobe.com/thread/1595922