Please help -- Apps Interview questions.

My cloning is completed successfully but my apps listener is not getting up?? What is the problem ?
I am applying a patch , can I open another session in another node and run adpatch?No
When database is up, listener is up. Listener.ora and tnsnames.ora both are configured
properly, still client is not being able to make a connection to the database. What may be
the possible issues?
How would take the forms trace?
Can C driver be applied when database is down?
Thanks

Hi,
My cloning is completed successfully but my apps listener is not getting up?? What is the problem ?Check the listener log file.
I am applying a patch , can I open another session in another node and run adpatch?NoNo
When database is up, listener is up. Listener.ora and tnsnames.ora both are configured
properly, still client is not being able to make a connection to the database. What may be
the possible issues?What is the error message? Check the connectivity between between the client machines and the database server first and make sure you can ping the server.
How would take the forms trace?Note: 296559.1 - FAQ: Common Tracing Techniques within the Oracle Applications 11i/R12
Can C driver be applied when database is down?No.
Thanks,
Hussein

Similar Messages

Hi SAP FI/CO GURUS ...... PLEASE GIVE ME INTERVIEW QUESTIONS ON SAP FI/CO

Hi FI/CO gurus
I require your great help to get my brother into SAP House. He had done his FI/CO training and he is trying as fresher into SAP. So i request you to please give me interview questions on SAP FI/CO in topic wise. The reason i am asking here in this forum is, a lot of gurus who are having great experience are there in this group. if i get help from these gurus, that will be great help to my brother into get into SAP FI/CO.
So i request you to please send me interview questions on SAP FI and CO in topic wise. Awaiting for your reply.
Regards
Raj

Hi,
Please find below few questions on FI. I think those are very useful for intervew
SAF FI Technical Interview Questions 1
1. Tell me about FI Organizational structure?
Ans:     Client
               |
      Operating Concern
               |
Controlling area1       Controlling Area 2
         |
Co. Code 1 Co. Code 2
    |
Bus area 1 Bus area2 Bus Area3 Bus Area 4
2. How many Normal and Special periods will be there in fiscal year, why do u use special periods?
Ans: 12 Normal posting period and 4 special periods are in the fiscal year which can be used for posting tax and audit adjustments to a closed fiscal year.
3.Where do you open and close periods?
Ans: PPV is used to open and close the periods based on a/c types considering GL Accounts. Tr. Code. OB52.
4.What do you enter in Company code Global settings?
Ans: 4 digit Alphanumeric key.
Name of the company
City
Country
Currency
Language
Address
5.What is document type, and what does it control? Examples.
Ans: Document type is nothing vouchers containing line items. Several business transac! tions can be identified within a particular document type.
It controls the document number ranges.
It controls the Header part of document
IT controls the line item level of the document
Helps filing of physical document
6. What is posting key and what does it control?
Ans: These are special classification keys. Two character numerical key it controls the entry of line items.
Posting key determines Account type, Debit/credit posting, Field status of transaction.
7. What is field status group, what does it control?
Ans: FSG is mandatory field in ! GL Creation. You use this field to define which fields are displayed when you post business transactions to a G/L account.
A field may have one of the following statuses.
- Suppressed
- Display
- Optional
- Required
8. What is chart of account and how many charts of accounts can be assigned to a company?
Ans: Chart of account is a list of all G/L accounts used by one or several company codes.
For each G/L account, the chart of accounts contains the account number, account name, and the information that controls how an account functions and how a G/L account is created in a Company code.
You have to assign a chart of accounts to each company code. This chart of accounts is the Operating chart of accounts and is used for the daily postings in this company code.
You have the following options when using multiple company codes.
You can use the same chart of accounts for all company codes
If the company codes all have the same requirements for the chart of accounts set up, assign all of the individual company codes to the same chart of accounts. This could be the case if all company codes are in the same country.
In addition to the operating chart of accounts, you can use two additional charts of accounts If the individual company codes need different charts of accounts, you can assign up to two charts of accounts in addition to the operating chart of accounts. This could be the case if company codes lie in multiple countries.
The use of different charts of accounts has no effect on the balance sheet and profit and loss statement. When creating the balance sheet or the profit and loss statement, you can choose whether to balance the co! mpany codes which use different charts of accounts together or separately.
9. What does definition of a chart of account contains?
Ans: chart of account key
Name
Maintenance language
Length of the GL Account Number
Controlling Integration
Group chart of accounts (Consolidation)
Block Indicator
10. Can one COA be assigned to several companies?
Ans: yes. One COA can be assigned to several companies.
11) What is account group and what does it control?
Ans: Account group determines which fields you can configure on the G/L master record. It is necessary to have at least two one for B/S and another one for P&L a/c.
It controls the Number ranges of GL A/C.
The status of fields of the master record of GL belongs to company code area.
12) What is reconciliation account; can you directly enter documents in that a/c?
Ans: When you p! ost items to a subsidiary ledger, the system automatically posts the same data to the general ledger. Each subsidiary ledger has one or more reconciliation accounts in the general ledger.
We cant use reconciliation account for direct postings.
13) How do you control field status of GL master records and from where do you control!
Ans: Field status variant is maintained all FSGs.
14) What are the segments of GL master record?
Ans:
- COA Segment
A/C group
Nature of account
Short text
GL a/c long text
Trading partner
Group Account Number
- Company code segment
Account currency
Tax
Reconciliation a/c for a/c type
OIM,LID,FSG.
15) What does Field status group assigned to a GL master record controls?
Ans: It controls the account assignments that are made to the account. Specifically the field status group controls whether postings to cost centers, internal orders, profitability segments and so on are required, not allowed (suppressed), or optional.
16) What is Country and operational chart of account? Why do you use group chart of account?
Ans: Operational chart of account Day to day activities It is mandatory.
Country COA Its used for legal specific requirement of each country. Its additional and optional.
Group COA used for consolidation of Company codes. This is for group consolidation purpose.
17) What are all the segments in a Customer/Vendor master record?
Ans: Segments in Customer           Segments in Vendor
-      General Data segment            General data segment
-      Company code segment         Company code segment
-      Sales area segment                 Purchasing organization Segment
18) What is open line item management? What do you mean by clearing open line items?
Ans: Open item management is further reconciliation function. OIM allows you to display the open and cleared items and amounts in an account. OIM should be used if an offsetting entry is made for every line item posted in the account. The a/c is reconciled and cleared against another account. Ex. Salary clearing account and GR/IR Clearing account.
19) What is residual payment and part payment?
Ans: Residual payment it clears original invoice with incoming amount and create new line item for remaining outstanding amount.
Partial payment it leaves the original invoice amount and creates new
line item for incoming amount.
20) What is internal and external number ranges?
Ans: Internal Number Ranges: Doc. No will be provided by the system automatically in serial order allotting the next available progressive number. The number must be in numerical.
External Number ranges: Doc. No will be given manually by the end user. System will not lock no automatically in this case. User can pick the number randomly. Number may be an alpha numeric.

Please share UCS interview questions and answers

Please share UCS interview questions and answers

Since last 4+ year I am working on CISCO UCS, VMware Administration tasks on reputed company and even I have attended DCUCI 4.0 training on almost 4 year back.
Now I am looking for job change on UCS, VMware and VBLOCK Architecture position so if any related documents please share with me.

Please send me interview questions or any links which provides same.

Hi,
Please send me interview questions or any links which provides same.
Regards,
Gurprit Bhatia

Hi,
Please send me interview questions or any links which provides same.
Regards,
Gurprit Bhatia

Please help, apps continue to reappear when I sync multiple devices after I permantaly deleted from itunes

PLease help: apps continue to reappear after I permantaly delete them when I sync multiple devices.. How do I fix this?
I have tried everything..

The Apple Support Communities are an international user to user technical support forum. As a man from Mexico, Spanish is my native tongue. I do not speak English very well, however, I do write in English with the aid of the Mac OS X spelling and grammar checks. I also live in a culture perhaps very very different from your own. When offering advice in the ASC, my comments are not meant to be anything more than helpful and certainly not to be taken as insults.
The only way to permanently remove an app is to delete the app from iTunes on your computer and delete the app from every device that has the app. If you don't, then when the devices are synced to the computer it will be transfered back to the iTunes library on the computer from the device.

Please help apps. Crashing on 64 gb 4 gen touch. Run 5.0.1 I know the temp fix of logging in but want to fix report shows "low mmemory crash" which is not true

Please help apps. Crashing on 64 gb 4 gen touch. Run 5.0.1 I know the temp fix of logging in but want to fix report shows "low mmemory crash" which is not true

Why do you say "not true"? The 4G iPod only has 256 MB of memory and out of memoty errors are not uncommon with iOS 5.
memory is different that the 8, 32 ir 64 GB or storage on the 4G iPods.
To resolve double click the Home button and delete the apps from the mulitasking dock that you are not using and the power off and back on the iPod. You have to do that periodically.

Please help me jmf question

Hi i want to create custom data source as i have read in different post and also on sun site
I tried to create one one for my self,
where am getting stream from tcp port.
before that i test the data by using socket programming, i saved the input stream into file and played and its working fine and then i transfer that file using avtransmiter2.java and it work fine again its mean it confirm that the data i am getting from skype is working fine . now my question is how to get that input stream and instead of saving to the file i can play it using jmf player or send it on rtp session. i read different post how to create custom data source from inputstreams but have not work for me ... i modified a user code posted http://archives.java.sun.com/cgi-bin/wa?A2=ind0106&L=jmf-interest&D=0&P=25865 in that post some body recommanded to implement seekable so i implemented that one als in that code..... below is the code
the error is
LoadInputStream.loadBytes() - realizing player
Exception in thread "JMF thread: com.sun.media.PlaybackEngine@8ed465[ com.sun.media.PlaybackEngine@8ed465 ] ( configureThread)" java.lang.NullPointerException
at com.skype.sample.InputSourceStream.read(InputSourceStream.java:89)
at com.sun.media.parser.BasicPullParser.readBytes(BasicPullParser.java:142)
at com.sun.media.parser.BasicPullParser.readBytes(BasicPullParser.java:114)
at com.sun.media.parser.BasicPullParser.readInt(BasicPullParser.java:191)
at com.sun.media.parser.audio.AuParser.readHeader(AuParser.java:109)
at com.sun.media.parser.audio.AuParser.getTracks(AuParser.java:76)
at com.sun.media.BasicSourceModule.doRealize(BasicSourceModule.java:180)
at com.sun.media.PlaybackEngine.doConfigure1(PlaybackEngine.java:229)
at com.sun.media.PlaybackEngine.doConfigure(PlaybackEngine.java:193)
at com.sun.media.ConfigureWorkThread.process(BasicController.java:1370)
at com.sun.media.StateTransitionWorkThread.run(BasicController.java:1339)
i need urgent help to this matter so please help me in that i would be very thankfulll ......
below is the code
skype use the standard audio format
Audio format
File: WAV PCM
Sockets: raw PCM samples
16 KHz mono, 16 bit
Note
import javax.media.*;
import java.io.*;
import java.net.ServerSocket;
import java.net.Socket;
import javax.swing.*;
import java.awt.*;
import java.util.*;
public class LoadInputStream extends JFrame implements ControllerListener {
private Player player;
/** Creates new LoadInputStream */
public LoadInputStream() {
try{
// declaration section:
// declare a server socket and a client socket for the server
// declare an input and an output stream
ServerSocket SkypeServer = null;
DataInputStream is;
Socket clientSocket = null;
try {
SkypeServer = new ServerSocket(4447);
catch (IOException e) {
System.out.println(e);
// Open input stream
clientSocket = SkypeServer.accept();
is = new DataInputStream(clientSocket.getInputStream());
loadBytes(is);
setBounds(100, 100, 300, 300);
setVisible(true);
catch(Exception e){
System.out.println(e);
/* Loads the given byte [] into the MediaPlayer and starts playing it immediately. */
public void loadBytes(InputStream is){
DataSource ds=new DataSource(is);
System.out.println("LoadInputStream.loadBytes() - Creating DataSource (InputStream)");
System.out.println("LoadInputStream.loadBytes() - Creating Player");
try {
player = Manager.createPlayer(ds);
} catch(NoPlayerException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch(IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
System.out.println("LoadInputStream.loadBytes() - Adding Controller Listener");
player.addControllerListener(this);
System.out.println("LoadInputStream.loadBytes() - realizing player");
player.realize();
public static void main(String[] args){
new LoadInputStream();
public void controllerUpdate(javax.media.ControllerEvent e) {
if(e instanceof RealizeCompleteEvent){
System.out.println("Adding visual component");
getContentPane().add(player.getVisualComponent());
player.start();
=============================Datasource==========================================================
import java.io.*;
import java.nio.ByteBuffer;
import javax.media.*;
import javax.media.protocol.*;
public class DataSource extends PullDataSource {
private InputStream is;
private byte [] bytes;
/** Creates new MediaViewerDataSource */
public DataSource(InputStream is) {
super();
this.is = is;
try{
int byteCount = is.available();
bytes = new byte [byteCount];
is.read(bytes);
catch (Exception e){
System.out.println(e);
public PullSourceStream [] getStreams() {
PullSourceStream [] streams = new PullSourceStream [1];
InputSourceStream iss = new InputSourceStream(new ByteArrayInputStream(bytes), new FileTypeDescriptor(ContentDescriptor.RAW_RTP));
streams[0] = iss;
return streams;
public void connect() {}
public void disconnect() {}
public String getContentType() {
return new String("audio.x-wav");
public MediaLocator getLocator() {
return null;
public void initCheck() {}
public void setLocator(MediaLocator source) {}
public void start() {}
public void stop() {}
public Object getControl(String s){
return null;
public Object [] getControls(){
return null;
public Time getDuration(){
return null;
=================================InputStream======================================================
import java.io.InputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import javax.media.protocol.ContentDescriptor;
import javax.media.protocol.PullSourceStream;
import javax.media.protocol.Seekable;
import javax.media.protocol.SourceStream;
* Build a source stream out of an input stream.
* @see DataSource
* @see SourceStream
* @see java.io.InputStream
* @version %I%, %E%.
public
class InputSourceStream implements PullSourceStream, Seekable {
protected InputStream stream;
protected boolean eosReached;
ContentDescriptor contentType;
protected ByteBuffer inputBuffer;
* Construct an <CODE>InputSourceStream</CODE> from an input stream.
* @param s The input stream to build the source stream from.
* @param type The content-type of the source stream.
public InputSourceStream(InputStream s, ContentDescriptor type) {
stream = s;
eosReached = false;
contentType = type;
* Get the content type for this stream.
* @return content descriptor for the stream.
public ContentDescriptor getContentDescriptor() {
return contentType;
* Obtain the content length
* @return content length for this stream.
public long getContentLength() {
return SourceStream.LENGTH_UNKNOWN;
* Query if the next read will block.
* @return true if a read will block.
public boolean willReadBlock() {
if( eosReached == true) {
return true;
} else {
try {
return stream.available() == 0;
} catch (IOException e) {
return true;
* Read a buffer of data.
* @param buffer The buffer to read data into.
* @param offset The offset into the buffer for reading.
* @param length The number of bytes to read.
* @return The number of bytes read or -1 indicating end-of-stream.
public int read(byte[] buffer, int offset, int length) throws IOException {
int bytesRead = stream.read(buffer, offset, length);
if( bytesRead == -1) {
eosReached = true;
inputBuffer.get(buffer,offset,length);
return bytesRead;
* Turn the stream off.
* @exception IOException Thrown if there is a problem closing the stream.
public void close() throws IOException {
stream.close();
* Return if the end of stream has been reached.
* @return true if the end of the stream has been reached.
// $jdr: This is a bug. Need to figure out
// the "correct" way to determine, before a read
// is done, if we're at EOS.
public boolean endOfStream() {
return eosReached;
* Returns an zero length array because no controls
* are supported.
* @return a zero length <code>Object</code> array.
public Object[] getControls() {
return new Object[0];
* Returns <code>null</code> because no controls are implemented.
* @return <code>null</code>.
public Object getControl(String controlName) {
return null;
public long seek(long where) {
try {
inputBuffer.position((int)(where));
return where;
catch (IllegalArgumentException E) {
return this.tell(); // staying at the current position
public long tell() {
return inputBuffer.position();
public void SeekableStream(ByteBuffer byteBuffer) {
inputBuffer = byteBuffer;
this.seek((long)(0)); // set the ByteBuffer to to beginning
public boolean isRandomAccess() {
// TODO Auto-generated method stub
return false;
}

Use a BufferedImage where you draw the other images.
You have to know the size.
For example if the size is (50*50) for each image :
int width =50;
int height = 50;
BufferedImage bufIm = new BufferedImage(width*3,height*3,BufferedImage.TYPE_INT_ARGB);
Graphics gr = bufIm.createGraphics();
int k, j;
Toolkit tk = Toolkit.getDefaultToolkit();
Image imTemp;
for (k = 0; k<3; k++) {
    for (j = 0; j<3; j++) {
        imTemp = tk.getImage(imageNames[k][j]);
        gr.drawImage(imTemp,width*k,height*j, this); // replace this by the Image observer you want (this if you are in a panel for example)
}After that bufIm contains the images as you want and you can paint it on a Graphics.
Denis

Please help me about question security because in my apple id no have for restart or chenge my answer

please help me about answer security question in my apple id because im forgot for my answer, in my apple id no have for change answer, tell me for this please because i love my iphone.
<Email Edited by Host>

You need to ask Apple to reset your security questions; this can be done by clicking here and picking a method, or if your country isn't listed, filling out and submitting this form.
They wouldn't be security questions if they could be bypassed without Apple verifying your identity.
(110899)

SAP TM help , Resume, interview questions and market -appreciate your help

Hey Everybody,
Can any one of you send me the sample resume for Time management? Especially targeting the schemas. I just did HR311 at SAP school. Im looking for the opportunity now days.
Ill also appreciate if any one of you can tell that what kind of interview questions I could face? Sample question will be great.
BTW how is SAP time market?
Thanks,
UA
Email id : [email protected]

Did I ask something difficult? Ill appreciate if you guys shed some light on some scenarios. For example if you have Unions or worked with unions what you do in order to accommodate them. That would be great if you explain with the help of Business examples. What PCRs you have created etc...

Urgent!! Please Help! Security Question!

I have forgotten the answers to my security questions (all three). As i made my Apple ID over 3 years ago, it did not ask me for a recovery e-mail adress. Is there any way i can reset the answers without the e-mail? Please Help!!

Welcome to the Apple Community.
ou should contact AppleCare who will initially try to assist you with a reset email or if unsuccessful will pass you to the security team to reset your security questions for you.
If you are in a region that doesn't have international telephone support try contacting Apple through iTunes Store Support.

Please help app error 523

ive got a bb pearl 9105 and everytime i turn it on its come up with error messages then comes up with a white screen that says error 523. i cant plug it into my comp as the charge port is broken and cant get rid of the error messages to activate the bluetooth.
anyone could any ideas?? ive tried reseting it, taking battery, sim,memory card out and nothings doing the trick...please help...

Hi and Welcome to the Community!
Here is a KB that discusses that error:
KB24395 "Error 523", "App Error 523", or "JVM 523" appears on the BlackBerry smartphone
Unfortunately, the actual remedy may well require connection to your computer...but with the port broken, that won't be possible. So you won't be able to fix this without seeking formal hardware-level support.
If you remain in warranty, you should seek out support via that channel. If you have no warranty, then you would seek out a local (to you) shop with qualified BB hardware technicians who can give you a proper diagnosis and estimate.
Good luck and let us know!
Occam's Razor nearly always applies when troubleshooting technology issues!
If anyone has been helpful to you, please show your appreciation by clicking the button inside of their post. Please click here and read, along with the threads to which it links, for helpful information to guide you as you proceed. I always recommend that you treat your BlackBerry like any other computing device, including using a regular backup schedule...click here for an article with instructions.
Join our BBM Channels
BSCF General Channel
PIN: C0001B7B4 Display/Scan Bar Code
Knowledge Base Updates
PIN: C0005A9AA Display/Scan Bar Code

HELP PLEASE HELP! urgent question with an easy answer!!!!

Hello;
I designed a JFrame game, that uses gif files as ImageIcons. The game works perfectly when I run it from console with the java.exe command.
However; now I want to create a wraparound and run the JFrame in the Internet Explorer from an applet. So I created a new file that extends JApplet; this new file creates a new object of the JFrame-game's class and show()'s it.
And I created an HTM file that runs the JApplet class. However, the internet explorer cannot open the applet because it has trouble loading the pictures (gif files). How can I load the pictures from my applet for my frame???
I dont want to change the Java security file. I just want to make the images accessible by my applet. I cannot use commands like setImage in my applet because my JFrame sets the Images.
(I repeat)My JApplet only invokes an object of my JFrame class and shows it.
PLEASE HELP PLEASE PLEASE..
Thanks..

OK; let me tell you the whole thing. My pictures are in the same folder for sure.
My JFrame reads pictures and assigns JButtons pictures. when I run the frame there are 16 buttons with the same picture, and when I click the buttons there is a listener in the JFrame that changes the pictures. Simply put, the JFrame has no trouble finding and loading the pictures.
Then I created a JApplet as follows:
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
public class MemoryApplet extends JApplet
public void init ()
GameFrame ce = new GameFrame ();
ce.show ();
GameFrame is the name of the JFrame class. Then when I try to open the applet using IE, it gives the following error:
Exception: java.security.AccessControlException: (javax.io.FilePermission back.gif read)
back.gif is one of the gif files that are used in GameFrame

Please Help ! Simple question !

Hi all,
Please anybody tell me why the following line
<input type="text" name="price" value="<%=myBean.getPrice()==0.0?"":myBean.getPrice()%>">gives me the error:
incompatible types for ?: neither is a subtype of the other
second operand: java.lang.String
third operand : float
out.print(myBean.getPrice()==0.0?"":myBean.getPrice());
^
1 error
I am doing this in JSP.
Please help and reply soon.
Please reply soon.................
Waiting for your reply !
Thanks
amitindia

Like annie said, change the method to return a String (doubt if you want this)
or
<%=myBean.getPrice()==0.0?"":""+myBean.getPrice()%>

Pretty please help, Quick newb question...

I have a dell axim x50. I have the jad and jar files. How can I make my application work on the PDA??
I've simulated with toolkit, and such.
Please Please help ><

The act of getting the jar from a pc to the device is called "provisioning"
Some devices let you do this over bluetooth or IR and many others only allow it over http.
I used to use some free web midlet hosting sites but the ones i used have been shut down now. (do a search on the net for "Free Midlet Hosting")
These days i set up a web server on my development machine and then just use the phones wap browser to download the program.

Please, help a newbie: Question about animating expanding containers

Hi All,
Short Version of my Question:
I'm making a media player that needs to have an animation for panels sliding up and down and left and right, and the method I've been using to do this performs far slower than the speed I believe is possible, and required. What is a fast way to make a high performance animation for such an application?
Details:
So far, to do the animation, I've been using JSplitPanes and changing the position of the divider in a loop and calling paintImmediately or paintDirtyRegion like so:
public void animateDividerLocation( JSplitPane j, int to, int direction) {
for(int i=j.getDividerLocation(); i>=to; i-=JUMP_SIZE) {
j.setDividerLocation(i);
j.validate();
j.paintImmediately(0, 0, j.getWidth(), j.getHeight());
The validate and paintImmediately calls have been necessary to see any changes while the loop is going. I.e., if those calls are left out, the components appear to just skip right to where they were supposed to animate to, without having been animated at all.
The animation requirement is pretty simple. Basically, the application looks like it has 3 panels. One on the right, one on the left, and a toolbar at the bottom. The animation just needs to make the panels expand and contract.
Currenly, the animation only gets about, say, 4 frames a second on the 800 MHz Transmeta Crusoe processor, 114 MB Ram, Windows 2000 machine I must use (to approximate the performance of the processor I'll be using, which will run embedded Linux), even though I've taken most of the visible components out of the JPanels during the animation. I don't think this has to do with RAM reaching capacity, as the harddrive light does not light up often. Even if this were the case, the animation goes also goes slow (about 13 frames a second) on my 3 GHz P4 Windows XP if I keeps some JButtons, images etc., inside the JPanels. I get about 50 frames/sec on my 3 GHz P4, if I take most of the JButtons out, as I do for the 800 MHz processor. This is sufficient to animate the panels 400 pixels across the screen at 20 pixels per jump, but it isn't fast or smooth enough to animate across 400 pixels moving at 4 pixel jumps. I know 50 frames/sec is generally considered fast, but in this case, there is hardly anything changing on the screen (hardly any dirty pixels per new frame) and so I'd expect there to be some way to make the animation go much faster and smoother, since I've seen games and other application do much more much faster and much smoother.
I'm hoping someone can suggest a different, faster way to do the animation I require. Perhaps using the JSplitPane trick is not a good idea in terms of performance. Perhaps there are some tricks I can apply to my JSplitPane trick?
I haven't been using any fancy tricks - no double buffering, volatile images, canvas or other animation speed techniques. I haven't ever used any of those things as I'm fairly new to Swing and the 2D API. Actually I've read somewhere that Swing does double buffering without being told to, if I understood what I read. Is doing double buffering explicitly still required? And, if I do need to use double buffering or canvas or volatile images or anything else, I'm not sure how I would apply those techiniques to my problem, since I'm not animating a static image around the screen, but rather a set of containers (JSplitPanes and JPanels, mostly) and components (mostly JButtons) that often get re-adjusted or expanded as they are being animated. Do I need to get the Graphics object of the top container (would that contain the graphics objects for all the contained components?) and then double buffer, volatile image it, do the animation on a canvas, or something like that? Or what?
Thanks you SO much for any help!
Cortar
Related Issues(?) (Secondary concerns):
Although there are only three main panels, the actual number of GUI components I'm using, during the time of animation, is about 20 JPanels/JSplitPanes and 10 JButtons. Among the JPanels and the JSplitPanes, only a few JPanels are set to visible. I, for one, don't think this higher number of components is what is slowing me down, as I've tried taking out some components on my 3GHz machine and it didn't seem to affect performance much, if any. Am I wrong? Will minimizing components be among the necessary steps towards better performance?
Anyhow, the total number of JContainers that the application creates (mostly JPanels) is perhaps less than 100, and the total number of JComponents created (mostly JButtons and ImageIcons) is less than 200. The application somehow manages to use up 50 MBs RAM. Why? Without looking at the code, can anyone offer a FAQ type of answer to this?

You can comment out the lines that add buttons to the panels to see the behavior with empty panels.
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.Timer;
public class DancingPanels
    static GridBagLayout gridbag = new GridBagLayout();
    static Timer timer;
    static int delay = 40;
    static int weightInc = 50;
    static boolean goLeft = false;
    public static void main(String[] args)
        final GridBagConstraints gbc = new GridBagConstraints();
        gbc.weightx = 1.0;
        gbc.weighty = 1.0;
        gbc.fill = gbc.HORIZONTAL;
        final JPanel leftPanel = new JPanel(gridbag);
        leftPanel.setBackground(Color.blue);
        gbc.insets = new Insets(0,30,0,30);
        leftPanel.add(new JButton("1"), gbc);
        leftPanel.add(new JButton("2"), gbc);
        final JPanel rightPanel = new JPanel(gridbag);
        rightPanel.setBackground(Color.yellow);
        gbc.insets = new Insets(30,50,30,50);
        gbc.gridwidth = gbc.REMAINDER;
        rightPanel.add(new JButton("3"), gbc);
        rightPanel.add(new JButton("4"), gbc);
        final JPanel panel = new JPanel(gridbag);
        gbc.fill = gbc.BOTH;
        gbc.insets = new Insets(0,0,0,0);
        gbc.gridwidth = gbc.RELATIVE;
        panel.add(leftPanel, gbc);
        gbc.gridwidth = gbc.REMAINDER;
        panel.add(rightPanel, gbc);
        timer = new Timer(delay, new ActionListener()
                gbc.fill = gbc.BOTH;
                gbc.gridwidth = 1;
            public void actionPerformed(ActionEvent e)
                double[] w = cycleWeights();
                gbc.weightx = w[0];
                gridbag.setConstraints(leftPanel, gbc);
                gbc.weightx = w[1];
                gridbag.setConstraints(rightPanel, gbc);
                panel.revalidate();
                panel.repaint();
        JFrame f = new JFrame("Dancing Panels");
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.getContentPane().add(panel);
        f.setSize(400,300);
        f.setLocation(200,200);
        f.setVisible(true);
        timer.start();
    private static double[] cycleWeights()
        if(goLeft)
            weightInc--;
        else
            weightInc++;
        if(weightInc > 100)
            weightInc = 100;
            goLeft = true;
        if(weightInc < 0)
            weightInc = 0;
            goLeft = false;
        double wLeft = weightInc/ 100.0;
        double wRight = (100 - weightInc)/100.0;
        return new double[]{wLeft, wRight};
}

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