Why can't created an object in the "public static void main(String args[])"

Example:
public Class Exp {
public static void main(String args[])
new Exp2();-------------> To Occur Error
Class Exp2 {
public Exp2()

You can't create an inner class within main, because
it is a static method. Inner classes can only be
created by true class methods.This is not correct. You can create an inner class object in a static method. You just have to specify an outer class object that the inner class object should be created within:
Exp2 exp2 = new Exp().new Exp2();

Similar Messages

Why ..we have to use this ? public static void ? please !

hi ...im ibrahim ..and im new here in java nd new in the forum too ...nd please i would like to know ...why
do we use the method
public static void main (String []args)
i mean why ..static nd why public ..why void ....why main ..nd why (string []args)
...why we use it ...always ....hopefully ..im looking for a very clear answer to this ...issue ..?
please help .......!

public - this is the visibility modifier (it means that the body method can be call by any outside method)
static - the method is a static instance of the class. Not sure what exactly it does though.
void - this is the return type. void means that the method returns nothing.
main - the name of the method. It can be anything.
"public static void main" - this is the main method where upon executing the Java program the Java Virtual Machine will try to locate this method within the specifies class to be executed. This is always the first one to run when executing a Java program. None of this word may be changed or the program cannot be run.

Can I create a cert with the Java API only?

I'm building a client/server app that will use SSL and client certs for authenticating the client to the server. I'd like for each user to be able to create a keypair and an associated self-signed cert that they can provide to the server through some other means, to be included in the server's trust store.
I know how to generate a key pair with an associated self-signed cert via keytool, but I'd prefer to do it directly with the Java APIs. From looking at the Javadocs, I can see how to generate a keypair and how to generate a cert object using an encoded representation of the cert ( e.g. java.security.cert.CertificateFactory.generateCertififcate() ).
But how can I create this encoded representation of the certificate that I need to provide to generateCertificate()? I could do it with keytool and export the cert to a file, but is there no Java API that can accomplish the same thing?
I want to avoid having the user use keytool. Perhaps I can execute the appropriate keytool command from the java code, using Runtime.exec(), but again a pure java API approach would be better. Is there a way to do this all with Java? If not, is executing keytool via Runtime.exec() the best approach?

There is no solution available with the JDK. It's rather deficient wrt certificate management, as java.security.cert.CertificateFactory is a factory that only deals in re-treads. That is, it doesn't really create certs. Rather it converts a DER encoded byte stream into a Java Certificate object.
I found two ways to create a certificate from scratch. The first one is an all Java implementation of what keytool does. The second is to use Runtime.exec(), which you don't want to do.
1. Use BouncyCastle, a free open source cryptography library that you can find here: http://www.bouncycastle.org/ There are examples in the documentation that show you how to do just about anything you want to do. I chose not to use it, because my need was satisfied with a lighter approach, and I didn't want to add a dependency unnecessarily. Also Bouncy Castle requires you to use a distinct version with each version of the JDK. So if I wanted my app to work with JDK 1.4 or later, I would have to actually create three different versions, each bundled with the version of BouncyCastle that matches the version of the target JDK.
2. I created my cert by using Runtime.exec() to invoke the keytool program, which you say you don't want to do. This seemed like a hack to me, so I tried to avoid it; but actually I think it was the better choice for me, and I've been happy with how it works. It may have some backward compatibility issues. I tested it on Windows XP and Mac 10.4.9 with JDK 1.6. Some keytool arguments changed with JDK versions, but I think they maintained backward compatibility. I haven't checked it, and I don't know if I'm using the later or earlier version of the keytool arguments.
Here's my code.
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateException;
import javax.security.auth.x500.X500Principal;
import javax.swing.JOptionPane;
public class CreateCertDemo {
     private static void createKey() throws IOException,
      KeyStoreException, NoSuchAlgorithmException, CertificateException{
     X500Principal principal;
     String storeName = ".keystore";
     String alias = "keyAlias";
     principal = PrincipalInfo.getInstance().getPrincipal();
     String validity = "10000";
     String[] cmd = new String[]{ "keytool", "-genKey", "-alias", alias, "-keyalg", "RSA",
        "-sigalg", "SHA256WithRSA", "-dname", principal.getName(), "-validity",
        validity, "-keypass", "keyPassword", "-keystore",
        storeName, "-storepass", "storePassword"};
     int result = doExecCommand(cmd);
     if (result != 0){
          String msg = "An error occured while trying to generate\n" +
                              "the private key. The error code returned by\n" +
                              "the keytool command was " + result + ".";
          JOptionPane.showMessageDialog(null, msg, "Key Generation Error", JOptionPane.WARNING_MESSAGE);
     KeyStore ks = KeyStore.getInstance(KeyStore.getDefaultType());
     ks.load(new FileInputStream(storeName), "storePassword".toCharArray());
        //return ks from the method if needed
public static int doExecCommand(String[] cmd) throws IOException{
          Runtime r = Runtime.getRuntime();
          Process p = null;
          p = r.exec(cmd);
          FileOutputStream outFos = null;
          FileOutputStream errFos = null;
          File out = new File("keytool_exe.out");
          out.createNewFile();
          File err = new File("keytool_exe.err");
          err.createNewFile();
          outFos = new FileOutputStream(out);
          errFos = new FileOutputStream(err);
          StreamSink outSink = new StreamSink(p.getInputStream(),"Output", outFos );
          StreamSink errSink = new StreamSink(p.getErrorStream(),"Error", errFos );
          outSink.start();
          errSink.start();
          int exitVal = 0;;
          try {
               exitVal = p.waitFor();
          } catch (InterruptedException e) {
               return -100;
          System.out.println (exitVal==0 ? "certificate created" :
               "A problem occured during certificate creation");
          outFos.flush();
          outFos.close();
          errFos.flush();
          errFos.close();
          out.delete();
          err.delete();
          return exitVal;
     public static void main (String[] args) throws
          KeyStoreException, NoSuchAlgorithmException, CertificateException, IOException{
          createKey();
import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.PrintWriter;
//Adapted from Mike Daconta's StreamGobbler at
//http://www.javaworld.com/javaworld/jw-12-2000/jw-1229-traps.html?page=4
public class StreamSink extends Thread
    InputStream is;
    String type;
    OutputStream os;
    public StreamSink(InputStream is, String type)
        this(is, type, null);
    public StreamSink(InputStream is, String type, OutputStream redirect)
        this.is = is;
        this.type = type;
        this.os = redirect;
    public void run()
        try
            PrintWriter pw = null;
            if (os != null)
                pw = new PrintWriter(os);
            InputStreamReader isr = new InputStreamReader(is);
            BufferedReader br = new BufferedReader(isr);
            String line=null;
            while ( (line = br.readLine()) != null)
                if (pw != null)
                    pw.println(line);
                System.out.println(type + ">" + line);
            if (pw != null)
                pw.flush();
        } catch (IOException ioe)
            ioe.printStackTrace();
import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import javax.security.auth.x500.X500Principal;
public class PrincipalInfo {
     private static String defInfoString = "CN=Name, O=Organization";
     //make it a singleton.
     private static class PrincipalInfoHolder{
          private static PrincipalInfo instance = new PrincipalInfo();
     public static PrincipalInfo getInstance(){
          return PrincipalInfoHolder.instance;
     private PrincipalInfo(){
     public X500Principal getPrincipal(){
          String fileName = "principal.der";
          File file = new File(fileName);
          if (file.exists()){
               try {
                    return new X500Principal(new FileInputStream(file));
               } catch (FileNotFoundException e) {
                    // TODO Auto-generated catch block
                    e.printStackTrace();
                    return null;
          }else{
               return new X500Principal(defInfoString);
     public void savePrincipal(X500Principal p) throws IOException{
          FileOutputStream fos = new FileOutputStream("principal.der");
          fos.write(p.getEncoded());
          fos.close();
}Message was edited by:
MidnightJava
Message was edited by:
MidnightJava

How can i pass the values to method public static void showBoard(boolean[][

I need x and y to pass to the method
public static void showBoard(boolean[][] board
i am very confused as to why its boolean,i know its an array but does that mean values ar true or false only?Thanks
import java.util.Random;
import java.util.Scanner;
public class Life1
     public static void main(String[] args)
          int x=0;
          int y=0;
          Scanner keyIn = new Scanner(System.in);
          System.out.println("Enter the first dimension of the board : ");
          x = keyIn.nextInt();
          System.out.println("Enter the second dimension of the board : );
          y = keyIn.nextInt();
          boolean[][] board = new boolean[x][y];
          fillBoard(board);
          showBoard(board);
          //Ask the user how many generations to show.
          board = newBoard(board);
          showBoard(board);
     //This method randomly populates rows 5-9 of the board
     //Rewrite this method to allow the user to populate the board by entering the
     //coordinates of the live cells. If the user requests that cell 1, 1 be alive,
     //your program should make cell 0,0 alive.
     public static void fillBoard(boolean[][] board)
          int row, col, isAlive;
          Random picker = new Random();
          for(row = 4; row < 9; row++)
               for(col = 4; col < 9; col++)
                    if (picker.nextInt(2) == 0)
                      board[row][col] = false;
                    else
                      board[row][col] = true;
     //This method displays the board
     public static void showBoard(boolean[][] board)
          int row, col;
          System.out.println();
          for(row=0; row < x; row++)
               for(col=0; col<y; col++)
                    if (board[row][col])
                         System.out.print("X");
                    else
                         System.out.print(".");
               System.out.println();
          System.out.println();
     //This method creates the next generation and returns the new population
     public static boolean[][] newBoard(boolean[][] board)
          int row;
          int col;
          int neighbors;
          boolean[][] newBoard = new boolean[board.length][board[0].length];
          makeDead(newBoard);
          for(row = 1; row < board.length-1; row++)
               for(col = 1; col < board[row].length-1; col++)
                    neighbors = countNeighbors(row, col, board);
                    //make this work with one less if
                    if (neighbors < 2)
                         newBoard[row][col]=false;
                    else if (neighbors > 3)
                         newBoard[row][col] = false;
                    else if (neighbors == 2)
                         newBoard[row][col]= board[row][col];
                    else
                         newBoard[row][col] = true;
          return newBoard;
     //This method counts the number of neighbors surrounding a cell.
     //It is given the current cell coordinates and the board
     public static int countNeighbors(int thisRow, int thisCol, boolean[][] board)
          int count = 0;
          int row, col;
          for (row = thisRow - 1; row < thisRow + 2; row++)
               for(col = thisCol - 1; col < thisCol + 2; col++)
                 if (board[row][col])
                      count++;
          if (board[thisRow][thisCol])
               count--;
          return count;
     //This method makes each cell in a board "dead."
     public static void makeDead(boolean[][] board)
          int row, col;
          for(row = 0; row < board.length; row++)
               for(col = 0; col < board[row].length; col++)
                    board[row][col] = false;
}

this is what im workin with mabey you can point me in the right directionimport java.util.Random;
/* This class creates an application to simulate John Conway's Life game.
* Output is sent to the System.out object.
* The rules for the Life game are as follows...
* Your final version of the program should explain the game and its use
* to the user.
public class Life
     public static void main(String[] args)
          //Allow the user to specify the board size
          boolean[][] board = new boolean[10][10];
          fillBoard(board);
          showBoard(board);
          //Ask the user how many generations to show.
          board = newBoard(board);
          showBoard(board);
     //This method randomly populates rows 5-9 of the board
     //Rewrite this method to allow the user to populate the board by entering the
     //coordinates of the live cells. If the user requests that cell 1, 1 be alive,
     //your program should make cell 0,0 alive.
     public static void fillBoard(boolean[][] board)
          int row, col, isAlive;
          Random picker = new Random();
          for(row = 4; row < 9; row++)
               for(col = 4; col < 9; col++)
                    if (picker.nextInt(2) == 0)
                      board[row][col] = false;
                    else
                      board[row][col] = true;
     //This method displays the board
     public static void showBoard(boolean[][] board)
          int row, col;
          System.out.println();
          for(row=0; row < 10; row++)
               for(col=0; col<10; col++)
                    if (board[row][col])
                         System.out.print("X");
                    else
                         System.out.print(".");
               System.out.println();
          System.out.println();
     //This method creates the next generation and returns the new population
     public static boolean[][] newBoard(boolean[][] board)
          int row;
          int col;
          int neighbors;
          boolean[][] newBoard = new boolean[board.length][board[0].length];
          makeDead(newBoard);
          for(row = 1; row < board.length-1; row++)
               for(col = 1; col < board[row].length-1; col++)
                    neighbors = countNeighbors(row, col, board);
                    //make this work with one less if
                    if (neighbors < 2)
                         newBoard[row][col]=false;
                    else if (neighbors > 3)
                         newBoard[row][col] = false;
                    else if (neighbors == 2)
                         newBoard[row][col]= board[row][col];
                    else
                         newBoard[row][col] = true;
          return newBoard;
     //This method counts the number of neighbors surrounding a cell.
     //It is given the current cell coordinates and the board
     public static int countNeighbors(int thisRow, int thisCol, boolean[][] board)
          int count = 0;
          int row, col;
          for (row = thisRow - 1; row < thisRow + 2; row++)
               for(col = thisCol - 1; col < thisCol + 2; col++)
                 if (board[row][col])
                      count++;
          if (board[thisRow][thisCol])
               count--;
          return count;
     //This method makes each cell in a board "dead."
     public static void makeDead(boolean[][] board)
          int row, col;
          for(row = 0; row < board.length; row++)
               for(col = 0; col < board[row].length; col++)
                    board[row][col] = false;
}

Can't find file when use the main(String[] args) method

I put a file under the DefaultDomain directory of Weblogic 11.1.1.5 on my local machine. Below is how I look up this file
FileInputStream fis = new FileInputStream("input.xml");
I started up the IntegratedWeblogicServer instance and I tested using the below 2 approaches.
1) When I test a web service program using the below approach, it CAN'T find the input.xml file
public static void main(String[] args)
2) When I package it into an EAR file and deploy it onto the server then log into the admin console and use the test client approach then it's able to find the file
How do I make it so it can find the file using #1 approach?
Thanks

That's how relative paths work, and it's nothing particular to Java.
When you type ls input.xml or dir input.xml does it list the file, or give an error? If it lists the file, then it's in your current directory, and it will work if you run Java from that directory. If it gives an error, then that file is not in your current working directory, and Java won't be able to find it either.

When does the Java main(String args[]) method exit?

Hi all,
I and my colleagues want to know, when does the main() method exit?
we wrote a small code as follows:
import java.awt.*;
public class Test {
public static void main(String[] args) {
Frame f = new Frame("hi");
f.show();
System.out.println("after show");
and ran the program, in which case I could see the printed message "after show", but although there is no code after the System.out.println(), the Java virtual machine does not exit and waits for the Frame to close.
My question is has the main method exited in this case? since it clearly shows that it does not have any more code to execute. Does java create the main method as a thread or as a process?
regards,
Harshad

To make your application terminate you need to add code to cause the AWT thread to handle the termination. In your code, before f.show(), try:
f.addWindowListener(new WindowAdapter() {
public void windowClosing(WindowEvent e) {
dispose();
public void windowClosed(WindowEvent e) {
System.exit(0);
});Now, at least you can click on the little "X" on the upper right-hand corner of the Frame (at least in Win95/98/NT) environments) to cause your application to receive a window closing event. It is also possible to add a menu with an option to exit; in that case I'd use an EventQueue to cause a window closing event to be sent.

Why should i write main(String[] args)?

Hello,
I don't know why i am obliged in the main function of the class to send an array of string as parameters?
Thanks

Actually I think this is a great question!
main()
Any java application has to have a main method to do anything, but as you gain further into java and object orientated practices you will start writing lots of stuff that do NOT have a main method but are *.java and *.class files, neither will they do anything unless they are attached to a program with a main. Andthen as you get DEEPER still you might even have 'private synchronised void main(String[] args)' - though not too often.
Why an array of strings? Hmmm ...pauses ...thinks, there is no obvious reason, other than the fact that if you're going to pass parameters from 'java ...' command line to the application. This is, logically, the most potentially useful data type to have. There may well be other reasons for this, so the answer to the second part of your question is a logical deduction - it may not be right.

Why can I create a new folder in the catalog but it only shows up in windows not the catalog

Why can I create a new folder in the catalog but it only shows up in windows not the catalog

Not sure I understand the question but it could be because you meant to say "can't" somewhere in the sentence. anyway, just guessing here:
Try going to:
File >> Watch folders
Now you can Add new folders here that you see them in Windows. The word ADD is a button to browse for the folders and hopefully this will solve the problem you are having.

How can I create an element in the model node?

Hi, Experts,
I create a model node that name is containerNode in the contxt. Cadinility is: 1..n
I write the code in the method:
private String getDataForOutputTable( IWDNode wageTypePayslip, IWDNode containerNode ){
     String betrgSumStr = "";
     int index = 0;
     Vector containerVector = new Vector();
     int size = wageTypePayslip.size();
     IWDNodeElement element = containerNode.createElement();// The system report error when I run the application.
     BigDecimal betrgSum = new BigDecimal( 0 );
I try to create a element in the containerNode, But the system report error when I run the application.
java.lang.IllegalArgumentException: model object must not be null
     at com.sap.tc.webdynpro.progmodel.context.ModelNodeElement.<init>(ModelNodeElement.java:66)
     at besuretech.com.wdp.IPrivatePayDataDispView$IOContainerElement.<init>(IPrivatePayDataDispView.java:1537)
     at besuretech.com.wdp.IPrivatePayDataDispView$IContextNode.doCreateElement(IPrivatePayDataDispView.java:88)
     at com.sap.tc.webdynpro.progmodel.context.NodeInfo.createElement(NodeInfo.java:884)
     at com.sap.tc.webdynpro.progmodel.context.Node.createElementInternal(Node.java:1351)
     at com.sap.tc.webdynpro.progmodel.context.Node.createElement(Node.java:1370)
     at besuretech.com.PayDataDispView.getDataForOutputTable(PayDataDispView.java:251)
     at besuretech.com.PayDataDispView.getAllData(PayDataDispView.java:196)
     at besuretech.com.PayDataDispView.onPlugPayListViewIn(PayDataDispView.java:154)
     at besuretech.com.wdp.InternalPayDataDispView.wdInvokeEventHandler(InternalPayDataDispView.java:391)
     at com.sap.tc.webdynpro.progmodel.generation.DelegatingView.invokeEventHandler(DelegatingView.java:87)
     at com.sap.tc.webdynpro.clientserver.cal.ClientApplication.navigate(ClientApplication.java:826)
     at com.sap.tc.webdynpro.clientserver.cal.ClientComponent.navigate(ClientComponent.java:881)
     at com.sap.tc.webdynpro.clientserver.window.WindowPhaseModel.doNavigation(WindowPhaseModel.java:498)
How can I create an element in the model node ?
Best regards,
tao

Hi,
You need to execute the model before creating the element.
Regards
Ayyapparaj

How can I create a object for a note?

Hi experts,
I need to apply the note 501905 but when I try in the SNOTE transacction I receive this error:
Object REPS Z_MRM_DELETE_PP does not exist; create it
Diagnosis
The SAP Note that you want to implement contains changes to an object that does not yet exist in your system.
SAP Notes contain only changes to objects that already exist. This means that the the system cannot automatically create new objects during the implementation of this SAP Note.
Procedure
1. Cancel the SAP Note implementationl.
2. Create an empty object REPS Z_MRM_DELETE_PP with the corresponding object editor.
3. Restart the SAP Note implementation.
How can I create that Object??
Thanks for the help!

Hi Carlos,
It says that you have to create a new program with a name Z_MRM_DELETE_PP.
Once you create and activate the program you can execute the SAP Note.
All this processure will be written in the SAP Note.
Please Go through the Note using below:
Step1: Use T.code SNOTE.
Step2: Use menu GOTO --> NOTE BROWSER. Provide the Note no and EXECUTE.
Step3: Double click on the displayed line.
Here you will get the information to do before implementing the note.
Go through all the documentation, and once you did all the development given in the note then you can implement the note.
Regards,
Sreekanth.

How do I create an object on the fly

Hello there,
     I was wondering if it is possible to create an object on-the-fly. For example:- I have a class called Customer which holds the name, address and phone number of a customer. While the program is running I get a new customer, Mr Brown. How can I create a new Customer object which will hold the details of Mr Brown.
yours in anticipation
seaview

If I understood you right, you are thinking far too complicated.
So, when you click a button, a new object shall be created and stored. So basically you write a listener to your button that contains a method like this:
public void actionPerformed(ActionEvent e){
   Customer newCustomer = new Customer(textfield.getText());
   listOfCustomers.add(newCustomer);
}Maybe what got you confused is the object's name. Remember this: variables and field names DON'T exist anymore at runtime! They are just meant to help you when programming. If you want Mr. Brown as a customer, you have to provide a field in the customer class for the name. If a field is required for the existence of an object, you usually write a custom constructor for it, which accepts an according parameter.

Run-time error '429':Active X component can not create an object

Hi Folks,
I am using some VBA code to run logic in BPC for Excel. When i try to click on VBA button, It's giving the below error.However when i am trying to execute same from server it is working fine. Accessing from BPC client only we are facing this problem.
Code have no issues. Is there any specific thing need to mentioned in client when we use VBA programming? Basically we used the VBA program to create the id's in BPC for Excel. So that it will automatically created on fly. Testing was fine interms of working in Server.
" Run-time error '429':Active X component can not create an object ."

Hi,
Are you trying to add a member into the dimension from excel? As you said that this has been already tested in the server and is working fine, I believe, you have taken care of everything.
Now, coming to the point, when you are adding a member in the membersheet, you need to process the dimension. This requires the admin rights. So, please check the task profile of the user ID, with which you are trying from your system. This user ID should be the primary admin.
Hope this helps.
Additionally, can you please elaborate on the steps on what you followed for adding a member from the excel directly?

How can I write new objects to the existing file with already written objec

Hi,
I've got a problem in my app.
Namely, my app stores data as objects written to the files. Everything is OK, when I write some data (objects of a class defined by me) to the file (by using writeObject method from ObjectOutputStream) and then I'm reading it sequencially by the corresponding readObject method (from ObjectInputStream).
Problems start when I add new objects to the already existing file (to the end of this file). Then, when I'm trying to read newly written data, I get an exception:
java.io.StreamCorruptedException
at java.io.ObjectInputStream.readObject0(Unknown Source)
at java.io.ObjectInputStream.readObject(Unknown Source)
Is there any method to avoid corrupting the stream? Maybe it is a silly problem, but I really can't cope with it! How can I write new objects to the existing file with already written objects?
If anyone of you know something about this issue, please help!
Jai

Here is a piece of sample codes. You can save the bytes read from the object by invoking save(byte[] b), and load the last inserted object by invoking load.
* Created on 2004-12-23
package com.cpic.msgbus.monitor.util.cachequeue;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.RandomAccessFile;
* @author elgs This is a very high performance implemention of Cache.
public class StackCache implements Cache
    protected long             seed    = 0;
    protected RandomAccessFile raf;
    protected int              count;
    protected String           cacheDeviceName;
    protected Adapter          adapter;
    protected long             pointer = 0;
    protected File             f;
    public StackCache(String name) throws IOException
        cacheDeviceName = name;
        f = new File(Const.cacheHome + name);
        raf = new RandomAccessFile(f, "rw");
        if (raf.length() == 0)
            raf.writeLong(0L);
     * Whne the cache file is getting large in size and may there be fragments,
     * we should do a shrink.
    public synchronized void shrink() throws IOException
        int BUF = 8192;
        long pointer = getPointer();
        long size = pointer + 4;
        File temp = new File(Const.cacheHome + getCacheDeviceName() + ".shrink");
        FileInputStream in = new FileInputStream(f);
        FileOutputStream out = new FileOutputStream(temp);
        byte[] buf = new byte[BUF];
        long runs = size / BUF;
        int mode = (int) size % BUF;
        for (long l = 0; l < runs; ++l)
            in.read(buf);
            out.write(buf);
        in.read(buf, 0, mode);
        out.write(buf, 0, mode);
        out.flush();
        out.close();
        in.close();
        raf.close();
        f.delete();
        temp.renameTo(f);
        raf = new RandomAccessFile(f, "rw");
    private synchronized long getPointer() throws IOException
        long l = raf.getFilePointer();
        raf.seek(0);
        long pointer = raf.readLong();
        raf.seek(l);
        return pointer < 8 ? 4 : pointer;
     * (non-Javadoc)
     * @see com.cpic.msgbus.monitor.util.cachequeue.Cache#load()
    public synchronized byte[] load() throws IOException
        pointer = getPointer();
        if (pointer < 8)
            return null;
        raf.seek(pointer);
        int length = raf.readInt();
        pointer = pointer - length - 4;
        raf.seek(0);
        raf.writeLong(pointer);
        byte[] b = new byte[length];
        raf.seek(pointer + 4);
        raf.read(b);
        --count;
        return b;
     * (non-Javadoc)
     * @see com.cpic.msgbus.monitor.util.cachequeue.Cache#save(byte[])
    public synchronized void save(byte[] b) throws IOException
        pointer = getPointer();
        int length = b.length;
        pointer += 4;
        raf.seek(pointer);
        raf.write(b);
        raf.writeInt(length);
        pointer = raf.getFilePointer() - 4;
        raf.seek(0);
        raf.writeLong(pointer);
        ++count;
     * (non-Javadoc)
     * @see com.cpic.msgbus.monitor.util.cachequeue.Cache#getCachedObjectsCount()
    public synchronized int getCachedObjectsCount()
        return count;
     * (non-Javadoc)
     * @see com.cpic.msgbus.monitor.util.cachequeue.Cache#getCacheDeviceName()
    public String getCacheDeviceName()
        return cacheDeviceName;
}

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Can an abritary html object fill the brower window?
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Hi ,
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Please mark this thread as answered .

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