Problem in String.replaceAll please help

String ash = "XXX";
String ch = ash.replaceAll("X","$");
while executing the above code i am getting an exception
java.lang.StringIndexOutOfBoundsException: String index out of range: 1
     at java.lang.String.charAt(Unknown Source)
     at java.util.regex.Matcher.appendReplacement(Unknown Source)
     at java.util.regex.Matcher.replaceAll(Unknown Source)
     at java.lang.String.replaceAll(Unknown Source)
please help me
baiju

Cross-post
http://forum.java.sun.com/thread.jspa?threadID=607145

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I suppose it is the problem with socket connection,Please help

Hi,
I'm trying to build a chat server in Java on Linux OS.I've created basically 2 classes in the client program.The first one shows the login window.When we enter the Login ID & password & click on the ok button,the data is sent to the server for verification.If the login is true,the second class is invoked,which displays the messenger window.This class again access the server
for collecting the IDs of the online persons.But this statement which reads from the server causes an exception in the program.If we invoke the second class independently(ie not from 1st class) then there is no problem & the required data is read from the server.Can anyone please help me in getting this program right.I'm working on a p4 machine with JDK1.4.
The Exceptions caused are given below
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at java.net.SocketInputStream.read(SocketInputStream.java:119)
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     My program looks somewhat like this :
1st class definition:
public class Login extends Jframe// Login is the name of the first class;
Socket connection;
DataOutputStream outStream;
BufferedReader inStream;
Frame is set up here
public class Buttonhandler implements ActionListener
public void actionPerformed(ActionEvent e) {
String comm = e.getActionCommand();
if(comm.equals("ok")) {
check=LoginCheck(ID,paswd);
test();
public void test() //checks whether the login is true
if(check)
new Messenger(ID);// the second class is invoked
public boolean LoginCheck(String user,String passwd)
//Enter the Server's IP & port below
String destination="localhost";
int port=1234;
try
connection=new Socket(destination,port);
}catch (UnknownHostException ex){
error("Unknown host");
catch (IOException ex){
ex.printStackTrace ();
error("IO error creating socket ");
try{
inStream = new BufferedReader(new InputStreamReader(connection.getInputStream()));
outStream=new DataOutputStream(connection.getOutputStream());
}catch (IOException ex){
error("IO error getting streams");
ex.printStackTrace();
System.out.println("connected to "+destination+" at port "+port+".");
BufferedReader keyboardInput=new BufferedReader(new InputStreamReader(System.in));
String receive=new String();
try{
receive=inStream.readLine();
}catch(IOException ex){ error("Error reading from server");}
if(receive.equals("Logintrue"))
check=true;
else
check=false;
try{
inStream.close();
outStream.close();
connection.close();
}catch (IOException ex){
error("IO error closing socket");
return(check);
// second class is defined below
public class Messenger
Socket connect;
DataOutputStream outStr;
BufferedReader inStr;
public static void main(String args[])
{ Messenger mes = new Messenger(args[0]);}
Messenger(String strg)
CreateWindow();
setupEvents();
LoginData(strg);
fram.show();
void setupEvents()
fram.addWindowListener(new WindowHandler());
login.addActionListener(new MenuItemHandler());
quit.addActionListener(new MenuItemHandler());
button.addActionListener(new Buttonhandle());
public void LoginData(String name)
//Enter the Server's IP & port below
String dest="localhost";
int port=1234;
int r=0;
String str[]=new String[40];
try
connect=new Socket(dest,port);
}catch (UnknownHostException ex){
error("Unknown host");
catch (IOException ex){
ex.printStackTrace ();
error("IO error creating socket ");
try{
inStr = new BufferedReader(new InputStreamReader(connect.getInputStream()));
outStr=new DataOutputStream(connect.getOutputStream());
}catch (IOException ex){
error("IO error getting streams");
ex.printStackTrace();
String codeln=new String("\n");
try{
outStr.flush();
outStr.writeBytes("!@*&!@#$%^");//code for sending logged in users
outStr.writeBytes(codeln);
outStr.write(13);
outStr.flush();
String check="qkpltx";
String receive=new String();
try{
while((receive=inStr.readLine())!=null) //the statement that causes the exception
if(receive.equals(check))
break;
else
     str[r]=receive;
     r++;
}catch(IOException ex){ex.printStackTrace();error("Error reading from socket");}
catch(NullPointerException ex){ex.printStackTrace();}
} catch (IOException ex){ex.printStackTrace();
error("Error reading from keyboard or socket ");
try{
inStr.close();
outStr.close();
connect.close();
}catch (IOException ex){
error("IO error closing socket");
for(int l=0,k=1;l<r;l=l+2,k++)
if(!(str[l].equals(name)))
stud[k]=" "+str[l];
else
k--;
public class Buttonhandle implements ActionListener
public void actionPerformed(ActionEvent e) {
//chat with the selected user;
public class MenuItemHandler implements ActionListener
public void actionPerformed(ActionEvent e)
String cmd=e.getActionCommand();
if(cmd.equals("Disconnect"))
//Disconnect from the server
else if(cmd.equals("Change User"))
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else if(cmd.equals("View Connection Details"))
//show connection details;
public class WindowHandler extends WindowAdapter
public void windowClosing(WindowEvent e){
//Disconnect from server & then exit;
System.exit(0);}
I�ll be very thankful if anyone corrects the mistake for me.Please help.

You're connecting to the server twice. After you've successfully logged in, pass the Socket to the Messenger class.
public class Messenger {
    Socket connect;
    public static void main(String args[]) {
        Messenger mes = new Messenger(args[0]);
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Hi,
I have One region(ASNOpptyReviewRN).this region is a tab in the main page(OpptyPG).For the region i am using one VO(OppReviewVO).
When i came to this page i am writing the code in the process request to execute the VO based on the condition..so i can get the data on the page.
First time VO is getting executed and data is coming in the page.if there is no data then i have the requirement to insert or update the fields in the region.
So everything is working fine first time..or if i not insert anything new row...it is working fine all the time.
But the problem is...after insert a new row and if i come to home page(not OpptyPG) and if i go to the ASNOpptyReviewRN the vo is getting executed but it is not showing the data on the page..
This is happenig only when i insert a new row and i come back to that page..
Please Help me..its urgent.. i am pasting the Processrequest and Amimpl code here...
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String reviewdDate=pageContext.getParameter("ReviewedDate");
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String contEffort=pageContext.getParameter("ContingencyEffort");
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String expiryDate=pageContext.getParameter("ExpiryDate");
String comments=pageContext.getParameter("Comments");
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pageContext.writeDiagnostics(this, "Inside ifff Bharat", 1);
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Number bidnum=new Number(BidNumber);
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vo.setWhereClause(null);
vo.setWhereClauseParams(null);
vo.setWhereClause("BID_ID=:1");
vo.setWhereClauseParam(0,bidnum);
vo.executeQuery();
int rowCount=vo.getRowCount();
String msg8="Hi no of row count:-.."+":-- "+rowCount;
logMessages(msg8);
if(rowCount==0)
String msg2="Hi iam inside bidreview:- Before fetch...";
logMessages(msg2);
vo.setMaxFetchSize(0);
Row row=vo.createRow();
String msg3="Hi iam inside bidreview:- After create....";
logMessages(msg3);
vo.insertRow(row);
String msg4="Hi iam inside bidreview:- insert row....";
logMessages(msg4);
row.setNewRowState(Row.STATUS_INITIALIZED);
vo.setCurrentRow(row);
String msg5="Hi iam inside bidreview:- insert row....";
logMessages(msg5);
OpportunityBidReviewVORowImpl opptybidreviewVo = (OpportunityBidReviewVORowImpl)vo.getCurrentRow();
opptybidreviewVo.setBidId(bidnum);
opptybidreviewVo.setReviewedBy(reviewdBy);
//opptybidreviewVo.setReviewedDate(reviewdate);
opptybidreviewVo.setVersionNumber(versionNum);
opptybidreviewVo.setEffortWithoutContingency(effortWithoutCont);
opptybidreviewVo.setContingencyEffort(contEffort);
opptybidreviewVo.setReviewFlag(reviewFlag);
//opptybidreviewVo.setExpiryDate(expirydate);
opptybidreviewVo.setComments(comments);
String msg6="Hi iam inside bidreview:- after all....";
logMessages(msg6);
String msg7="vo is cleared";
logMessages(msg7);
else
String msg7="Hi iam inside bidreview:- already existing.....";
logMessages(msg7);
Thanks in advance
Edited by: 842238 on Jul 1, 2011 7:07 AM

Hi Kristoper,
No..that Vo is based on some EO..why i am using the row.setAttribute() is...the bid number is coming from some other page...and i need to insert it in table..
and except the bid number..other values are coming from the page...
Thank you

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import java.awt.event.*;
import javax.swing.*;
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There were problems when executing the application
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i had no problem running this... make sure you open the server part first and have that sitting and waiting for the client to connect.... then it should work.
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                    v.left = insert(v.left, n);
               else
                    v.right = insert(v.right, n);
               return v;
     }

Are you sure the problem is not in the printing code?
I can't see any obvious mistakes after a quick look... But if "root" is a reference to the root node, what is "rootTemp"?

Vector problem... Please help!

Hi,
I searched the forum but I could not get a correct answer for a vector problem I am facing. I have 2 SQL queries that are nested. Initially I tried to nest them but realized that when I close the connection to one query I cannot nest the other since the first query is closed ( blazix web server does not let you open open a wuery if you have not closed one query) Somebody had suggested to include the infor on a Vector and then reuse it. However I am not sure of how to do this.
The following is what I have so far.
<%@ page import="java.util.Vector" %>
<%
<blx:sqlQuery id="Buttons">
Select      ID, Ntive, ButtonLabel ButtonLink
From Pages
</blx:sqlQuery>
<% } else { %>
<blx:sqlQuery id="Project">
Select      ID, ProjectName, PLongName
From Projects
</blx:sqlQuery>
<% } %>
// now both of these queries are nested within each other to get the output.
<blx:sqlExecuteQuery resultSet="rs" queryRef="Buttons">
<%
int ID = rs.getInt("ID");
int Ntive = rs.getInt("Ntive");
String ButtonLabel=rs.getString("ButtonLabel");
String ButtonLink=rs.getString("ButtonLink");
%>
<% if (ID != 1){
if (Ntive ==1) {
     Link="index.jsp?Page="+ID;
     } else {
     Link= ButtonLink;
%>
<LI><a href="<%=Link%">> <%=ButtonLabel%></a></LI>
<% if (ID==2) {%>
// then I start the second query projects.
<blx:sqlExecuteQuery resultSet="rs" queryRef="Project">
</blx:sqlExecuteQuery>
<% if (ID==3) %>// this is again from the first query
// here i start the second query again
//now I close the first query.
Please help me to write a Vector withnin here and to retrieve the information to be used again on the same JSP page.
Thanks!

I wonder why Blazix dosnt allow multiple queries.
Here is the logic using Vectors.
<%@ page import="java.util.Vector" %>
Vector IDVector = new Vector();
Vector NtiveVector = new Vector();
Vector ButtonLabelVector = new Vector();
Vector ButtonLinkVector = new Vector();
if(whatever is the codition here)
     %>
     <blx:sqlQuery id="Buttons">
          Select ID, Ntive, ButtonLabel, ButtonLink
          From Pages
     </blx:sqlQuery>
     <%
else
     %>
     <blx:sqlQuery id="Project">
     Select ID, ProjectName, PLongName
     From Projects
     </blx:sqlQuery>
     <%
%>
<blx:sqlExecuteQuery resultSet="rs" queryRef="Buttons">
<%
     IDVector.add(rs.getInt("ID"));
     NtiveVector.add(rs.getInt("Ntive"));
     ButtonLabelVector.add(rs.getString("ButtonLabel"));
     ButtonLinkVector.add(rs.getString("ButtonLink"));
%>
//now I close the first query.
</blx:sqlQuery>
<%
for(rec=0;rec<IDVector.size();rec++)
     int ID = (int) IDVector.elementAt(rec);
     int Ntive = (int) NtiveVector.elementAt(rec);
     String ButtonLabel = (String) ButtonLabelVector.elementAt(rec);
     String ButtonLink = (String) ButtonLinkVector.elementAt(rec);
     if (ID != 1)
          if (Ntive ==1)
               Link="index.jsp?Page="+ID;
          else
               Link= ButtonLink;
          %>
          <LI><a href="<%=Link%">> <%=ButtonLabel%></a></LI>
          <%
          if (ID==2)
               %>
               // then I start the second query projects.
               <blx:sqlExecuteQuery resultSet="rs" queryRef="Project">
               </blx:sqlExecuteQuery>
               <%
          if (ID==3)
               %>
               // this is again from the first query
               // here i start the second query again
               <%
%>
Hope it helps.
-Mak

TOMCAT problem on REDHAT 9,PLEASE HELP

Hello, i am new to redhat and i installed tomcat 4.0.1 and it worked properly, i used tomcat for studying issues so i used to start it and stop it many times
now when i use mozilla and try to request the server using http://localhost:8080/ ,mozilla status bar shows "Transfering data from localhost" and loops for ever
so please help me

I think this is not problem of redhat just check reinstalling tomcat.

Very Odd Problem connecting to network please help

Ok so I have had my Macbook Pro for a while and I have both an Airport Extreme and an Airport Express in my room. So until recently I could turn on my computer and my Airport would automatically connect to the internet. Now recently I turn on or open my computer and I can still see my network but I cannot connect to it. I have restarted all the devices and my computer, but the only thing that eventually logs me on (after anywhere between 5 minutes - an hour) is waiting. But the second I close my laptop I will get booted off the Internet and I cannot connect again.
However I can still see the network I just cannot connect to it.
Also another problem I have noticed is that when in Network Setup Assistant it asks me for the password for the network, and I have entered this password many times in my life for my iPhone and for my other devices. And yet recently when I input the correct password (ive tried over 100 times) I get a message saying that the password is incorrect, when I know for a fact that I am putting the right password in.
If anyone could please help me I would be very grateful.

The Airport Extreme base station has 2 passwords, one for logging into the router, the other for your network access (assuming you have security switched on). Just make sure you are trying to enter the correct password (I know this sounds obvious and no offense is meant).
If you added the Extreme to your other router, make sure in Airport utility the Extreme is set to Bridge Mode, this will remove any incompatibility issues with 2 devices trying to obtain IP addresses from your ISP. Only one router should connect to your ISP, using password, username and relevant settings, the other is a bridge for your internal network allowing faster transfers between devices connected to say for example your extreme.
I have a Netgear DG834PN modem/router which is assigned control to connect to my ISP (as it is a modem, the Extreme Base Station isn't a modem). The Apple Extreme is connected through ethernet to the Netgear. I have all my 802.11g/b/a devices connected through the Netgear wireless network (2.4Ghz) and all my 802.11n devices connected through the Apple Extreme Base Station wireless network ('n' only @5Ghz). I also have my Mac Pro and my AppleTV connected through gigabit ethernet (through the Extreme ethernet). Everything works well. AppleTV and Mac Pro sync very quickly, my MacBook Pro connects to other computers or devices (AppleTV for streaming content) within the Apple Extreme network, wired or wireless, and allows fast transfer speeds, especially with no g/b/a devices slowing things up.
I also have a USB hub connected to the Extreme with USB printer attached and additional external storage connected, both available throughout the Extreme network to either wired or wireless devices.
It sounds a bit complicated but it is really easy to do.

Problem in String.replaceAll please help

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