Java SOS
I have to read from an input file which is formatted different from what I am used to. it is as follows...
team name, 2
playera,4.3
playerb,8.2
team name,3
so on and so forth, I need to put them into arrays of each team, but I have literally no clue how, all help greatly appreciated. Also help is needed urgently, and more information needed just ask.
Welcome to the Sun forums. You need to study these two references.
http://java.sun.com/docs/books/tutorial/essential/io/
http://java.sun.com/j2se/1.5.0/docs/api/java/util/Scanner.html
You should create a class that represents an team and then use a collection of these teams.
Please note - marking your thread as 'urgent' implies that you think it more important than any other thread. Since it's not more important, using the word 'urgent' tends to have the opposite effect to the one intended.
Similar Messages
-
SOS! How to study Java!
Good place to start is with a good book!!!
Ive heard "thinking in java" is a very good book....
Also have heard its available online... -
Core Java Issue in decimal division....SOS!!!!
Hi People,
I was just wondering the reason for below output generated in java.
double d2 = 0.142;
double d3 = d2/100;
System.out.println(d3);
Output = 0.0014199999999999998
But if i do in calculator i get 0.00142
double d2 = 0.152;
double d3 = d2/100;
System.out.println(d3);
Output = 0.0015199999999999999
But if i do in calculator i get 0.00152
Any help is highly appreciated.939520 wrote:
You also might want to read up on Java's 'strictfp' reserved word. I don't know if it will help and weather or not it applies to both float and double since I never used it.
Setting 'strictfp' will make no difference. The Goldberg article explains the problem.
If the OP is doing scientific or engineering work then the errors due to the fact that not all decimal values have a finite length binary representation will usually be small enough to be neglected. If the OP is working with money then, even though double has about 14 decimal places, it is unlikely to be acceptable. -
I have a very bad problem with java I try many solution but all the solution failed
Hello friends,
My system 10.8.3 Macbook pro
I try many solution in the
Hello friends,
My system 10.8.3 Macbook Pro, I use Safari 6.0.3
Java is not working.
I try many solution in the internet but nothing work with me , And I feel very sad
One of the famous solution I try in this link: http://support.apple.com/kb/HT5559
I download Java OS x 2013-002 and Java 7.17
after that i do what is written here : http://support.apple.com/kb/HT5559 Also failed.
Sometime I think to sell my new Macbook Pro because of this problem
I hope that any one can help me ?
Thank you
SosoI check what java I have by this way: https://service.parachat.com/knowledgebase/211/How-do-I-check-which-Java-version -is-installed-on-my-Mac.html
java version "1.6.0_43"
Java(TM) SE Runtime Environment (build 1.6.0_43-b01-447-11M4203)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01-447, mixed mode)
sos-macbook-pro:~ so$ -
im constantly getting 2 errors on console (Solaris XManager)
**java.sql.SQLException: ORA-01722: invalid number**
**java.lang.NumberFormatException: For input string: "abc"**
In my bean file theres a method calld 'FLoc()' in which
im passing 5 parameteres (all strings) plus sessionID.
in that method a method is called which is in another file
called 'gsms()': there are SAME six parameters; all Strings
also in that method, JDBC connectivity is done with
procedure calls.
That procedure contains 11 'IN' parameters & 2 'OUT'
p pi_session_id IN 1 VARCHAR2,
2 pi_B_p_M IN VARCHAR2,
3 pi_log_id IN NUMBER,
4 pi_B_p_loc IN VARCHAR2,
5 pi_ms_st IN VARCHAR2,
6 pi_s_re_time IN VARCHAR,
7 pi_s_re_flag IN VARCHAR2,
8 pi_s_re_text IN VARCHAR2,
9 pi_ap_st_id IN NUMBER,
10 pi_t_app IN DATE,
11 pi_s_er IN VARCHAR2,
po_err_code OUT NUMBER,
po_B_party_locn_details OUT Pkg_Refcur.ref_type)
help needed !! SOS!!! this silly problem has been bugging me since a day!!! im not very comfortable with JDBC/Core Java concepts...
i searched ORA error...it said some conversion problem.
i couldnt understand please explain.Thanks dcminter for that. .....
Got rid of that NumberFormatException but ORA 01722 error is still bugging me :)
straight from the console ::
at src.SInterface.dbstorage.gSM(dbstorage.java:212)
at src.FLoc.FLocJBean.fLoc(FLocJBeanjava:146)
at org.apache.jsp.src.FLoc.SLoc_jsp._jspService(SLoc_jsp.java:93)
where could be the error??? -
ALERT: java/lang/ClassFormatError: Bad stack map.
Hello friends.
I need help. SOS.
Where is wrong in this code?
Problem is in comparision.
Comenting this lines, all are ok.
if(time1==time2)
System.out.println("Equal");
else
System.out.println("Different");C�digo del Midlet:
package borrame.pruebas;
import java.util.Date;
import javax.microedition.lcdui.Command;
import javax.microedition.lcdui.CommandListener;
import javax.microedition.lcdui.Display;
import javax.microedition.lcdui.Displayable;
import javax.microedition.lcdui.Form;
import javax.microedition.midlet.MIDlet;
import javax.microedition.midlet.MIDletStateChangeException;
public class Prueba extends MIDlet implements CommandListener {
Display display;
Form mainForm;
// Comandos para salir y volver a la pantalla principal.
Command cmdSalir;
public Prueba() {
super();
mainForm = new Form ("HelloMidp");
cmdSalir = new Command("Salir", Command.EXIT,1);
mainForm.addCommand(cmdSalir);
mainForm.setCommandListener(this);
protected void startApp() throws MIDletStateChangeException {
display = Display.getDisplay(this);
display.setCurrent (mainForm);
long time1 = new Date().getTime();
long time2 = new Date().getTime() +100;
System.out.println("time1: " + time1);
System.out.println("time2: " + time2);
System.out.println("time1 + time2 =" + (time1 + time2));
if(time1==time2)
System.out.println("Equal");
else
System.out.println("Different");
protected void pauseApp() {
// TODO Auto-generated method stub
protected void destroyApp(boolean arg0) throws MIDletStateChangeException {
// TODO Auto-generated method stub
public void commandAction(Command c, Displayable d) {
if (c == cmdSalir) { // Selecciono salir de la aplicacion
try {
destroyApp(false);
} catch (MIDletStateChangeException e) {
e.printStackTrace();
notifyDestroyed();
}Output console:
Warning: Cannot convert string "-b&h-lucida-medium-r-normal-sans-*-140-*-*-p-*-iso8859-1" to type FontStruct
Running with storage root DefaultColorPhone
ALERT: java/lang/ClassFormatError: Bad stack map.
Method............: b7d29990 'com/sun/midp/midlet/MIDletState.createMIDlet (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d3a4
Current IP........: b7da5669 = b7da565b + offset 14
Previous Frame....: b783d36c
Previous IP.......: b7d87f44 (offset 52)
Frame size........: 7 (1 arguments, 6 local variables)
Argument[0].......: b783cad0
Local[1]..........: b78b35c8
Local[2]..........: b7d87f41
Local[3]..........: b783cc38
Local[4]..........: b7d29788
Local[5]..........: b78b355c
Local[6]..........: 0
Operand[1]........: b783cad0
Method............: b7d16390 'com/sun/midp/midlet/Scheduler.schedule (virtual)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d36c
Current IP........: b7d87f44 = b7d87f10 + offset 52
Previous Frame....: b783d338
Previous IP.......: b7d92b05 (offset 28)
Frame size........: 7 (2 arguments, 5 local variables)
Argument[0].......: b783cd14
Argument[1].......: b783c460
Local[2]..........: b78b20c4
Local[3]..........: b78b3594
Local[4]..........: b7d92b01
Local[5]..........: b78b35a8
Local[6]..........: b7d162b0
Operand[1]........: b783cd14
Method............: b7d1e084 'com/sun/midp/main/Main.runLocalClass (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d338
Current IP........: b7d92b05 = b7d92ae9 + offset 28
Previous Frame....: b783d314
Previous IP.......: b7d9257c (offset 116)
Frame size........: 3 (1 arguments, 2 local variables)
Argument[0].......: b783d1bc
Local[1]..........: b783c460
Local[2]..........: b78b3570
Method............: b7d1dfe4 'com/sun/midp/main/Main.main (static)'
Stack Chunk.......: b783d300
Frame Pointer.....: b783d314
Current IP........: b7d9257c = b7d92508 + offset 116
Previous Frame....: 0
Previous IP.......: 1
Frame size........: 3 (1 arguments, 2 local variables)
Argument[0].......: b783d5ec
Local[1]..........: b783d1bc
Local[2]..........: b783cb24
VM status:
Instruction pointer.: b7da5669 (offset within invoking method: 14)
Next instruction....: 0x4c
Frame pointer.......: b783d3a4
Local pointer.......: b783d388
Stack size..........: 128; sp: b783d3bc; ranges: b783d308-b783d508;
Contents of the current stack frame:
b783d388: b783cad0 (lp)
b783d38c: b78b35c8
b783d390: b7d87f41
b783d394: b783cc38
b783d398: b7d29788
b783d39c: b78b355c
b783d3a0: 0
b783d3a4: b783d36c (fp)
b783d3a8: b7d87f44
b783d3ac: b783d384
b783d3b0: b7d29990
b783d3b4: b783d300
b783d3b8: 0 (end of frame)
b783d3bc: b783cad0 (sp)
Execution stack contains 184 items:
b783d5ec
b783d1bc
b783cb24
0
1
b78b3560
b7d1dfe4
b783d300
0
b783d1bc
b783c460
b78b3570
b783d314
b7d9257c
b783d328
b7d1e084
b783d300
0
b783cd14
b783c460
b78b20c4
b78b3594
b7d92b01
b78b35a8
b7d162b0
b783d338
b7d92b05
b783d34c
b7d16390
b783d300
0
b783cd14
b783cad0
b78b35c8
b7d87f41
b783cc38
b7d29788
b78b355c
0
b783d36c
b7d87f44
b783d384
b7d29990
b783d300
0
b783cad0
Execution completed.
717374 bytecodes executed
5 thread switches
742 classes in the system (including system classes)
3720 dynamic objects allocated (102340 bytes)
2 garbage collections (88196 bytes collected)
Execution completed.
717374 bytecodes executed
5 thread switches
742 classes in the system (including system classes)
3720 dynamic objects allocated (102340 bytes)
2 garbage collections (88196 bytes collected)My enviroment:
Linux Gentoo.
Sun JDK 1.4.2.10
eclipse 3.2 WTP 1.5
eclipseme 1.5.5
Midlet config:
MIDlet-Version: 1.0
MicroEdition-Configuration: CLDC-1.0
MicroEdition-Profile: MIDP-1.0
WTK 2.2
In last test, i'm using ktoolbar directly to build and execute midlet and all go ok.
So, My code is not problem.
I suppose that eclipseme corrupt my classes in build process.
SOLUTION:
My radical solution. I use eclipse without eclipseme, and i use ktoolbar to build, run, package, etc...
Thank's -
Socket connection between Java and C
I want to establish socket connection between Java client and C server (on Unix). Can anybody tell how to do it? Will the socket created in client be available in server. I tried out but there was no response from the server.
We too can't connect the daemon server written by "c". The phenomena is below.
<< Execution of this Question1.class >> ---------------------------------------
[kazuyuki@CryptOne tmp]$ java Question1 E 1.2.3.4 MFrame.java 195.211.1.1 15021
<< Output message >> ----------------------------------------------------------
Quetion1 : flg_ = E
Quetion1 : key_ = 1.2.3.4
Quetion1 : fn_ = MFrame.java
Quetion1 : adr_ = CryptOne.localhost/195.211.1.1
Quetion1 : port_ = 15021
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:350)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:137)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:124)
at java.net.Socket.<init>(Socket.java:268)
at java.net.Socket.<init>(Socket.java:122)
at Question1.UPLOAD(Question1.java:65)
at Question1.main(Question1.java:155)
<< Question >> ----------------------------------------------------------------
Why the event "java.net.ConnectException: Connection refused" has occured ?
The server to connect from Question1 can accept the connection request from
the client program coded by "c" program. We have written down the daemon server
program by "c" code tcp/ip socket functions (socket, bind, listen, accept).
Security manager admits the access from this Question1.class, we have checked.
Would you like please answer this Connction refuse occurrence ?
2002.05.18 11:50:00.0(JST)
K.Masuda
<< Java client code>> -------------------------------------------------
(c)Copyright All rights reserved.
K.Masuda 2002.05.18
<< Question1.java >>
import java.lang.String;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.net.Socket;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.net.ConnectException;
import java.net.NoRouteToHostException;
class Question1 {
char flg_;
String key_;
String fn_;
InetAddress adr_;
int port_;
Socket sock_;
Question1(
char flg,
String key,
String fn,
String adr,
int port
flg_ = flg;
key_ = key;
fn_ = fn;
try{
adr_ = InetAddress.getByName( adr );
catch( UnknownHostException e ){
e.printStackTrace();
port_ = port;
System.out.println( "Quetion1 : flg_ = " + flg_ );
System.out.println( "Quetion1 : key_ = " + key_ );
System.out.println( "Quetion1 : fn_ = " + fn_ );
System.out.println( "Quetion1 : adr_ = " + adr_ );
System.out.println( "Quetion1 : port_ = " + port_ );
public void UPLOAD(
try{
sock_ = new Socket( adr_, port_ );
UpLoad();
DnLoad();
sock_.close();
catch( UnknownHostException e ){
e.printStackTrace();
catch( ConnectException e ){
e.printStackTrace();
catch( NoRouteToHostException e ){
e.printStackTrace();
catch( IOException e ){
e.printStackTrace();
public void UpLoad(
byte[] buf = new byte[ 512 ];
int rlen;
int wlen;
try {
OutputStream sos = sock_.getOutputStream();
FileInputStream fis = new FileInputStream( fn_ );
DataInputStream dis = new DataInputStream( fis );
DataOutputStream dos = new DataOutputStream( sos );
while( ( rlen = dis.read( buf, 0, buf.length ) ) >= 0 ){
dos.write( buf, 0, rlen );
dis.close();
dos.close();
fis.close();
sos.close();
catch( IOException e ){
e.printStackTrace();
public void DnLoad(
byte[] buf = new byte[ 512 ];
int rlen;
int wlen;
try {
InputStream sis = sock_.getInputStream();
FileOutputStream fos = new FileOutputStream( fn_ + ".cry" );
DataInputStream dis = new DataInputStream( sis );
DataOutputStream dos = new DataOutputStream( fos );
while( ( rlen = dis.read( buf, 0, buf.length ) ) >= 0 ){
dos.write( buf, 0, rlen );
dis.close();
dos.close();
fos.close();
sis.close();
catch( IOException e ){
e.printStackTrace();
public static void main(
String[] args
char[] chrs = ( new String( args[ 0 ] ) ).toCharArray();
Question1 clnt = new Question1(
// E or D
chrs[ 0 ],
args[ 1 ], // key string
args[ 2 ], // file to be processed
args[ 3 ], // IP address
// port
Integer.parseInt( args[ 4 ] )
clnt.UPLOAD();
} -
Using Servlets in java studio creator
Hello, anyone can tell me how can i use a servlet in java studio creator, due the file is in .java i dont know how to use it, here is an example i want to add to my proyect:
and other question is how can i make to work?
* Sean C. Sullivan
* June 2003
* URL: http://www.seansullivan.com/
package pdfservlet;
import javax.servlet.*;
import javax.servlet.http.*;
import java.util.*;
import java.io.ByteArrayOutputStream;
import java.io.PrintWriter;
// import the iText packages
import com.lowagie.text.*;
import com.lowagie.text.pdf.*;
* a servlet that will generate a PDF document
* and send the document to the client via the
* ServletOutputStream
* @author Sean C. Sullivan
public class PDFServlet extends HttpServlet
public PDFServlet()
super();
* we implement doGet so that this servlet will process all
* HTTP GET requests
* @param req HTTP request object
* @param resp HTTP response object
public void doGet(HttpServletRequest req, HttpServletResponse resp)
throws javax.servlet.ServletException, java.io.IOException
DocumentException ex = null;
ByteArrayOutputStream baosPDF = null;
try
baosPDF = generatePDFDocumentBytes(req, this.getServletContext());
StringBuffer sbFilename = new StringBuffer();
sbFilename.append("filename_");
sbFilename.append(System.currentTimeMillis());
sbFilename.append(".pdf");
// Note:
// It is important to set the HTTP response headers
// before writing data to the servlet's OutputStream
// Read the HTTP 1.1 specification for full details
// about the Cache-Control header
resp.setHeader("Cache-Control", "max-age=30");
resp.setContentType("application/pdf");
// The Content-disposition header is explained
// in RFC 2183
// http://www.ietf.org/rfc/rfc2183.txt
// The Content-disposition value will be in one of
// two forms:
// 1) inline; filename=foobar.pdf
// 2) attachment; filename=foobar.pdf
// In this servlet, we use "inline"
StringBuffer sbContentDispValue = new StringBuffer();
sbContentDispValue.append("inline");
sbContentDispValue.append("; filename=");
sbContentDispValue.append(sbFilename);
resp.setHeader(
"Content-disposition",
sbContentDispValue.toString());
resp.setContentLength(baosPDF.size());
ServletOutputStream sos;
sos = resp.getOutputStream();
baosPDF.writeTo(sos);
sos.flush();
catch (DocumentException dex)
resp.setContentType("text/html");
PrintWriter writer = resp.getWriter();
writer.println(
this.getClass().getName()
+ " caught an exception: "
+ dex.getClass().getName()
+ "<br>");
writer.println("<pre>");
dex.printStackTrace(writer);
writer.println("</pre>");
finally
if (baosPDF != null)
baosPDF.reset();
* @param req must be non-null
* @return a non-null output stream. The output stream contains
* the bytes for the PDF document
* @throws DocumentException
protected ByteArrayOutputStream generatePDFDocumentBytes(
final HttpServletRequest req,
final ServletContext ctx)
throws DocumentException
Document doc = new Document();
ByteArrayOutputStream baosPDF = new ByteArrayOutputStream();
PdfWriter docWriter = null;
try
docWriter = PdfWriter.getInstance(doc, baosPDF);
doc.addAuthor(this.getClass().getName());
doc.addCreationDate();
doc.addProducer();
doc.addCreator(this.getClass().getName());
doc.addTitle("This is a title.");
doc.addKeywords("pdf, itext, Java, open source, http");
doc.setPageSize(PageSize.LETTER);
HeaderFooter footer = new HeaderFooter(
new Phrase("This is a footer."),
false);
doc.setFooter(footer);
doc.open();
doc.add(new Paragraph(
"This document was created by a class named: "
+ this.getClass().getName()));
doc.add(new Paragraph(
"This document was created on "
+ new java.util.Date()));
String strServerInfo = ctx.getServerInfo();
if (strServerInfo != null)
doc.add(new Paragraph(
"Servlet engine: " + strServerInfo));
doc.add(new Paragraph(
"This is a multi-page document."));
doc.add( makeGeneralRequestDetailsElement(req) );
doc.newPage();
doc.add( makeHTTPHeaderInfoElement(req) );
doc.newPage();
doc.add( makeHTTPParameterInfoElement(req) );
catch (DocumentException dex)
baosPDF.reset();
throw dex;
finally
if (doc != null)
doc.close();
if (docWriter != null)
docWriter.close();
if (baosPDF.size() < 1)
throw new DocumentException(
"document has "
+ baosPDF.size()
+ " bytes");
return baosPDF;
* @param req HTTP request object
* @return an iText Element object
protected Element makeHTTPHeaderInfoElement(final HttpServletRequest req)
Map mapHeaders = new java.util.TreeMap();
Enumeration enumHeaderNames = req.getHeaderNames();
while (enumHeaderNames.hasMoreElements())
String strHeaderName = (String) enumHeaderNames.nextElement();
String strHeaderValue = req.getHeader(strHeaderName);
if (strHeaderValue == null)
strHeaderValue = "";
mapHeaders.put(strHeaderName, strHeaderValue);
Table tab = makeTableFromMap(
"HTTP header name",
"HTTP header value",
mapHeaders);
return (Element) tab;
* @param req HTTP request object
* @return an iText Element object
protected Element makeGeneralRequestDetailsElement(
final HttpServletRequest req)
Map mapRequestDetails = new TreeMap();
mapRequestDetails.put("Scheme", req.getScheme());
mapRequestDetails.put("HTTP method", req.getMethod());
mapRequestDetails.put("AuthType", req.getAuthType());
mapRequestDetails.put("QueryString", req.getQueryString());
mapRequestDetails.put("ContextPath", req.getContextPath());
mapRequestDetails.put("Request URI", req.getRequestURI());
mapRequestDetails.put("Protocol", req.getProtocol());
mapRequestDetails.put("Remote address", req.getRemoteAddr());
mapRequestDetails.put("Remote host", req.getRemoteHost());
mapRequestDetails.put("Server name", req.getServerName());
mapRequestDetails.put("Server port", "" + req.getServerPort());
mapRequestDetails.put("Preferred locale", req.getLocale().toString());
Table tab = null;
tab = makeTableFromMap(
"Request info",
"Value",
mapRequestDetails);
return (Element) tab;
* @param req HTTP request object
* @return an iText Element object
protected Element makeHTTPParameterInfoElement(
final HttpServletRequest req)
Map mapParameters = null;
mapParameters = new java.util.TreeMap(req.getParameterMap());
Table tab = null;
tab = makeTableFromMap(
"HTTP parameter name",
"HTTP parameter value",
mapParameters);
return (Element) tab;
* @param firstColumnTitle
* @param secondColumnTitle
* @param m map containing the data for column 1 and column 2
* @return an iText Table
private static Table makeTableFromMap(
final String firstColumnTitle,
final String secondColumnTitle,
final java.util.Map m)
Table tab = null;
try
tab = new Table(2 /* columns */);
catch (BadElementException ex)
throw new RuntimeException(ex);
tab.setBorderWidth(1.0f);
tab.setPadding(5);
tab.setSpacing(5);
tab.addCell(new Cell(firstColumnTitle));
tab.addCell(new Cell(secondColumnTitle));
tab.endHeaders();
if (m.keySet().size() == 0)
Cell c = new Cell("none");
c.setColspan(tab.columns());
tab.addCell(c);
else
Iterator iter = m.keySet().iterator();
while (iter.hasNext())
String strName = (String) iter.next();
Object value = m.get(strName);
String strValue = null;
if (value == null)
strValue = "";
else if (value instanceof String[])
String[] aValues = (String[]) value;
strValue = aValues[0];
else
strValue = value.toString();
tab.addCell(new Cell(strName));
tab.addCell(new Cell(strValue));
return tab;
}Hi, i've done all described in the posts, but i
don't know how to call the servlet, using the web
browser, and more, how can i call the servlet frrom
a button action? or hyperlink?
nks for the helpOk, I am not sure what you are trying to do. For these events you can
use the SessionBean. What do you want the servlet to do that the session bean can't?
I use the sessionbean because I don't know how to receive or respond to xmlhttpreq messages directly in my sessionbean. If you just need the standard http req/resp it doesn't seem like a servlet is needed. -
How to eliminate ^M in files thru java program
Hi guys,
SOS!!!
I need to know how to eliminate ^M from files using a java program. This question was posted many times, but no one answered the question. Does anyone know the answer. Post the answer if anyone knows it.
Thanks guys n gals.You need to create new strings with the /r stripped off
/** Takes a string, and replaces the replace text with new text.
* @param str String to replace into
* @param pattern Pattern of text to replace.
* @param replace What to replace it with.
* @return str with the replace text replaced with the new text.
protected static String replace(String str,String pattern, String replace) {
int s = 0;
int e = 0;
StringBuffer result = new StringBuffer();
while ((e = str.indexOf(pattern, s)) >= 0) {
result.append(str.substring(s, e));
result.append(replace);
s = e+pattern.length();
result.append(str.substring(s));
return result.toString();
} -
Oracle Calendar - UnsatisfiedLinkError: no csdkjni in java.library.path
Hi, all.
I deployed my test calendar application developed using Jdeveloper 10.1.3.0 (on Windows XP) to the Oracle 10.1.3. AS on a linux server, but the CalendarServer in on another installation (Collaboration Suite 10.1.2) on the same linux server.
When I try to executed the code that calls the calendar server I get this error:
500 Internal Server Error
javax.faces.el.EvaluationException: java.lang.UnsatisfiedLinkError: no csdkjni in java.library.path
I set the LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ORACLE_HOME/lib:$ORACLE_HOME/ocal/lib on the collaboration suite 10.1.2 installation.
When I try to run the code on my Jdeveloper I get the same error:
java.lang.UnsatisfiedLinkError: no csdkjni in java.library.path
In my windows machine I create a folder where I put the dll's and jar files that came from the collaboration suite windows installation, but I get always the same error
This is the code:
try
Api.init("calendar.ini", "calendar.log");
catch(Api.StatusException e)
System.out.println("init returned status'" + e.getMessage() + "'");
System.exit (1);
Is my approach correct? Because if i'm developing on Windows and I need dll's files to connect to the calendar server on linux, but when I deploy the application to the linux server those dll's are useless and cannot be used. So am I missing something here? Do I need anything else to get this to work?
Best Regards,
Rui1. Use 1 and only 1 of classes12.zip and ojbc14.jar; they have different versions of the same classes in them.
2. The Oracle OCI driver for JDBC uses .dll files or .so files from the Oracle client installation (as well as Oracle network configuration files, I think); most people use the thin driver instead to avoid this problem.
To use the thin driver, change your url, see here for details:
http://www.oracle.com/technology/tech/java/sqlj_jdbc/htdocs/jdbc_faq.htm#05_00
To stay with the OCI driver (not recommended), you need to have the appropriate Oracle client installation (or at least get the dlls or sos), and I think set additional environment variables, such as ORACLE_HOME and possibly LD_LIBRARY_PATH. I don't do this myself, so I can't give much more advice. -
Java Servlet BUG (Possibly)-Servlet classname replaces retrieved doc name
I created a test servlet (TestServlet.java) which reads data from a file which could be pdf/doc/xls/zip etc and presents the file to the user for download. When the user clicks on the save option to save the file the default name before the file extension of the file in the save dialog box is always TestServlet. i.e. If the file being downloaded is BEA.doc the default name in the save dialog box is TestServlet.doc
The contents of the file(data in the file) are correct but the default name should be BEA.doc and not TestServlet.doc. I get the same result if the file is a pdf/xls or any other file type which is being downloaded.
We tested this in BEA Weblogic 8.1 and Tomcat and get the same results both places so this issue is not application server specific and seems like a bug to us.
The TestServlet.java file is below
package com.test;
import java.io.*;
import java.util.*;
import javax.servlet.http.*;
public class TestServlet extends HttpServlet
private String fileName = "c:/BEA.doc";
private FileInputStream rd;
private ByteArrayOutputStream wr;
byte[] buf = new byte[8192]; //buffer size
byte[] fileData;
public void doGet(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, java.io.IOException
doPost(request,response);
public void doPost(javax.servlet.http.HttpServletRequest request, javax.servlet.http.HttpServletResponse response) throws javax.servlet.ServletException, java.io.IOException
int count = 0;
try
File theFile = new File(fileName);
if (theFile.exists())
try
rd = new FileInputStream(fileName);
wr = new ByteArrayOutputStream();
while ((count = rd.read(buf)) > -1)
wr.write(buf, 0, count);
rd.close();
fileData = wr.toByteArray();
response.setContentType("application/msword");
OutputStream sos = response.getOutputStream();
sos.write(fileData);
sos.flush();
sos.close();
catch(Exception ex)
System.out.println(ex.getMessage());
else
response.setContentType("text");
response.getWriter().write("no data");
catch (Exception e)
e.printStackTrace();
} I get the same results. i.e. The name of the document downloaded by the servlet is TestServlet.doc instead of BEA.doc which is what I have in c:\BEA.doc.The web browser downloading this knows nothing about the file you are loading from disk and sending via the servlet. All it knows is that it requested via Http on the url TestServlet, and is getting something in return.
A quick google pulled up this link: http://builder.com.com/5100-6370-1027645.html
You might try this:
response.setHeader("Content-Disposition","inline;filename=\"BEA.doc\"");
good luck,
evnafets -
Java.io.EOFException in Object file transfer
Greetings,
I am having a problem sending a file across a network. At one point it was working, however I am not sure where along the way it became broken.
Stack Trace:
java.io.EOFException
at java.io.ObjectInputStream$PeekInputStream.readFully(Unknown Source)
at java.io.ObjectInputStream$BlockDataInputStream.readShort(Unknown Sour
ce)
at java.io.ObjectInputStream.readStreamHeader(Unknown Source)
at java.io.ObjectInputStream.<init>(Unknown Source)
at WBServer.unpackVectors(WBServer.java:283)
at fileListener.run(WBServer.java:374)
public void getWBContent(String hid) throws java.rmi.RemoteException //<- Send all object vectors and relevant integers...
setPageNum(pageCount-1);
HID=hid;
packVectors(null);
new Thread() {
public void run(){
try{javax.swing.SwingUtilities.invokeLater(
new Runnable(){
public void run(){
try{ //Yes...
java.net.Socket s = new java.net.Socket(HID, 1113); //<- Make a network port
java.io.BufferedWriter sos = new java.io.BufferedWriter(new java.io.OutputStreamWriter(s.getOutputStream())); //<-Open a stream
sos.write("vectordata.dat"); //<-Send the name of the file
sos.close(); //<- Close the stream
s.close(); //<- Close the port
String anchor = getClass().getResource("WBServer.class").getPath();
java.net.Socket ns = new java.net.Socket(HID, 1113); //<- Open a new port to the same place
java.io.FileInputStream fio = new java.io.FileInputStream(anchor.substring(0, anchor.lastIndexOf('/')+1)+"vectordata.dat"); //<- Open the file to stream
//java.io.DataInputStream dia = new java.io.DataInputStream(fio); //<- Open the stream to read
java.io.BufferedInputStream bia = new java.io.BufferedInputStream(fio);
java.io.BufferedOutputStream boa = new java.io.BufferedOutputStream(ns.getOutputStream());//<- Open the data stream for the port
int read=0; //<- Byte Read Counter
byte[] fbuffer = new byte[1024]; //<- Byte Read Buffer
boolean EOF=false;
while(!EOF){ //<- Until we reach the end of the stream...
try{read=bia.read(fbuffer);
boa.write(fbuffer, 0, read);} //<- ...send the number of bytes stored in the buffer at the time.
catch(java.io.EOFException e){ EOF=true;}
boa.flush(); //<- Make sure the stream is cleared
boa.close(); //<- Close the port's stream
bia.close(); //<- Close the reading stream
fio.close(); //<- Close the file's stream
ns.close(); //<- Close the port...
catch(Exception e)
{SimpleFormatter sf = new SimpleFormatter();
LogRecord tempLog = new LogRecord(Level.WARNING, "File Send Error: "+e.toString());
sf.format(tempLog);
logFile.publish(tempLog);}
catch(Exception e)
{SimpleFormatter sf = new SimpleFormatter();
LogRecord tempLog = new LogRecord(Level.WARNING, "Error running getWBContent() send file thread: "+e.toString());
sf.format(tempLog);
logFile.publish(tempLog);}
}}.start();
public void packVectors(String filePath) { //This function writes all the objects in memory to a file for transport.
String anchor = getClass().getResource("WBServer.class").getPath();
if(filePath==null){filePath=anchor.substring(0, anchor.lastIndexOf('/')+1)+"data/vectordata.dat";}
System.out.println("From packVectors(): "+filePath);
java.io.File ovFile = new java.io.File(filePath); //Setup out data file
try{if(!ovFile.exists()){ovFile.createNewFile();}else{ovFile.delete(); ovFile.createNewFile();} //If it's not there...make one. If it is, delete it and make a new one.
java.io.ObjectOutputStream oojStream = new java.io.ObjectOutputStream(new java.io.FileOutputStream(ovFile)); //Ready the writer for writingness.
oojStream.writeObject(PageHolder); //Pages to file...
oojStream.writeObject(ImgPage); //Images for the Pages to file...
oojStream.writeObject(WBStack); //Current object stack to file...
oojStream.writeInt(objCount); //Current object count to file...
oojStream.writeInt(pageCount); //Current page count to file...
oojStream.writeInt(pageCount-1); //Current page number to file...
oojStream.flush(); //<-Commit final write operations...
oojStream.close();} //<- Close the file...
catch(Exception e)
{SimpleFormatter s = new SimpleFormatter();
LogRecord tempLog = new LogRecord(Level.WARNING, "Persistence save error: "+e.toString());
s.format(tempLog);
e.printStackTrace();
logFile.publish(tempLog);}
public void unpackVectors(String filePath) { //This function reads objects from a file that was previously written by packVectors().
String anchor = getClass().getResource("WBServer.class").getPath();
if(filePath==null){filePath=anchor.substring(0, anchor.lastIndexOf('/')+1)+"data/vectordata.dat";}
System.out.println("From unpackVectors(): "+filePath);
java.io.File ivFile = new java.io.File(filePath); //Setup the file to read from.
try{if(!ivFile.exists()){ //If the file doesn't exist, we're screwed...
SimpleFormatter s = new SimpleFormatter();
LogRecord tempLog = new LogRecord(Level.WARNING, "Persistence load error: File vectordata.dat does not exist!");
s.format(tempLog);
logFile.publish(tempLog);
}else{
java.io.ObjectInputStream iojStream = new java.io.ObjectInputStream(new java.io.FileInputStream(ivFile)); //Ready the reader for readingness...
PageHolder = (java.util.Vector)iojStream.readObject(); //Pages from file...
ImgPage = (java.util.Vector)iojStream.readObject(); //images for Pages from file...
WBStack = (java.util.Vector)iojStream.readObject(); //Current object stack from file...
objCount = iojStream.readInt(); //Current object count from file...
pageCount = iojStream.readInt(); //Current number of pages from file...
pageNum = iojStream.readInt();//iojStream.readInt(); //Current page number from file...
iojStream.close();}} //Close the file...
catch(Exception e)// We screwed up somewhere.....
{SimpleFormatter s = new SimpleFormatter();
LogRecord tempLog = new LogRecord(Level.WARNING, "Persistence load error: "+e.toString());
s.format(tempLog);
e.printStackTrace();
logFile.publish(tempLog);}
class fileListener extends Thread {
public fileListener(WBServer wb) //<-Constructor
try{ms = new java.net.ServerSocket(1113);} //<- Listener socket
catch(Exception e){e.toString();}
server = wb; //<- Referencial variable back to the server
public fileListener(WBServer wb, int port) //<- Constructor with port
try{ms = new java.net.ServerSocket(port);} //<- Listener socket
catch(Exception e){e.toString();}
server = wb; //<- Referencial variable back to the server
public void run() {
String filepath; //<- Holder for file path operations...
while(!disconnect) {
try{java.net.Socket cs = ms.accept(); //<- Accept incoming request.
server.fileStat = 1;
java.io.BufferedReader str = new java.io.BufferedReader(new java.io.InputStreamReader(cs.getInputStream())); //<- Open communications with client
String checkStr = str.readLine(); //<- Grab the file name from the client
System.out.println(checkStr);
String anchor = getClass().getResource("fileListener.class").getPath();
if(checkStr.equalsIgnoreCase("vectordata.dat"))
{filepath=anchor.substring(0, anchor.lastIndexOf('/')+1)+"data/"+checkStr;}
else{filepath=anchor.substring(0, anchor.lastIndexOf('/')+1)+"scans/"+checkStr;}
System.out.println(filepath);
str.close(); //<- Close communications with client
cs.close(); //<- Close socket
//System.out.println("Recieved File Name: "+filepath);//Debugging
java.io.File inFile = new java.io.File(filepath); //<- Make a file in memory on the host computer with the specified name.
inFile.createNewFile(); //<- Create an empty file of that name within the local file system
java.net.Socket ds = ms.accept(); //<- Accept incoming request
java.io.FileOutputStream fos = new java.io.FileOutputStream(inFile); //<- Open file stream for writing...
java.io.BufferedInputStream bis = new java.io.BufferedInputStream(ds.getInputStream()); //<- Open communications with client for data/
byte[] fbuffer = new byte[1024]; //<- Byte read buffer
int read=0; //<- Byte read counter
server.fileStat = 2;
while((read=bis.read(fbuffer))!=-1){ //<-Until we reach the end of the stream...
fos.write(fbuffer, 0, read); System.out.print(read+":");}// <- ...write the buffer to the file.
fos.flush(); //<- Clear the file stream
fos.close(); //<- Close the file stream
bis.close(); //<- Close the data stream from the client
if(checkStr.equalsIgnoreCase("vectordata.dat"))
{server.fileStat = 3; // ...otherwise, we show loading...
server.unpackVectors(null);
server.sendRefresh(true);
server.fileStat=0;}
else //If it's the sych data, unpack it and load the data
{server.fileStat = 3; // ...otherwise, we show loading...
server.passImage(inFile); //<-Load the file into the image vector...
server.sendRefresh(true); //<- Ensure that the client updates properly
server.fileStat=0;}
ds.close(); //<- Close the client socket
catch(Exception e){e.toString();}
//System.out.println("Listener Shutdown");//Debugging
try{ms.close();} catch(Exception e){e.toString();} //<- Close the listening socket
public boolean disconnect = false; //<- Flag for killing the "file server" prematurely
private static WBServer server; //<- Referencial variable to the whiteboard server
private java.net.ServerSocket ms; //<- Listener socket
}I'm stumped as to where it is going wrong. I know that packVectors() and unpackVectors() both work, as they are used in a local save function. I suspect the problem lies between the getWBContent(String hid) and the fileListener class, but I am not certain where. Any help would be appreciated.First, you are expecting read(buffer,offset,count) to throw an EOFException. It doesn't, it returns -1 at EOF.
Second, you are using a Writer to write binary data (resulting from serialization). This will corrupt it. Use an OutputStream.
Third, what I really don't get is why would you (i) write local data to a file and (ii) start a new thread to (iii) read it back and (iv) send it over not one but two sockets, when you could just return the data as the result of the remote method without the file, the thread, or the Sockets.
And in any case this sort of thing is most definitely not what SwingtUtilites.invokeLater() is for. (What it is for is updating Swing components and ensuring it all happens in the Swing thread, being the only correct way to write Swing code as Swing is not thread-safe by design.) If your server has a Swing GUI, which doesn't seem likely, it will stall for the duration of all this I/O. If it doesn't, why start the Swing thread at all?
Just define a serializable object that contains all the data you are passing to writeObject()/writeInt() and return it as the result of the remote method.
You will save yourself a lot of latency and code in the process, and you could reduce all this to about six lines of code, something like:
return new WBContent(
PageHolder, //Pages to file...
ImgPage, //Images for the Pages to file...
WBStack, //Current object stack to file...
objCount, //Current object count to file...
pageCount, //Current page count to file...
pageCount-1 //Current page number to file...
); where WBContent is a serializable class with the appropriate members and constructor, and is the return type of getWBContent(). -
IIOP Java mode - proxy classes generation
Hello,
I have been able to use Jave-mode for call-in from a Java client to a
Forte Server. Among the generated Java files, I observe that for each
service object, there is also an IIOP proxy class - Java file with the
_pxy name appended to the front.
for example: ServerClass is a Tool Class, and there is a service object
based on it. The "Make Distribution" process has generated the
corresponding pxyServerClass.java also. It may be that the proxy
files are generated for all Forte classes. I am not sure.
The whole scheme of things has worked perfectly well for a simple test
project that I wrote.
But, there is another Plan, our Project's main Plan, that has some
Supplier Plans, which in turn have a few other Supplier Plans, etc, the
generated Java files does not have a single proxy class! I am unable to
figure out why. Are there places that I should look for?
In all, there are 2 DB Resouce Service Objects, 5 TOOL SOs in our
application configuration. I tried switching the Distributed property
from Allowed to IsDefault, but that didn't alter anything.
Any help will be greatly appreciated.
On a related note:
When using IDL mode...
Operator overriding is not allowed when using IDL2Java compiler of
VisiBroker. You have class B that extends A. A method is redefined may
be, with say different parameters. The .idl file won't compile, aborts
with an error "attempt to redefine operator/varialbe". I heard from a
colleague of mine (in fact I saw it compiling on his machine) that
OrbixWeb allows this. This seemed like a basic requirement, it was hard
to imagine that IDL syntax would not support that. Now, I realise that
it is a problem with Visigenic product. Have other developers come
across this problem? Is there a workaround?
Thanks,
Kishore Puvvada
International Business Corporation
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Searchable thread archive <URL:http://pinehurst.sageit.com/listarchive/>Hi Mark!!
I would suggest you to check the components created for the Interface. The main components of an Enterprise beans are like this:
<Interface>_PortTypeImplRemote
<Interface>_PortTypeImplRemoteHome
<Interface>_PortTypeImplLocal
<Interface>_PortTypeImplLocalHome
<Interface>_PortTypeBean
You can decompile if you have the Class file. It may be possible that the file got corrupted while creation.
Decompile the file if you have only the class file(Use DJ Compiler or JAD.exe). This will tell you whether the error is with the bytecode of the bean class.
Cheers!!
AnuraG -
Need help, I am terrible with Java, can someone help.
Please can someone help me with this program. I am in a JAVA programming class and I am having a heck of a time. I am still having a problem with the basic concepts of JAVA but the teacher continues to give us difficult assignments with out any help. Here is the assignment:
Write a class named 'Player' that has two attributes, 'name' (which has to be a 'Sting') and 'rating' (which has to be a 'int'). Then write an application class named "PlayerRating" that first creates an array consisting of 5 player objects, then display the list three times; first unsorted, then sorted by Name and finally sorted by rating.
Must use the Bubble Sort Program and do NOT use Array.sort.
Example output:
Unsorted
Name: Rating:
Mickey Mantle 5
Ty Cobb 3
Babe Ruth 4
Pete Rose 3
Sammy Sosa 1
Sorted by Name
Name: Rating:
Babe Ruth 4
Mickey Mantle 5
Pete Rose 3
Sammy Sosa 1
Ty Cobb 3
Sorted by Rating
Name: Rating:
Sammy Sosa 1
Pete Rose 3
Ty Cobb 3
Babe Ruth 4
Mickey Mantle 5
Here is what I have and it is not much, cause I am so lost:
1 import java.io.*;
2 import javax.swing.*;
3 import java.text.*;
4 import java.lang.*;//String[][];
5 import java.util.*; //ArrayList;
6
7
8 public class Player
9 {
10 public static void main (String [][]args)
11 {
12
13 int maxSize = 100; //array size
14 // String[][] s = new String[100][100]; //Default values: null
15 boolean [] b = new boolean[4]; //default values: false
16 int[][] i = new int[10][10]; //default values: 0
17
18
19 PlayerRating arr; //reference to array
20 //arr = new PlayerRating(maxSize);
21 Sting player[]={"Mickey Mantle 5","Ty Cobb 3"
22 ,"Babe Ruth 4","Pete Rose 3","Sammy Sosa 1"};
23
24
25 }
26 }
Here is all I have on the second program:
public class PlayerRating
public void PlayerRating (int Max)
int[][] i = new int[10][10];
Please help I am totally lost.You repeat code, you should do a generic bubble sort with comparators, or declare class as Comparable. You can see how String class is Comparable, furthermore it has a final static Comparator for CASE_INTENSENSITIVE_ORDER.
class User implements Comparable<User>{
public static final java.util.Comparator<Cliente> RATING_COMPARATION=new java.util.Comparator<Cliente>(){
public int compare(User u1,User u2){
int comp=u1.rating-u2.rating;
return comp==0?u1.name.compareTo(u2.name):comp;
private String name;
private int rating;
public User(String name, int rating){
setName(name);
setRating(rating);
public String getName(){
return name;
public void setName(String name){
this.name = name;
public int getRating(){
return rating;
public void setRating(int rating){
this.rating = rating;
// Compare users first by name and last by rating;
public int compareTo(User anotherUser){
int comp=name.compareTo(anotherUser.name);
return comp==0?rating-anotherUser.rating:comp;
public void equals(Object o){
if(this==o)
return true;
if(o instanceof User){}
User anotherUser=(User)o;
return name.equals(anotherUser.name)&&rating==anotherUser.rating;
return false;
public int hashCode(){
return name.hashCode()+rating<<16;
public class Sorting{
public <E extends Comparable<E>>static void bubleSort(E[] arr){
for(int i = 0; i < arr.length - 1; i++){
for(int j = arr.length - 1; j > i; j--){
if(arr[j].compareTo(arr[j - 1])<0)
swap(arr,j,j-1);
public static<E> void bubleSort(E[] arr,Comparator<E> cmp){
for(int i = 0; i < arr.length - 1; i++){
for(int j = arr.length - 1; j > i; j--){
if(cmp.compare(arr[j],arr[j-1]) < 0)
swap(arr,j,j-1);
private static void swap(Object[] arr,int x,int y){
Object tmp=arr[x];
arr[x]=arr[y];
arr[y]=tmp;
public static void main(String[] args){
User[] arr = new User[5];
arr[0] = new User("Mickey Mantle", 5);
arr[1] = new User("Ty Cobb", 3);
arr[2] = new User("Babe Ruth", 4);
arr[3] = new User("Pete Rose", 3);
arr[4] = new User("Sammy Sosa", 1);
System.out.println("Sorting by Name : ");
bubleSort(arr)
System.out.println(Arrays.toString(arr));
System.out.println("Sorting by Rating : ");
bubleSort(arr,User.RATING_COMPARATION);
System.out.println(Arrays.toString(arr));
} -
Need help : how to send 3 parameters over http using Java POST
I am trying to sending some data to agency company over http using Java POST
They need 3 parameters and some contents like below
1. Cmd : cmd=_RequestInsertNewLead
2 Live : False
3 XMLData : 3C%3Fxml+version%3D%........
I already have XML done ,but I don't know how to send these guy over http
is that like
this.out = new DataOutputStream(os);
out.writeBytes("Cmd");
out.writeBytes(" cmd=_RequestInsertNewLead");
out.writeBytes(" Live ");
out.writeBytes("False");
anyone could give help :)First of all, are you getting any exception?
You didn't put much logging information in your code.
You can also try this.Instead of doing sos.println(".....") try to build the output string using string buffer.
Like:
StringBuffer sb = new StringBuffer();
sb.append("Some output");
sb.append("More output");
sos.print(sb.toString());
sos.flush();Let me know if this works.
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