Import classes error

Hi
i am new to servlet also and i having compiling my servlet.
this is my code:
import javax.servlet.*;
import javax.servlethttp.*;
import java.io.*;
import java.util.*;
public class Index extends HttpServlet
String path = "http://faculty.cs.tamu.edu/yurttas/";
String builder;
String url;
     //i handling a web form where i get the path
     public void doPost(HttpServletRequest request, HttpServletRespone response)
               throws IOExcepction, ServletException
     Enumeration e = request.getParameterNames();
     while (e.hasMoreElements())
          String name = (String) e.nextElement();
          String builder = builder + request.getParameter(name);
     url = path + builder;
     //starts making the html file
     response.setContentType("text/html");
     PrintWriter out = response.getWriter();
     //head
     out.println("<html>");
     out.println("<head>");
     out.println("<SCRIPT LANGUAGE=JavaScript>");
     out.println("window.location.href =\" " + url + "\" ;");
     out.println("</SCRIPT>");
     out.println("</head>");
     //body
     out.print("<body>");
     out.print("</body>");
     out.print("</html>");
     }//end doPost
and this are my errors:
Index.java:1: package javax.servlet does not exist
import javax.servlet.*;
^
Index.java:2: package javax.servlethttp does not exist
import javax.servlethttp.*;
^
Index.java:11: cannot resolve symbol
symbol : class HttpServlet
location: class Index
public class Index extends HttpServlet
^
Index.java:18: cannot resolve symbol
symbol : class HttpServletRequest
location: class Index
public void doPost(HttpServletRequest request, HttpServletRespone response)
^
Index.java:18: cannot resolve symbol
symbol : class HttpServletRespone
location: class Index
public void doPost(HttpServletRequest request, HttpServletRespone response)
^
Index.java:19: cannot resolve symbol
symbol : class IOExcepction
location: class Index
throws IOExcepction, ServletException
^
Index.java:19: cannot resolve symbol
symbol : class ServletException
location: class Index
throws IOExcepction, ServletException
^
7 errors
chris22@sun [~/web_home/distance/hwk01/] %
i am compiling in a unix machine. What do you recommend me to do??

Hi,
The problem is in your classpath. Set your classpath properly.
bye for now
sat

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>
Hi,
We are generating java classes for the COM dll using JCOM com2java compiler.
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Originally posted by: nadeem.aboobaker.bea.com
"Walter Harley" <[email protected]> wrote in message
news:f2jet7$na1$[email protected]..
> "Nadeem Aboobaker" <[email protected]> wrote in message
> news:f2j2au$fi6$[email protected]..
>> Hello all,
>>
>> I am having issues creating a plugin as a JAR file, where the plugin
>> contains a nested JAR file.
>
>
> Hey, Nadeem.
>
> Yes, there are a lot of problems with trying to use nested jars in (and
> out of) Eclipse. You can look at
> https://bugs.eclipse.org/bugs/show_bug.cgi?id=145001 as a sort of
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>
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> plug-in depend on it, instead of trying to nest the jar within your
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> answer.
>
> Feel free to contact me offline or here on the newsgroup if needed.
>
> -walter
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import Reduction;
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First file
PortfoilioTotalsPanel.java
// Import the packages used by this class
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
// PortfolioTotalsPanel Class
public class PortfolioTotalsPanel extends JPanel
// Define the dark green color
public final static Color darkGreen = new Color( 0, 150, 40 );
// Create our labels
JLabel lblDollarChange = new JLabel( "Dollar Change:", JLabel.CENTER );
JLabel lblPercentChange = new JLabel( "Percent Change:", JLabel.CENTER );
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add( lblPercentChange );
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lblPercentChange.setForeground( Color.red );
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app.setPercentChange( new Float( "15" ) );
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frame.getContentPane().add( app, BorderLayout.CENTER );
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frame.setVisible( true );
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frame.addWindowListener
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Second Program
// ===========================================================================
// File: StockTablePanel.java
// Description: Sample file for Java 2 From Scratch
// ===========================================================================
// Import the libraries this application will use
import javax.swing.JTable;
import javax.swing.table.*;
import javax.swing.JScrollPane;
import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import java.awt.*;
import java.awt.event.*;
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stockTable.setPreferredScrollableViewportSize( new Dimension(620, 350) );
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for (int i = 0; i < 5; i++)
column = stockTable.getColumnModel().getColumn( i );
column.setPreferredWidth( stockTableModel.getColumnWidth( i ) );
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JScrollPane scrollPane = new JScrollPane( stockTable );
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add( scrollPane, BorderLayout.CENTER );
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// Computes the total dollar change for the current portfolio
public float getDollarChange()
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// Loop through all rows in the table
for( int i=0; i<stockTable.getRowCount(); i++ )
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float fMoneyWorth = 0;
// Loop through all rows in the table
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fMoneyWorth += fNumberOfShares.floatValue() * fLastSale.floatValue();
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frame.getContentPane().add( stockTablePanel, BorderLayout.CENTER );
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frame.setSize(640, 480);
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frame.setVisible( true );
// Set up a window listener to close the application window as soon as
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frame.addWindowListener
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public void windowClosing( WindowEvent e )
System.exit( 0 );
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class StockTableModel extends AbstractTableModel
// Create the columns for the table
final String[] strArrayColumnNames =
"Sym",
"Company Name",
"Last",
"Hi",
"Lo",
"Vol",
"#Shares",
"$Shares",
"Total",
"%Change",
"$Change"
// Create the rows for the table - hard coded for now!!
final Object[][] obArrayData =
// Row One
"SAMS", // Symbol
"Sams Publishing", // Company Name
new Float( 10 ), // Last Sale
new Float( 12 ), // High
new Float( 8 ), // Low
new Double( 2000000 ), // Volume
new Float( 100 ), // Number of Shares Owned
new Float( 7.5 ), // Purchase price per share
new Float( 1000 ), // Total Holdings
new Float( 33 ), // Percent change (increase!)
new Float( 250 ) // Dollar change
// Row Two
"Good", // Symbol
"Good Company", // Company Name
new Float( 50 ), // Last Sale
new Float( 52 ), // High
new Float( 45 ), // Low
new Double( 4000000 ), // Volume
new Float( 100 ), // Number of Shares Owned
new Float( 30 ), // Purchase price per share
new Float( 5000 ), // Total Holdings
new Float( 33 ), // Percent change (increase!)
new Float( 250 ) // Dollar change
// Row Three
"BAD", // Symbol
"Bad Company", // Company Name
new Float( 20 ), // Last Sale
new Float( 22 ), // High
new Float( 18 ), // Low
new Double( 2000000 ), // Volume
new Float( 500 ), // Number of Shares Owned
new Float( 50 ), // Purchase price per share
new Float( 10000 ), // Total Holdings
new Float( -60 ), // Percent change (increase!)
new Float( -25000 ) // Dollar change
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public int getColumnCount()
return strArrayColumnNames.length;
// Return the number of rows in the table
public int getRowCount()
return obArrayData.length;
// Get the column name from the strArrayColumnNames array for the "col"-th
// item
public String getColumnName( int col )
return strArrayColumnNames[col];
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// array at position (row, col)
public Object getValueAt( int row, int col )
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     // Build a new Float object with the product of the two
     Float fTotal = new Float
     // Note, these have to be converted to type "float" to
     // perform the multiplication
     fLastSale.floatValue() * fNumberOfShares.floatValue()
     // Return the result
     return( fTotal );
     // Percent change =
     // (Last Sale Price (2) / Purchase Price (7)) * 100% - 100 %
     case 9:
     Float fPercentChange = new Float
     ((fLastSale.floatValue() / fPurchasePrice.floatValue ()) * 100) - 100
     return fPercentChange;
     // Dollar Change =
     // LastSale*NumberOfShares - PurchasePrice * NumberOfShares
     case 10:
     Float fDollarChange = new Float
     ( fLastSale.floatValue() * fNumberOfShares.floatValue() )
     ( fPurchasePrice.floatValue() * fNumberOfShares.floatValue() )
     return fDollarChange;
     // We have included every case so far, but in case we add another
     // column and forget about it, let's just return its value
     default:
     return obArrayData[row][col];
// Return the class type, in the form of a Class, for the c-th column in
// the first (0-th indexed) element of the obArrayData object array
public Class getColumnClass( int c )
return getValueAt(0, c).getClass();
// Return true if the "col"-th column of the table is editable, false
// otherwise. The following columns are editable:
// Cell Description
// 0 Symbol
     // 6 Number of Shares Owned
     // 7 Purchase Price per Share
public boolean isCellEditable(int row, int col)
     // Check the column number
     if( col == 0 || col == 6 || col == 7 )
     return true;
     else
     return false;
// Set the value of the (row, col) element of the obArrayData to value
public void setValueAt(Object value, int row, int col)
     // Symbol
     if( col == 0 )
     // We need a string value - we can convert any
     // value to a string, so just assign it
     obArrayData[row][col] = value;
     // Number of Shares owned
     else if( col == 6 )
     // We need a number - either float or int
     obArrayData[row][col] = new Float( getNumberString( value.toString() ) );
     // Purchase Price per share
     else if( col == 7 )
     // We need a float
     obArrayData[row][col] = new Float( getNumberString( value.toString() ) );
     // Cell is not editable
     else
     return;
     // Notify our parent of the change
     fireTableCellUpdated(row, col);
// String getNumberString( String str )
// Read through str and return a new string with the numbers and decimal
// points contained in str
public String getNumberString( String str )
// Get str as a character array
char[] strSource = str.toCharArray();
// Create a buffer to copy the results into
char[] strNumbers = new char[strSource.length];
int nNumbersIndex = 0;
// Boolean to ensure we only have one decimal value
// in our number
boolean bFoundDecimal = false;
// Loop through all values of str
for( int i=0; i<strSource.length; i++ )
// Check for a digit or decimal point
if( Character.isDigit( strSource[i] ) )
strNumbers[nNumbersIndex++] = strSource;
else if( strSource[i] == '.' && !bFoundDecimal )
// Append the character to the String
strNumbers[nNumbersIndex++] = strSource[i];
// Note that we found the decimal value
bFoundDecimal = true;
// Build a new string to return to our caller
String strReturn = new String( strNumbers, 0, nNumbersIndex );
// Return our string
return strReturn;
// Return the column width of the column at index nCol
public int getColumnWidth( int nCol )
switch( nCol )
case 0:
case 2:
case 3:
case 4:
case 6:
case 7:
case 9:
return 50;
case 1:
return 125;
default:
return 75;
Third one that imports the previous two programs Classes
// Import the packages used by this class
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.*;
// Import our other components
import StockTablePanel;
import PortfolioTotalsPanel;
// StockTableTabPanel
public class StockTableTabPanel extends JPanel implements TableModelListener
// Create our panels
StockTablePanel stockTablePanel = new StockTablePanel();
PortfolioTotalsPanel portfolioTotalsPanel = new PortfolioTotalsPanel();
// Constructor
public StockTableTabPanel()
// Set our layout
setLayout( new BorderLayout() );
// Initialize the portfolio panel
updatePortfolioTotals();
// Add the child panels to our JPanel
add( stockTablePanel );
add( portfolioTotalsPanel, BorderLayout.SOUTH );
// Add our class as a table model listener for the stock table
// model so that we can update the portfolio totals panel
// whenever the table changes.
stockTablePanel.stockTableModel.addTableModelListener( this );
// TableModelListener: tableChanged
public void tableChanged(TableModelEvent e)
// Make sure it is our table that changed
if( e.getSource() == stockTablePanel.stockTableModel )
// Call our method to update the portfolio totals
updatePortfolioTotals();
// public updatePortfolioTotals
// Updates the portfolio totals panel labels based off of the values
// in the stockTablePanel
public void updatePortfolioTotals()
// Get the values from the stockTablePanel and send them
// to the portfolioTotalsPanel
portfolioTotalsPanel.setDollarChange( new Float( stockTablePanel.getDollarChange() ) );
portfolioTotalsPanel.setPercentChange( new Float( stockTablePanel.getPercentChange() ) );
// Main application entry point into this class
public static void main( String[] args )
// Create a JFrame object
JFrame frame = new JFrame( "Stock Table Tab" );
// Create an StockTableTabPanel Object
StockTableTabPanel app = new StockTableTabPanel();
// Add our StockTableTabPanel Object to the JFrame
frame.getContentPane().add( app, BorderLayout.CENTER );
// Resize our JFrame
frame.setSize( 640, 440 );
// Make our JFrame visible
frame.setVisible( true );
// Create a window listener to close our application when we
// close our application
frame.addWindowListener
     new WindowAdapter()
public void windowClosing( WindowEvent e )
System.exit( 0 );

Org.apache.jasper.JasperException Ambigous Class Error

I included two classes:
<% @page import = "com.myco.ejb.ThisBean" %>
<% @page import = "com.myco.ejb.session.ThisBean" %>
and received an org.apache.jasper.JasperException Ambigous Class Error on the second import. One is a cmp bean, the other is a session bean. I thought Sun wanted us to name our packages like this to aid in the prevention of duplicate class names (i.e., Windoz DLLitus). Shouldn't these classes be unique by the package name?

No, that's not redundancy. Are you using the fully qualified class name in your jsp:usebean tags?
like:
classname="com.mypackage.mybeans.MyBean"
And are you using the package statement properly in your source?
In the case that you are using two classes of the same name in one file the compiler has to have a means of distinguishing between the two. The only way for it to do so is to use the fully qualified name of the class in each case in which it is referenced. This means either in the jsp:usebean tag as shown above, or in such a case as:
com.mypackage.myclasses.MyClass theOb=new com.mypackage.myclasses.MyClass();
Awkward yes, but ambiguous No.
In the case where you are using only one class of a given name the import statement will be sufficient for the compiler to know that it is that which you fully qualify in the import statement.
Remember, all that the import statement does is provide the convenience of pre-clarifying exactly which class you'll be referring to when using the abbreviated class name only. Importing two classes of the same name defeats the purpose.
Good luck,
Brad

New syntax to import .class Files???

Using JDK 1.2.2 i coul import my own class files by typing
import ClassName;
Using the j2sdk1.4.0 compile I get the Error Message
`.` expected
Is there a new synatx for importing .class files???

Normally I don't help anyone under this username, but since the idiot Kayaman is here being his usual jerk-ness providing no meaningful help whatsoever (as usual), I'll let you in on the fact that 1.4 doesn't let you import un-packaged classes anymore. So just remove the import statement, or change your imported class into some kind of package.

PI 711 Installation: Loading of 'SAPNTAB' import package: error but no log

Hello,
I'm perfromong an installation of a SAP PI 7.11 ystem on windoows Server 2003 and Oracle 10.2 .
I've perfromed the installation of the DEV system without particular issue.
But now when tryning to install the QAS system , I can't finish the installation : Im' stuck in the import ABAP step ...
It is impossible to import the 'SAPNTAB' package. I couln't find the reason.
I've tried updating the R3load binary, rebooting the server, restarting the instalaltion from scratch but it didn't help.
Here I provide you the logs, maybe you can help me
SAPNTAB.log
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: START OF LOG: 20110223195542
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: sccsid @(#) $Id: //bas/711_REL/src/R3ld/R3load/R3ldmain.c#6 $ SAP
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: version R7.11/V1.4 [UNICODE]
Compiled Dec 14 2010 22:52:23
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe -i SAPNTAB.cmd -dbcodepage 4103 -l SAPNTAB.log -stop_on_error -loadprocedure fast
DbSl Trace: ORA-1403 when accessing table SAPUSER
(DB) INFO: connected to DB
(DB) INFO: DbSlControl(DBSL_CMD_NLS_CHARACTERSET_GET): UTF8
(DB) INFO: SVERS deleted/truncated #20110223195543
sapinst_dev.log
Syslib info about system call. OS message 109 (The pipe has been ended.
) after execution of system call 'ReadFile' with parameter ((read end of child process output pipe)), line (403) in file (synxcpipe.cpp).
WARNING    2011-02-23 19:56:12.607
           CJSlibModule::writeWarning_impl()
Execution of the command ""C:\Program Files\sapinst_instdir\NW71\INSTALL\SYSTEM\ORA\STD\AS\sapjvm\sapjvm_5\bin\java.exe" -classpath migmon.jar -showversion -Xmx1024m com.sap.inst.migmon.imp.ImportMonitor -sapinst" finished with return code 103. Output:
java version "1.5.0_14"
Java(TM) 2 Runtime Environment, Standard Edition (build 5.1.024)
SAP Java 64-Bit Server VM (build 5.1.024, Sep 4 2008 23:21:58 - 51_REL - optU - windows amd64 - bas2:106386 (mixed mode))
Import Monitor jobs: running 1, waiting 28, completed 0, failed 0, total 29.
Loading of 'SAPNTAB' import package: ERROR
Import Monitor jobs: running 0, waiting 28, completed 0, failed 1, total 29.
TRACE      2011-02-23 19:56:12.607
Function setMessageIdOfExceptionMessage: nw.programError
ERROR      2011-02-23 19:56:12.607
           CJSlibModule::writeError_impl()
CJS-30022 Program 'Migration Monitor' exits with error code 103. For details see log file(s) import_monitor.java.log, import_monitor.log.
import_monitor.log
TRACE: 2011-02-23 19:55:42 com.sap.inst.migmon.imp.ImportStandardTask preCreate
Parse of 'C:\Program Files\sapinst_instdir\NW71\INSTALL\SYSTEM\ORA\STD\AS\DDLORA.TPL' template file is started.
INFO: 2011-02-23 19:55:42 com.sap.inst.migmon.imp.ImportStandardTask preCreate
Parse of 'C:\Program Files\sapinst_instdir\NW71\INSTALL\SYSTEM\ORA\STD\AS\DDLORA.TPL' template file is successfully completed.
Primary key creation: after load.
Index creation: after load.
INFO: 2011-02-23 19:55:42
Data codepage 1100 is determined using TOC file 'E:\SAPCD\51036706\DATA_UNITS\EXP1\DATA\REPOSRC.TOC' for package 'REPOSRC'.
INFO: 2011-02-23 19:55:42
Version table 'SVERS' is found in STR file 'E:\SAPCD\51036706\DATA_UNITS\EXP3\DATA\SAPNTAB.STR' from package 'SAPNTAB'.
INFO: 2011-02-23 19:55:42
Data conversion tables 'DDNTF,DDNTF_CONV_UC,DDNTT,DDNTT_CONV_UC' are found in STR file 'E:\SAPCD\51036706\DATA_UNITS\EXP3\DATA\SAPNTAB.STR' from package 'SAPNTAB'.
TRACE: 2011-02-23 19:55:42 com.sap.inst.migmon.LoadTask run
Loading of 'SAPNTAB' import package is started.
TRACE: 2011-02-23 19:55:42 com.sap.inst.migmon.LoadTask processPackage
Loading of 'SAPNTAB' import package into database:
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe -i SAPNTAB.cmd -dbcodepage 4103 -l SAPNTAB.log -stop_on_error -loadprocedure fast
ERROR: 2011-02-23 19:55:45 com.sap.inst.migmon.LoadTask run
Loading of 'SAPNTAB' import package is interrupted with R3load error.
Process 'E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe -i SAPNTAB.cmd -dbcodepage 4103 -l SAPNTAB.log -stop_on_error -loadprocedure fast' exited with return code -1,073,741,819.
For mode details see 'SAPNTAB.log' file.
Standard error output:
sapparam: sapargv(argc, argv) has not been called!
sapparam(1c): No Profile used.
sapparam: SAPSYSTEMNAME neither in Profile nor in Commandline
WARNING: 2011-02-23 19:56:12
Cannot continue import because not all import packages with data conversion tables are loaded successfully.
WARNING: 2011-02-23 19:56:12
1 error(s) during processing of packages.
INFO: 2011-02-23 19:56:12
Import Monitor is stopped.
Edited by: Raoul Shiro on Feb 23, 2011 8:11 PM
Edited by: Raoul Shiro on Feb 23, 2011 8:12 PM

Hello,
Thank you for your answer.
I already opened a sap cutomer call, they answered that it it not a database issue,
I restarted the installationfriom scracth , but i still got the same error :
Here is the full content of the file SAPNTAB.log
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: START OF LOG: 20110225170643
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: sccsid @(#) $Id: //bas/711_REL/src/R3ld/R3load/R3ldmain.c#4 $ SAP
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: version R7.11/V1.4 [UNICODE]
Compiled Dec 22 2008 00:13:12
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe -ctf I E:\SAPCD\51036706\DATA_UNITS\EXP3\DATA\SAPNTAB.STR C:\Program Files\sapinst_instdir\NW71\INSTALL\SYSTEM\ORA\STD\AS\DDLORA.TPL SAPNTAB.TSK ORA -l SAPNTAB.log
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: job completed
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: END OF LOG: 20110225170643
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: START OF LOG: 20110225170643
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: sccsid @(#) $Id: //bas/711_REL/src/R3ld/R3load/R3ldmain.c#4 $ SAP
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe: version R7.11/V1.4 [UNICODE]
Compiled Dec 22 2008 00:13:12
E:\usr\sap\PIQ\SYS\exe\uc\NTAMD64\R3load.exe -i SAPNTAB.cmd -dbcodepage 4103 -l SAPNTAB.log -stop_on_error -loadprocedure fast
DbSl Trace: ORA-1403 when accessing table SAPUSER
(DB) INFO: connected to DB
(DB) INFO: DbSlControl(DBSL_CMD_NLS_CHARACTERSET_GET): UTF8
(DB) INFO: SVERS created #20110225170643
Regards.
Raoul

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