Cannot Debug Iterator Class

Hi,
I am getting error "type of termination: RABAX_STATE " when running a BSP page with TableView Iterator
I want to debug the iterator local class that I have created. However The control does not stop in the methods of this iterator class when I set a breakpint.
Can't we debug the iterator class ? how ?
Thanks
Anand

You must set an external/HTTP breakpoint in the class, and then the debugger should stop. Do not confuse it with internal breakpoints. Usually you should also activate system debugging. Check the documentation for details.

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I have my flash project working without problems, I reach a
point that i must add a document class, but when i do that i got
the following error:
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ActionScript"
The document class is in the same folder where the .fla file
is located.
Code compile without any error.
If I remove the document class my project work likes before.
For testing pourpouses the document class just do a
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Is a bug in flash? Anyone face this problem before?
Im using flash CS3 on windows Vista.
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Hi,
Here is the code, hope this helps.
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Iterator class

hi
I have created a program which uses a table view and iteratorclass to diaplay a table .but my program is not able to identify the iterator class ,i have created an iterator instance in my model class attributes ...am not getting any error but its just displaying the table ...here is the code........if its not correct please help me out with the write code..
<htmlb:tableView id            = "tc"
                 design              = "ALTERNATING"
                 headerText          = "Header Text"
                 onNavigate          = "onMyNavigate"
                 selectionMode       = "SINGLESELECT"
                 onRowSelection      = "onMyRowSelection"
                 table               = "<%=model->ITAB1%>"
                 iterator            = "<%=model->my_iterator%>"
                 visibleRowCount     = "15"   />
interface implementation.......
if_htmlb_tableview_iterator~get_column_definitions..............
field-symbols: <def> like line of p_column_definitions.
append initial line to p_column_definitions assigning <def>.
<def>-columnname = 'ebeln'.
<def>-title      = 'PO_NUMBER'.
append initial line to p_column_definitions assigning <def>.
<def>-columnname = 'EBELP'.
<def>-title      = 'PO_LINE_ITEM_NUMBER'.
append initial line to p_column_definitions assigning <def>.
<def>-columnname = 'matnr'.
<def>-title      = 'material_number'.
append initial line to p_column_definitions assigning <def>.
<def>-columnname = 'menge'.
<def>-title      ='quantity'.
<def>-edit = 'X'.
append initial line to p_column_definitions assigning <def>.
<def>-columnname = 'gewei'.
<def>-title      ='Unit Of Measurement'
<def>-edit = 'X'.
method if_htmlb_tableview_iterator~render_row_start .
m_row_ref ?= p_row_data_ref.
endmethod.
method if_htmlb_tableview_iterator~render_cell_start .
data :itab type zmy_tt.
field-symbols: <q> type itab ,
<v2> type i .
data: var2 type string .
assign p_row_data_ref->* to <q>.
case p_column_key.
    when 'quantity'.
      assign component p_column_key of structure <q> to <v2>.
      if <v2> is assigned .
        var2 = <v2> .
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Thanks ,
Raju

my_iterator instancevariable public type ref to zcl_it_details.
do u mean the itab1 thats passed to table view ?
it has values ,i have checked it in debugging mode.
in this method
if_htmlb_tableview_iterator~render_row_start
how the m_row_ref must be declared ? is it the structure type of itab1?
Message was edited by:
        raju msm

ServletException: Cannot create iterator for this collection

hi,
i am using struts action class with struts tags to display
data in jsp page.
in struts class i am return arraylist ,
same list i am displaing in jsp.
if Arraylist have data ,i am not getting error.
but if arraylist empty ,i am getting ServletException: Cannot create iterator for this collection
<logic:iterate id="result" name="fileList" >
<td><bean:write name="result" property="fileName"/></td>
</logic:iterate
can any one help how to avoid this exception?
thanks
siav

You could use <bean:size> to get the size of the list
and conditionally execute the logic:iterate,
something like this :
That will work, but not necessary. If the collection is empty, the iterate tag just skips - it doesnt throw an exception (tested)
The problem I guess is that the bean with the specified name is not a Collection. It may be a property of the bean that is a collection in which case the tag should have a property attribute.
ram.

Cannot convert type class java.lang.String to class oracle.jbo.domain.Clob

Cannot convert type class java.lang.String to class oracle.jbo.domain.ClobDomain.
Using ADF Business Components I have a JSFF page fragment with an ADF form based on a table with has a column of type CLOB. The data is retrieved from the database and displayed correctly but when any field is changed and submitted the above error occurs. I have just used the drag and drop technique to create the ADF form with a submit button, am I missing a step?
I am using the production release of Jdeveloper11G

Reproduced and filed bug# 7487124
The workaround is to add a custom converter class to your ViewController project like this
package oow2008.view;
import javax.faces.application.FacesMessage;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.ConverterException;
import oracle.jbo.domain.ClobDomain;
import oracle.jbo.domain.DataCreationException;
public class ClobConverter implements Converter {
     public Object getAsObject(FacesContext facesContext,
                               UIComponent uIComponent,
                               String string) {
       try {
         return string != null ? new ClobDomain(string) : null;
       } catch (DataCreationException dce) {
         dce.setAppendCodes(false);
         FacesMessage fm =
           new FacesMessage(FacesMessage.SEVERITY_ERROR,
                            "Invalid Clob Value",
                            dce.getMessage());
         throw new ConverterException(fm);
     public String getAsString(FacesContext facesContext,
                               UIComponent uIComponent,
                               Object object) {
       return object != null ?
              object.toString() :
              null;
}then to register the converter in faces-config.xml like this
<faces-config version="1.2" xmlns="http://java.sun.com/xml/ns/javaee">
<application>
    <default-render-kit-id>oracle.adf.rich</default-render-kit-id>
</application>
<converter>
    <converter-id>clobConverter</converter-id>
    <converter-class>oow2008.view.ClobConverter</converter-class>
</converter>
</faces-config>then reference this converter in the field for the ClobDomain value like this
          <af:inputText value="#{bindings.Description.inputValue}"
                        label="#{bindings.Description.hints.label}"
                        required="#{bindings.Description.hints.mandatory}"
                        columns="40"
                        maximumLength="#{bindings.Description.hints.precision}"
                        shortDesc="#{bindings.Description.hints.tooltip}"
                        wrap="soft" rows="10">
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Cannot locate Java class oracle.tip.adapter.db.DBWriteInteractionSpec

I have created a BPEL process in which i have used DB Adapter when i try to deploy the soa suite coposite i am getting the following error.
[09:36:10 PM] Error deploying archive sca_TicketBooking_rev1.0.jar to partition "default" on server soa_server1 [http://utl-7c8735e613f:8001]
[09:36:10 PM] HTTP error code returned [500]
[09:36:10 PM] Error message from server:
There was an error deploying the composite on soa_server1: [JCABinding] [TicketBooking.TicketBooking/1.0]Unable to complete unload due to: Cannot locate Java class oracle.tip.adapter.db.DBWriteInteractionSpec: Cannot locate Java class oracle.tip.adapter.db.DBWriteInteractionSpec.
[09:36:10 PM] Check server log for more details.
[09:36:10 PM] Error deploying archive sca_TicketBooking_rev1.0.jar to partition "default" on server soa_server1 [http://utl-7c8735e613f:8001]
[09:36:10 PM] #### Deployment incomplete. ####
[09:36:10 PM] Error deploying archive file:/D:/Personal/OracleWork/RnDProjects/TicketBooking/TicketBooking/deploy/sca_TicketBooking_rev1.0.jar
(oracle.tip.tools.ide.fabric.deploy.common.SOARemoteDeployer)
I already created the data source and JNDI Name in the DBAdapter but still getting the error while deploying the application.
One mistake that i think i have made after creating the data source now the DBAdapter.rar file taking the path as follows.
Source Path: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ was\ DbAdapter. rar
Deployment Plan: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ was\ Plan. xml
initially the path was as follows:
Source Path: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ DbAdapter. rar
Deployment Plan: C:\ Oracle\ Middleware\ Oracle_SOA1\ soa\ connectors\ Plan. xml
Please help me i have googled a lot but can't find the answer anywhere.
Thanks in advance

Mate ,
Just check the health status and state of DB Adapter in the deployments of WLAdminConsole.
If its inactive , redeploy and update it ,also make sure its targeted to the right server.

PLEASE HELP: cannot resolve symbol class

it's showing me the error on the following lines 7 and 9
it says cannot resolve symbol class Name and cannot resolve symbol class Phone
I also have a package name addressBook and it contains two files Entry.java and Address.java
Here is the code:
import java.io.*;
import addressBook.*;
public class AddressDr
     public static void main(String[] args)throws IOException
          Name name;
          Address address;
          Phone phone;
          Entry entry;
          String first, last, middle, street, city, state, zip;
          int areaCode, number;
          BufferedReader in;
          in=new BufferedReader(new InputStreamReader(System.in));
          PrintWriter outFile;
          outFile=new PrintWriter(new FileWriter("Entries"));
          System.out.println("Quit entered fot the first name ends the " + "application.");
          System.out.print("Enter first name: ");
          first=in.readLine();
          while (first.compareTo("Quit") !=0)
               System.out.print("Enter last name: ");
               last=in.readLine();
               System.out.print("Enter middle name: ");
               middle=in.readLine();
               name=new Name(first, last, middle);
               System.out.print("Enter street address: ");
               street=in.readLine();
               System.out.print("Enter city: ");
               city=in.readLine();
               System.out.print("Enter state: ");
               state=in.readLine();
               System.out.print("Enter ZIP code: ");
               zip=in.readLine();
               address=new Address(street, city, state, zip);
               System.out.print("Enter areaCode: ");
               areaCode = Integer.parseInt(in.readLine());
               System.out.print("Enter number: ");
               number=Integer.parseInt(in.readLine());
               phone=new Phone(areaCode, number);
               entry= new Entry(name, address, phone);
               entry.writeToFile(outFile);
               System.out.print("Enter first name: ");
               first=in.readLine();
          outFile.close();
}

OK. Here is how I did it.
I have AddressDr which is Address driver.
I have two files Address and Entry which in package addressBook.
AddressDr:
import java.io.*;
import addressBook.*;
public class AddressDr
     public static void main(String[] args)throws IOException
          Name name;
          Address address;
          Phone phone;
          Entry entry;
          String first, last, middle, street, city, state, zip;
          int areaCode, number;
          BufferedReader in;
          in=new BufferedReader(new InputStreamReader(System.in));
          PrintWriter outFile;
          outFile=new PrintWriter(new FileWriter("Entries"));
          System.out.println("Quit entered fot the first name ends the " + "application.");
          System.out.print("Enter first name: ");
          first=in.readLine();
          while (first.compareTo("Quit") !=0)
               System.out.print("Enter last name: ");
               last=in.readLine();
               System.out.print("Enter middle name: ");
               middle=in.readLine();
               name=new Name(first, last, middle);
               System.out.print("Enter street address: ");
               street=in.readLine();
               System.out.print("Enter city: ");
               city=in.readLine();
               System.out.print("Enter state: ");
               state=in.readLine();
               System.out.print("Enter ZIP code: ");
               zip=in.readLine();
               address=new Address(street, city, state, zip);
               System.out.print("Enter areaCode: ");
               areaCode = Integer.parseInt(in.readLine());
               System.out.print("Enter number: ");
               number=Integer.parseInt(in.readLine());
               phone=new Phone(areaCode, number);
               entry= new Entry(name, address, phone);
               entry.writeToFile(outFile);
               System.out.print("Enter first name: ");
               first=in.readLine();
          outFile.close();
Entry:
package addressBook;
import java.io.*;
public class Entry
     Name name;
     Address address;
     Phone phone;
public Entry(Name newName, Address newAddress, Phone phoneNumber)
     name = newName;
     address = newAddress;
     phone = phoneNumber;
public Name knowName()
     return name;
public Address knowAddress()
     return address;
public Phone knowPhone()
     return phone;
public void writeToFile(PrintWriter outFile)
     outFile.println(name.knowFirstName());
     outFile.println(name.knowLastName());
     outFile.println(name.knowMiddleName());
     oufFile.println(address.knowStreet());
     outFile.println(address.knowState());
     outFile.println(address.knowCity());
     outFile.println(address.knowZip());
     outFile.println(phone.knowAreaCode());
     outFile.println(phone.knowDigits());
Address:
package addressBook;
public class Address
     String street;
     String city;
     String state;
     String zipCode;
     public Address(String newStreet, String newCity, String newState, String zip)
          street=newStreet;
          city=newCity;
          state=newState;
          zipCode=zip;
     public String knowStreet()
          return street;
     public String knowCity()
          return city;
     public String knowState()
          return state;
     public String knowZip()
          return zipCode;
}

Cannot find symbol class Scanner

hi all
i'm defining a class within a project so i can use the class inside my program, but the line:
Scanner keyboard = new Scanner(System.in);generates an error with my compiler:
cannot find symbol class Scanner
please help

you aren't using jdk 5 or higher then. that's when scanner was added to the jdk.
download a modern jdk and you'll be fine.
%

Cannot find symbol class Usernamebean

hi i am new in j2ee
can some body help to give the solution.
i am always thankfull to everybody
i have a servlet where i am calling a bean of same package but servlet not compile giving that error
cannot find symbol class Usernamebean
servlet code
package ecomm; import java.sql.*; import javax.servlet.*; import javax.servlet.http.*; import java.io.*; import java.util.*; import bengalcom.*; public class Loginservelet extends HttpServlet { public void doGet(HttpServletRequest req,HttpServletResponse res) throws ServletException,IOException { try { String accnum=req.getParameter("username"); String pinnum=req.getParameter("password"); try { Class.forName("com.mysql.jdbc.Driver"); Connection dbcon=DriverManager.getConnection("jdbc:mysql://localhost/ecomm","root",""); PreparedStatement s = dbcon.prepareStatement("select * from vendordetails where email = ? and password = ? and blocking='No' "); s.setString(1,accnum); s.setString(2,pinnum); ResultSet result=s.executeQuery(); boolean rowfound=false; rowfound=result.next(); if(rowfound==true) { String vname=result.getString("fname"); String vid=result.getString("vid"); String email=result.getString("email"); UsernameBean nameBean =new UsernameBean(); nameBean.setFirstName(accnum); HttpSession session = req.getSession(true); session.setAttribute("vname",vname); session.setAttribute("vid",vid); session.setAttribute("email",email); RequestDispatcher dispatcher=getServletContext().getRequestDispatcher("/earea.jsp?vname=vname&vid=vid&email=email"); dispatcher.forward(req,res); dbcon.close(); } else{ RequestDispatcher dispatcher=getServletContext().getRequestDispatcher("/eblock.jsp"); dispatcher.forward(req,res); } } catch(ClassNotFoundException e) { } } catch(SQLException e) { System.out.println(e.toString()); } } public void doPost(HttpServletRequest req, HttpServletResponse res) throws ServletException, IOException { doGet(req, res); } }

Hi,
java is case sensitive, Check the case in class name.
Regards,
Ram

Cannot resolve symbol class graphics

does anyone know what the error
cannot resolve symbol class graphics means?
with this code i can't seem to call the graphics method to draw the line....any reason why?
import javax.swing.*;
import java.*;
public class LineDraw extends JFrame {
    public static void main(String[] args) {
        LineDraw ld = new LineDraw();
        ld.setSize(500,500);
        ld.setVisible(true);
        ld.enterVariables();
    public void init(){
    private int x1;
    private int x2;
    private int y1;
    private int y2;
    public void paint(Graphics g) {
        g.GetGraphics(g);
        super.paintComponent(g);
        g.drawLine(x1, y1, x2, y2);
    public void enterVariables() {
        x1 = Integer.parseInt(JOptionPane.showInputDialog("Enter x1:"));
        y1 = Integer.parseInt(JOptionPane.showInputDialog("Enter y1:"));
        x2 = Integer.parseInt(JOptionPane.showInputDialog("Enter x2:"));
        y2 = Integer.parseInt(JOptionPane.showInputDialog("Enter y2:"));
        repaint();
}

well the exact error message is ...by the way now that i think about it
if the graphics method shoudl not be part of the JFrame class then what method would i use to draw 2D Graphics?
--------------------Configuration: <Default>--------------------
C:\Documents and Settings\c1s5\My Documents\LineDraw.java:21: cannot resolve symbol
symbol : class Graphics
location: class LineDraw
public void paint(Graphics g)
^
1 error
Process completed.
and the exact code is
import javax.swing.*;
import java.*;
public class LineDraw extends JFrame {
    public static void main(String[] args) {
        LineDraw ld = new LineDraw();
        ld.setSize(1024,500);
        ld.setVisible(true);
        ld.enterVariables();
    private int x1;
    private int x2;
    private int y1;
    private int y2;
    public void paint(Graphics g)
        super.paintComponent(g);
        g.drawLine(x1, y1, x2, y2);
    public void enterVariables() {
        x1 = Integer.parseInt(JOptionPane.showInputDialog("Enter x1:"));
        y1 = Integer.parseInt(JOptionPane.showInputDialog("Enter y1:"));
        x2 = Integer.parseInt(JOptionPane.showInputDialog("Enter x2:"));
        y2 = Integer.parseInt(JOptionPane.showInputDialog("Enter y2:"));
        repaint();
}

Cannot reslove symbol class Date

I am trying to get a clock to show the time in my program. However, when I try to compile the program a "cannot resolve symbol class Date" error appears. I can't figure out where the problem in my program is. Here is my source code. I would appreciate any help.
import javax.swing.*;
import java.io.*;
import java.lang.*;
import java.awt.*;
import java.applet.*;
import java.awt.event.*;
//import java.util.*;
import java.math.*;
public class store
public static void main(String[] args)
String dataInput;
     dataInput = JOptionPane.showInputDialog(null, "Input item data: ");
JOptionPane.showMessageDialog(null, "" + dataInput);
EasyReader console = new EasyReader();
int i, j, k, inum, icom, min, nswaps; inum = 0; boolean swap = false;
double num[] = new double[100]; double dsum, T;
     do
     System.out.println(); System.out.println("Command Menu"); System.out.println();
     System.out.println("1 = Display the data");
System.out.println("2 = Bubble Sort the numbers");
System.out.println("3 = Selection Sort the numbers");
System.out.println("4 = Insertion Sort the numbers");
System.out.println("5 = Binary Search for a number");
System.out.println("0 = Exit the program"); System.out.println();
System.out.print("Enter Command - ");
icom = console.readInt(); System.out.println();
switch (icom)
case 1: // Display the data
               Display(inum, num);
               break;
case 2: // Bubble sort
               nswaps = 0;
               for (i = 0; i < (inum-1); i++ )
          for (j = (i+1); j < inum; j++)
                    if (num[i] > num[j])
                              T = num;
                         num[i] = num[j];
                         num[j] = T;
                         nswaps++;
               System.out.println("The number of swaps was - " + nswaps);
               Display(inum, num);
               break;
case 3: // Selection sort
               nswaps = 0;
               for (i = 0; i < inum - 1; i++) {
          min = i; swap = false;
for (j = i + 1; j < inum; j++)
     if (num[j] < num[min]) { min = j; swap = true; }
if (swap) {T = num[min];
          num[min] = num[i];
                    num[i] = T;
                    nswaps++;}
               System.out.println("The number of swaps was - " + nswaps);
               Display(inum, num);
               break;
case 4: // Selection sort
               nswaps = 0;
               for (i = 1; i < inum; i++)
               j = i; T = num[i];
                    while ((j > 0) && (T < num[j-1]))
          num[j] = num[j-1]; j--; nswaps++;
               num[j] = T; nswaps++;
               System.out.println("The number of swaps was - " + nswaps);
               Display(inum, num);
               break;
case 5: // Binary Search
               System.out.println("Your numbers will be sorted first");
               System.out.println();
               for (i = 1; i < inum; i++)
               j = i; T = num[i];
                    while ((j > 0) && (T < num[j-1]))
          num[j] = num[j-1]; j--;
               num[j] = T;
               System.out.print("Enter the number to locate - ");
               T = console.readDouble(); nswaps = 0; System.out.println();
               int left = 0, right = inum, middle; k = -1;
               while (left <= right)
                    middle = (left + right) / 2;
                    if (T > num[middle]) {left = middle + 1; nswaps++;}
                    else if (T < num[middle]) {right = middle - 1; nswaps++;}
                    else { k = middle; break; }
               if (k == -1) System.out.println("Your number was not located in the array");
               else System.out.println("Your number " + T + " is in position " + (k+1));
               System.out.println();
               System.out.println(nswaps + " comparisons were needed to search for your number");
               Display(inum, num);
               break;
     } while (icom != 0);
     public static void Display(int inum, double num[])
          {     int k;
               System.out.println();
               System.out.println("");
               System.out.println();
          for (k = 0; k < inum; k++)
          System.out.println((k+1) + " - " + num[k]);
     return;
class Clock extends Thread
     //A Canvas that will display the current time on the calculator
     Canvas Time;
     //A Date object that will access the current time
     private Date now;
     //A string to hold the current time
     private String currentTime;
     //The constructor for Clock, accepting a Label as an argument
     public Clock(Canvas _Time)
          Time = Time;          //Time is passed by reference, so Time
                                   //now refers to the same Canvas
          start();               //start this thread
     //The overriden run method of this thread
     public void run()
          //while this thread exists
          while (true)
               try
                    draw_clock();          //calls the draw_clock method
                    sleep(1000);          //puts this thread to sleep for one
                                             //second
               //catches an InterruptedException that the sleep() method might throw
               catch (InterruptedException e) { suspend(); }
               //catches a NullPointerException and suspends the thread if one occurs
               catch (NullPointerException e) { suspend(); }
     //A method to draw the current time onto the Time Canvas on the applet
     public void draw_clock()
          try
               //Obtains the Graphics object from the Canvas Time so that it can
               //be manipulated directly
               Graphics g = Time.getGraphics();
               g.setColor(Color.gray);          //sets the color of the Graphics object
                                                  //to gray for the rectangle background
               g.fillRect(0,0,165,25);          //fills the Canvas area with a rectangle
                                                  //starting at 0,0 coordinates of the Canvas
                                                  //and extending to the length and width
               g.setColor(Color.orange);     //sets the color of the Graphics object
                                                  //to orange for the text color
               get_the_time();                    //calls the get_the_time() method
               //calls the drawString method of the Graphics object g, which will
               //draw a string to the screen
               //Accepts a string and two integers to represent the coordinates
               g.drawString("Current Time - " + currentTime, 0, 17);
          //catches a NullPointerException and suspends the thread if one occurs
          catch (NullPointerException e) { suspend(); }
     //A method to obtain the current time, accurate to the second
     public void get_the_time()
          //creates a new Date object for "now" every time this is called
          now = new Date( );
          //integers to hold the hours, minutes and seconds of the current time
          int a = now.getHours();
          int b = now.getMinutes();
          int c = now.getSeconds();
          if (a == 0) a = 12;          //if hours are zero, set them to twelve
          if (a > 12) a = a -12;     //if hours are greater than twelve, make a
                                        //conversion to civilian time, as opposed to
                                        //24-hour time
          if ( a < 10)               //if hours are less than 10
               //sets the currentTime string to 0, appends a's value and a
               //colon
               currentTime = "0" + a + ":" ;
          else
               //otherwise set currentTime string to "a", append a colon
               currentTime = a +":";
          if (b < 10)                    //if minutes are less than ten
               //append a zero to string currentTime, then append "b" and a colon
               currentTime = currentTime + "0" + b + ":" ;
          else
               //otherwise append "b" and a colon to currentTime string
               currentTime = currentTime + b + ":" ;
          if (c < 10)                    //if seconds are less than ten
               //append a zero to string currentTime, then append "c" and a colon
               currentTime = currentTime + "0" + c ;
          else
               //otherwise append "c" to currentTime string
               currentTime = currentTime + c;
}          //end of the Clock class

Wow.
1) Please in future use the code tags to format code you post so that it doesn't think you have italics in your code and render it largely1 unreadable. Read this
http://forum.java.sun.com/help.jspa?sec=formatting
2) You commented out the import of java.util which is the problem you are complaining about.
3) Are you planning to stick all the code you ever write into the one source file? Why is all this stuff rammed together. Yoinks.

"cannot find symbol : class Scanner" error message

I have an error message that says:
"cannot find symbol : class Scanner"
I tried typing at the top of the program
import java.util.Scanner;but I still have the same error message.
What should I do ?
Thank you in advance

http://java.sun.com/j2se/1.5.0/docs/api/java/util/Scanner.html
Since:
1.5
look at the javadoc, it says since 1.5 so it's not there in earlier versions.
just a guess

Cannot resolve symbol class Scanner (Error)

For whatever reason I get the error message "cannot resolve symbol class Scanner" when trying to run this:
import java.io.*;
import java.util.*;
public class NameReversal
     public static void main(String args[])
          System.out.print("Enter your name: ");
          Scanner Reader = new Scanner(System.in);
          String first = Reader.next();
          String finl = Reader.next();
          int z = first.length();
          int v = finl.length();
          int y = z-1;
          int f = y-1;
          for(int i = y; i>=0; z--)
          System.out.print(first.charAt(1));
          System.out.print(" ");
          for(int p = f; p >= 0; p--)
          System.out.println(finl.charAt(p));
}

The Scanner class is in the JDK version 1.5 or later. You must be using an earlier version.

"cannot find symbol class studentList" error

Hi I get this error
"cannot find symbol class studentList", but this class is at the same file and also it is in the same folder. so what's wrong .. and I checked the spelling it's the same.
I should create an object named myList of type studentList
and second, I call method menu() and pass it myList as actual parameter.
so I called the function menu which is should be in the main too
like this
myList.menu();
and menu method accepts as parameter an object of type studentList. and display the menu for the user to choose..
here is part my program:
public class ListTest
{ public void menu(Student L) // accepts parameter
               System.out.println("");
            System.out.println("Choose a number between 1 to 4");
                  System.out.println("1-Print Info of A Student ");
            System.out.println("2-Print Info of All Students ");
           System.out.println("3-Display grade of A Specific student");
            System.out.println("4-Exit");
            System.out.println("");
          int choice = Stdin.readInteger();
          while (choice != 5)
         switch (choice) {
             case 1:
         L.PrintAStudent(int L);
         break;
          case 2:
        L.PrintAll();
        break;
          case 3:
          L.DisplayGPA();
          break;
             case 3:
            System.exit(0);
           break;
           default:
           System.out.println("wrong Number");
          System.out.println("Enter a number between 1 to 4 ");
           System.out.println("Enter 4 to Exit");
            break;
            System.out.println("");
            System.out.println("Choose a number between 1 to 4");
            System.out.println("1-Print Info of A Student ");
            System.out.println("2-Print Info of All Students ");
           System.out.println("3-Display grade of A Specific student");
            System.out.println("4-Exit");
            System.out.println("");
            choice = Stdin.readInteger();
     }// end method menu
     public static void main(String args[ ])
     { studentList myList = new studentList();//myList object is created
myList.menu();
                         }//end main
}// end of class ListTest


you have mentioned about the class "studentList" but that class is not to be found in the code you have pasted. its instead "ListTest". And the "menu" function seems to b a part of "ListTest" class. Can you provide the structure of the classes "studentList" and "Student" so that the problem can be more clearly understood?
also you are using the variable "Stdin" in the line int choice = Stdin.readInteger(); where as you have not declared this variable.
in the "switch" statement you are calling two different functions for the same case "3" where as it should be "case 3" and "case 4" respectively.
in the "main" you are calling the "menu" function without any parameter while you actually want to pass argument of type "studentList".

Cannot find package/class symbol

hello. i'm using netveans for the first time. i have a java application with 2 classes... pb.java with public class pb int package svr and cl.java with public class cl in package cli
that is..
file class package
pb pb svr
cl cl cli
pb.java compiles properly cl.java gioves error.
the error is in the following lines of code...
pb obj1 = new pb();
        pb obj2 = new pb();i'm trying to make an object fo type pb from cl.java. the error i get is...
cannot find symbol
class pb
location cli.cl
i alse tried puttin svr.pb instead of pb but no use.
the entire cose is as follows...
pb.java
* pb.java
* Created on December 4, 2006, 8:56 AM
package svr;
public class pb
    private double balance;
    private double []lt = new double [10];
    private int i=9;
    public void deposit(double amt)
        if(amt<=0)
            System.out.println("Enter amount greater than 0");
        else
            balance=balance+amt;
            if(i>=0)
                lt=amt;
else
for(int j=9;j>=0;j--)
lt[i]=lt[i-1];
lt[0]=amt;
public void withdraw(double amt)
if(amt<=0)
System.out.println("Enter amount greater than 0");
else
if(amt>balance)
System.out.println("Balance lower than amount entered");
else
balance=balance-amt;
if(i>=0)
lt[i]=-amt;
else
for(int j=9;j>=0;j--)
lt[i]=lt[i-1];
lt[0]=-amt;
public void bal()
System.out.println("Balance: "+balance);
public void lts()
System.out.println("Last 10 Transactions");
for(int j=i;j>10;j++)
System.out.println(lt[j]);
public void statement()
lts();
bal();
cl.java
* cl.java
* Created on December 4, 2006, 8:58 AM
package cli;
class cl
    public static void main(String[] args)
        pb obj1 = new pb();
        pb obj2 = new pb();
        obj1.deposit(100.50);
        obj1.statement();
        obj2.deposit(200.75);
        obj2.statement();
        obj1.withdraw(25.50);
        obj1.statement();
        obj2.withdraw(100.25);
        obj2.statement();

For a beginner these tools are worst, because they
hide all the stuff a programmer needs to know to find
his way around Java. They should spend a few weeks
with the command line and a good text editor before
switching.
Just because an IDE does something for you, it
doesn't mean you don't need to kno wwhat it does.
Unless you volunteer to handle all "how do I do X in
Netbeans/Eclipse/Whatever", JAR and classpath
questions posted here by newbies yourself.I suppose I can agree with that to some extent. I wouldn't suggest to anyone that they just blindly trust whatever code the IDE inserts automatically.
But there's nothing wrong about learning by example. The IDE is willing to teach proper syntax, and eclipse will give suggestions about capitalizing class names and making constants all-caps.
There are things that frustrate new programmers where an IDE will be helpful, especially if the entire API is uncharted territory.

Cannot Debug Iterator Class

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