Error:cannot resolve Symbol class"name"

when I have compiled Bean class named SlBean which has primary class named pk, I recevied following error message(I compiled pk class without error) :
cannot resolve symbol
symbol : class pk
location: class SlBean
public pk ejbCreate(

Sorry , its not classpath problem. You have to simply import the pk class if its in any package. I am assuming you have packaged your pk class with ejb jar file.
for eg. if your class is
package abc.xyz
public class pk
then in your bean class import
import abc.xyz.pk;
--Ashwani

Similar Messages

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 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 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.

Compiling error - cannot resolve symbol

Hi,
I am working on writing out this basic code for a project. When I compile, I get an error "Cannot resolve symbol" for the gpa variable. Please help!
My intention is to use the hours and points from the crHours and nbrPoints methods, and use them to calculate GPA in the grPtAvg method:
public class Student
     public static void main(String[]args)
idNum();
crHours();
nbrpoints();
gpa = grPtAvg(hours, points);
System.out.println("Student's GPA is " + gpa);
public static void idNum()
int id = 2520;
System.out.println("Student's ID is " + id);
public static float crHours()
float hours = 5;
System.out.println("Student's credit hours are " + hours);
return hours;
public static float nbrpoints()
float points = 22;
System.out.println("Student's earned points are " + points);
return points;
public static float grPtAvg(float hours, float points)
float gpa;
gpa = points / hours;
System.out.println("Student's computed GPA is " + gpa);
return gpa;

That's because you're doing the same thing (in a somewhat different way) with those.
The variables: hours and points have already been returned to main methd, right?Yes, but then the main method ignores them.
So, they should be available at this point in the code, is that right?Available in the sense that you can read them, but not in the sense that there are hours and points variables within scope in the main method.
You want to do this:
public static void main(String[] args) {
   idNum();
   float hours = crHours();
   float points = nbrpoints();
   //create a new float
   float myComputetdGpa = grPtAvg(hours, points);
   System.out.println("Student's GPA is " + myComputedGpa);
}

Compiler error cannot resolve symbol

Hi people,
i'm having this compile time error that, when i create a class and calling that class in another class gives the error cannot resolve symbol classname and it also happened when i created a bean and referencing the bean class in another bean when i'm using Jsp. thanks in advance.

It would be helpful if you post the exact error message. If you use a system Classpath, then it must contain the root directory for the package directory(s).
For example, if the source code for a file starts with
package my.package;
and you have a directory structure c:\myjava\classes\my\package then the Classpath must contain c:\myjava\classes.

I am getting an error cannot resolve symbol variable?

I am trying to run a PdfFormGenerator.java file and am using the iText API, hence have included
the iText.jar file. When I compile the code I keep getting the following two errors:
cannot resolve symbol variable CLASS_LOCATION
cannot resolve symbol variable FORM_LOCATION
can anyone guide me what I may have done wrong.
Thanks,
Zub

Hi! To be more specific its these to line of the code is were I am going the errors:
private String classLocation = Constants.CLASS_LOCATION;
private String formLocation = Constants.FORM_LOCATION;Thanks

When i try to use max() & pow() in jdbc i get error "cannot resolve symbol"

hi,
when i tried to use pow() & max() in my jdbc programme i got compilation error "cannot resolve symbol".
even i have imorted java.math
this is the sample.
pr1= (fy/(L*B*pow(10.0,-6.0))+((6*mx)/(L*B*B*pow(10.0,-6.0)))+((6*mz)/(B*L*L*pow(10.0,-6.0))));
all of above are double.
and with max();
pr=max(pr1,pr2);
all of above are double.
please help.
thanks in advance.
satish

hi
Hartmut
thanks hartmut;
i am new in java so i have some problems, but thanks for helping me.
please help me again.
as i have already posted another probleme which i have with selecting 1000 rows 1 by 1 from a table & manipulate 1 by 1 on that and then store all manipulated row to another table.
when i tried to do so i am able to select only 600 rows and manipulate them & store them.
i did not get any exception or any error.
can this possible that microsoft access driver has not that much capacity to provide 1000 rows or it is problem with jdbc.
please help.
satish
thanks again.

Need help - method call error cannot resolve symbol

My code compiles fine but I continue to receive a method call error "cannot resolve symbol - variable superman" - can't figure out why. Here is my code:
public static String caesar(String message, int shift)
{   [b]String result = "";
for(int i = 0; i < message.length(); ++i)
{   [b]char newChar = message.charAt(i + shift);
result += newChar;
return result.toUpperCase();
I entered "superman" for message and "3" for the shift. Can someone please help? Thanks!

Your post worked great - especially since it made me realize I was going about it all wrong! I was attempting to convert "superman" to "vxshupdq" - basically a cipher shift starting at index 0 and shifting it 3 character values which would result in s changing to v. I restructured my code:
public static String caesar(String message, int shift)
{   [b]String result = "";
for(int i = 0; i < message.length(); ++i)
{   [b]char newChar = message.charAt(i);
result += (newChar + shift) % message.length();
return result.toUpperCase();
But it's displaying the result as a "60305041". How can I get it to display the actual characters?

Class error - cannot resolve symbol "MyDocumentListener"

Hello,
this is a groaner I'm sure, but I don't see the problem.
Newbie-itis probably ...
I'm not concerned with what the class does, but it would be nice for the silly thing to compile!
What the heck am I missing for "MyDocumentListener" ?
C:\divelog>javac -classpath C:\ CenterPanel.java
CenterPanel.java:53: cannot resolve symbol
symbol : class MyDocumentListener
location: class divelog.CenterPanel
MyDocumentListener myDocumentListener = new MyDocumentListener(); // define the listener class
^
CenterPanel.java:53: cannot resolve symbol
symbol : class MyDocumentListener
location: class divelog.CenterPanel
MyDocumentListener myDocumentListener = new MyDocumentListener(); // define the listener class
^
2 errors
package divelog;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.lang.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.filechooser.*;
import javax.swing.text.*;
public class CenterPanel extends JPanel implements ActionListener
{ // Opens class
static private final String newline = "\n";
private JTextArea comments;
private JScrollPane scrollpane;
private JButton saveButton, openButton;
private JLabel whiteshark;
private Box box;
private BufferedReader br ;
private String str;
private JTextArea instruct;
private File defaultDirectory = new File("C://divelog");
private File fileDirectory = null;
private File currentFile= null;
public CenterPanel()
{ // open constructor CenterPanel
setBackground(Color.white);
comments = new JTextArea("Enter comments, such as " +
"location, water conditions, sea life you observed," +
" and problems you may have encountered.", 15, 10);
comments.setLineWrap(true);
comments.setWrapStyleWord(true);
comments.setEditable(true);
comments.setFont(new Font("Times-Roman", Font.PLAIN, 14));
// add a document listener for changes to the text,
// query before opening a new file to decide if we need to save changes.
MyDocumentListener myDocumentListener = new MyDocumentListener(); // define the listener class
comments.getDocument().addDocumentListener(myDocumentListener); // create the reference for the class
// ------ Document listener class -----------
class MyDocumentListener implements DocumentListener {
public void insertUpdate(DocumentEvent e) {
Calculate(e);
public void removeUpdate(DocumentEvent e) {
Calculate(e);
public void changedUpdate(DocumentEvent e) {
private void Calculate(DocumentEvent e) {
// do something here
scrollpane = new JScrollPane(comments);
scrollpane.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_ALWAYS);
saveButton = new JButton("Save Comments", new ImageIcon("images/Save16.gif"));
saveButton.addActionListener( this );
saveButton.setToolTipText("Click this button to save the current file.");
openButton = new JButton("Open File...", new ImageIcon("images/Open16.gif"));
openButton.addActionListener( this );
openButton.setToolTipText("Click this button to open a file.");
whiteshark = new JLabel("", new ImageIcon("images/gwhite.gif"), JLabel.CENTER);
Box boxH;
boxH = Box.createHorizontalBox();
boxH.add(openButton);
boxH.add(Box.createHorizontalStrut(15));
boxH.add(saveButton);
box = Box.createVerticalBox();
box.add(scrollpane);
box.add(Box.createVerticalStrut(10));
box.add(boxH);
box.add(Box.createVerticalStrut(15));
box.add(whiteshark);
add(box);
} // closes constructor CenterPanel
public void actionPerformed( ActionEvent evt )
{ // open method actionPerformed
JFileChooser jfc = new JFileChooser();
// these do not work !!
// -- set the file types to view --
// ExtensionFileFilter filter = new ExtensionFileFilter();
// FileFilter filter = new FileFilter();
//filter.addExtension("java");
//filter.addExtension("txt");
//filter.setDescription("Text & Java Files");
//jfc.setFileFilter(filter);
     //Add a custom file filter and disable the default "Accept All" file filter.
jfc.addChoosableFileFilter(new JTFilter());
jfc.setAcceptAllFileFilterUsed(false);
// -- open the default directory --
// public void setCurrentDirectory(File dir)
// jfc.setCurrentDirectory(new File("C://divelog"));
jfc.setCurrentDirectory(defaultDirectory);
jfc.setSize(400, 300);
jfc.setFileSelectionMode(JFileChooser.FILES_AND_DIRECTORIES);
Container parent = saveButton.getParent();
//========================= Test Button Actions ================================
//========================= Open Button ================================
if (evt.getSource() == openButton)
int choice = jfc.showOpenDialog(CenterPanel.this);
File file = jfc.getSelectedFile();
/* a: */
if (file != null && choice == JFileChooser.APPROVE_OPTION)
String filename = jfc.getSelectedFile().getAbsolutePath();
// -- compare the currentFile to the file chosen, alert of loosing any changes to currentFile --
// If (currentFile != filename)
// -- get the current directory name -------
// public File getCurrentDirectory( );
File f=new File(System.getProperty("user.dir"));
fileDirectory = jfc.getCurrentDirectory();
// -- remember the last directory used --
if (defaultDirectory != fileDirectory)
{defaultDirectory = fileDirectory;}
try
{ //opens try
comments.getLineCount( );
// -- clear the old data before importing the new file --
comments.selectAll();
comments.replaceSelection("");
// -- get the new data ---
br = new BufferedReader (new FileReader(file));
while ((str = br.readLine()) != null)
{//opens while
comments.append(str);
} //closes while
} // close try
catch (IOException ioe)
{ // open catch
comments.append(newline +"Open command not successful:" + ioe + newline);
} // close catch
// ---- display the values of the directory variables -----------------------
comments.append(
newline + "The f directory variable contains: " + f +
newline + "The fileDirectory variable contains: " + fileDirectory +
newline + "The defaultDirectory variable contains: " + defaultDirectory );
else
comments.append("Open command cancelled by user." + newline);
} //close if statement /* a: */
//========================= Save Button ================================
} else if (evt.getSource() == saveButton)
int choice = jfc.showSaveDialog(CenterPanel.this);
if (choice == JFileChooser.APPROVE_OPTION)
File fileName = jfc.getSelectedFile();
// -- get the current directory name -------
// public File getCurrentDirectory( );
File f=new File(System.getProperty("user.dir"));
fileDirectory = jfc.getCurrentDirectory();
// -- remember the last directory used --
if (defaultDirectory != fileDirectory)
{defaultDirectory = fileDirectory;}
//check for existing files. Warn users & ask if they want to overwrite
for(int i = 0; i < fileName.length(); i ++) {
File tmp = null;
tmp = (fileName);
if (tmp.exists()) // display pop-up alert
//public static int showConfirmDialog( Component parentComponent,
// Object message,
// String title,
// int optionType,
// int messageType,
// Icon icon);
int confirm = JOptionPane.showConfirmDialog(null,
fileName + " already exists on " + fileDirectory
+ "\n \nContinue?", // msg
"Warning! Overwrite File!", // title
JOptionPane.OK_CANCEL_OPTION, // buttons displayed
                    // JOptionPane.ERROR_MESSAGE
                    // JOptionPane.INFORMATION_MESSAGE
                    // JOptionPane.PLAIN_MESSAGE
                    // JOptionPane.QUESTION_MESSAGE
JOptionPane.WARNING_MESSAGE,
null);
if (confirm != JOptionPane.YES_OPTION)
{ //user cancels the file overwrite.
try {
jfc.cancelSelection();
break;
catch(Exception e) {}
// ----- Save the file if everything is OK ----------------------------
try
{ // opens try
BufferedWriter bw = new BufferedWriter(new FileWriter(fileName));
bw.write(comments.getText());
bw.flush();
bw.close();
comments.append( newline + newline + "Saving: " + fileName.getName() + "." + newline);
break;
} // closes try
catch (IOException ioe)
{ // open catch
comments.append(newline +"Save command unsuccessful:" + ioe + newline);
} // close catch
} // if exists
} //close for loop
else
comments.append("Save command cancelled by user." + newline);
} // end-if save button
} // close method actionPerformed
} //close constructor CenterPanel
} // Closes class CenterPanel

There is no way to be able to see MyDocumentListener class in the way you wrote. The reason is because MyDocumentListener class inside the constructor itself. MyDocumentListener class is an inner class, not suppose to be inside a constructor or a method. What you need to do is simple thing, just move it from inside the constructor and place it between two methods.
that's all folks
Qusay

Cannot resolve symbol : class odbc ERROR

Hi Helper
I am trying to compile a the following and I am getting the error
C:\jdk\websiter>javac MainServlet.java
MainServlet.java:86: cannot resolve symbol
symbol : class odbc
location: package jdbc
Class.forName(sun.jdbc.odbc.JdbcOdbcDriver);
import javax.servlet.*;
import javax.servlet.http.*;
import java.sql.*;
import java.io.*;
import java.util.*;
* This is the servlet to send the user the names of all the sites present in the database
public class MainServlet extends HttpServlet implements ServletConstants
Connection m_con;
PreparedStatement m_pstmt;
ResultSet m_res;
Vector m_vecsiteName;
public void Init(ServletConfig config) throws ServletException {
     super.init(config);
}// end of init()
public void service(HttpServletRequest req, HttpServletResponse resp)
throws ServletException, IOException {
          m_vecsiteName = new Vector();
     try {
     Class.forName(sun.jdbc.odbc.JdbcOdbcDriver);
m_con = DriverManager.getConnection("jdbc:odbc:sitewd", "", "");
How can i fix it? thanks
VT

Replace the Statement
Class.forName(sun.jdbc.odbc.JdbcOdbcDriver);
as
Class.forName("sun.jdbc.odbc.JdbcOdbcDriver");

Error: Cannot Resolve symbol

Hi i have written this program but it is not compling properly. i do not know what to do to sort it. here is the code:
import java.sql.*;
import java.io.DataInputStream;
import javax.swing.*;
import java.awt.event.*;
import java.awt.*;
public class Phase1 extends JFrame implements ActionListener, MouseListener
     //Create Buttons and Text areas etc for the GUI itself
     JButton add, current, delete, order, all, exit;
     JTextField textStockCode, textStockDesc, textCurrentLevel, textReorderLevel, textPrice;
     JTextArea textarea;
     JScrollPane pane1;
     JLabel labelStockCode, labelStockDesc, labelCurrentLevel, labelReorderLevel, labelPrice, labelTextArea;
     String stockCode, stockDesc, currentLevel, reorderLevel, price;
     JLabel welcome;
     //Setup database connections and statements for later use
     Connection db_connection;
     Statement db_statement;
     public Phase1()
          //Display a welcome message before loading system onto the screen
          JOptionPane.showMessageDialog(null, "Welcome to the Stock Control System");
          //set up the GUI environment to use a grid layout
          Container content=this.getContentPane();
          content.setLayout(new GridLayout(3,6));
          //Inititlise buttons
          add=new JButton("Add");
          add.addActionListener(this);
          current=new JButton("Show Current Level");
          current.addActionListener(this);
          delete=new JButton("Delete");
          delete.addActionListener(this);
          order=new JButton("Place Order");
          order.addActionListener(this);
          all = new JButton("Show All Entries");
          all.addActionListener(this);
          exit = new JButton("Exit");
          exit.addActionListener(this);
          //Add Buttons to the layout
          content.add(add);
          content.add(current);
          content.add(delete);
          content.add(order);
          content.add(all);
          content.add(exit);
          //Initialise text fields for inputting data to the database and
          //Add mouse listeners to clear the boxs on a click event
          textStockCode = new JTextField("");
          textStockCode.addMouseListener(this);
          textStockDesc = new JTextField("");
          textStockDesc.addMouseListener(this);
          textCurrentLevel = new JTextField("");
          textCurrentLevel.addMouseListener(this);
          textReorderLevel = new JTextField("");
          textReorderLevel.addMouseListener(this);
          textPrice = new JTextField("");
          textPrice.addMouseListener(this);
          //Initialise the labels to label the Text Fields
          labelStockCode = new JLabel("Stock Code");
          labelStockDesc = new JLabel("Stock Description");
          labelCurrentLevel = new JLabel("Current Level");
          labelReorderLevel = new JLabel("Re-Order Level");
          labelPrice = new JLabel("Price");
          labelTextArea = new JLabel("All Objects");
          //Add Text fields and labels to the GUI
          content.add(labelStockCode);
          content.add(textStockCode);
          content.add(labelStockDesc);
          content.add(textStockDesc);
          content.add(labelCurrentLevel);
          content.add(textCurrentLevel);
          content.add(labelReorderLevel);
          content.add(textReorderLevel);
          content.add(labelPrice);
          content.add(textPrice);
          content.add(labelTextArea);
          //Create a text area with scroll bar for showing Entries in the text area
          textarea=new JTextArea();
          textarea.setRows(6);
          pane1=new JScrollPane(textarea);
          content.add(pane1);
          //Try to connect to the database through ODBC
          try
               Class.forName("sun.jdbc.odbc.JdbcOdbcDriver").newInstance();
               //Create a URL that identifies database
               String url = "jdbc:odbc:" + "stock";
               //Now attempt to create a database connection
               //First parameter data source, second parameter user name, third paramater
               //password, the last two paramaters may be entered as "" if no username or
               //pasword is used
               db_connection = DriverManager.getConnection(url, "demo","");
               //Create a statement to send SQL
               db_statement = db_connection.createStatement();
          catch (Exception ce){} //driver not found
     //action performed method for button click events
     public void actionPerformed(ActionEvent ev)
          if(ev.getSource()==add)               //If add button clicked
               try
                    add();                         //Run add() method
               catch(Exception e){}
          if(ev.getSource()==current)
          {     //If Show Current Level Button Clicked
               try
                    current();                    //Run current() method
               catch(Exception e){}
          if(ev.getSource()==delete)
          {          //If Show Delete Button Clicked
               try
                    delete();                    //Run delete() method
               catch(Exception e){}
          if(ev.getSource()==order)          //If Show Order Button Clicked
               try
                    order();                    //Run order() method
               catch(Exception e){}
          if(ev.getSource()==all)          //If Show Show All Button Clicked
               try
                    all();                         //Run all() method
               catch(Exception e){}
          if(ev.getSource()==exit)          //If Show Exit Button Clicked
               try{
                    exit();                         //Run exit() method
               catch(Exception e){}
     public void add() throws Exception           //add a new stock item
          stockCode = textStockCode.getText();
          stockDesc = textStockDesc.getText();
          currentLevel = textCurrentLevel.getText();
          reorderLevel = textReorderLevel.getText();
          price = textPrice.getText();
          if(stockCode.equals(""))
               JOptionPane.showMessageDialog(null,"Ensure Stock Code is filled out");
          if(stockDesc.equals(""))
                         JOptionPane.showMessageDialog(null,"Ensure Description is filled out");
          if(price.equals(""))
               JOptionPane.showMessageDialog(null,"Ensure price is filled out");
          if(currentLevel.equals(""))
               JOptionPane.showMessageDialog(null,"Ensure Current Level is filled out");
          if(reorderLevel.equals(""))
               JOptionPane.showMessageDialog(null,"Ensure Re-Order Level is filled out");
          else
               //Add item to database with variables set from text fields
               db_statement.executeUpdate("INSERT INTO stock VALUES
('"+stockCode+"','"+stockDesc+"','"+currentLevel+"','"+reorderLevel+"','"+price+"')");
     public void current() throws Exception      //check a current stock level
          if(textStockCode.getText().equals(""))//if no stockcode has been entered
               JOptionPane.showMessageDialog(null,"Enter a Stock Code.");
          else
               ResultSet resultcurrent = db_statement.executeQuery("SELECT * FROM stock WHERE StockCode = '"+textStockCode.getText()+"'");
               textarea.setText("");
               if(resultcurrent.next())
                    do
                         textarea.setText("Stock Code: "+resultcurrent.getString("StockCode")+"\nDescription:
"+resultcurrent.getString("StockDescription")+"\nCurrent Level: "+resultcurrent.getInt("CurrentLevel")+"\nRe-Order Level:
"+resultcurrent.getInt("ReorderLevel")+"\nPrice: "+resultcurrent.getFloat("Price"));
                    while(resultcurrent.next());
               else
                    //Display Current Stock Item (selected from StockCode Text field in the scrollable text area
                    JOptionPane.showMessageDialog(null,"Not a valid Stock Code");
     public void delete() throws Exception          //delete a current stock item
          if(textStockCode.getText().equals(""))          //Check there is a stock code entered
               JOptionPane.showMessageDialog(null,"Enter a Stock Code.");
          else
               //Delete Item from database where Stock Code is what is in Stock Code Text Field
               db_statement.executeUpdate("DELETE * FROM stock WHERE StockCode='"+textStockCode.getText()+"'");
     public void order() throws Exception           //check price for an order
          if(textStockCode.getText().equals(""))          //Check there is a stock code entered
               JOptionPane.showMessageDialog(null,"Enter a Stock Code.");
          else
               //Set some variables to aid ordering
               float price = 0;
               int currentlevel = 0;
               int newlevel = 0;
               int reorder = 0;
               String StockCode = textStockCode.getText();
               //Post a message asking how many to order
               String str_quantity = JOptionPane.showInputDialog(null,"Enter Quantity: ","Adder",JOptionPane.PLAIN_MESSAGE);
               int quantity = Integer.parseInt(str_quantity);
               //Get details from database for current item
               ResultSet resultorder = db_statement.executeQuery("SELECT * FROM stock WHERE StockCode='"+StockCode+"'");
               //Set variables from database to aid ordering
               while (resultorder.next())
                    price = resultorder.getFloat("Price");
                    currentlevel = (resultorder.getInt("CurrentLevel"));
                    reorder = (resultorder.getInt("ReorderLevel"));
               //Set the new level to update the database
               newlevel = currentlevel - quantity;
               //calculate the total price of the order
               float total = price * quantity;
               //If the stock quantity is 0
               if(quantity == 0)
                    //Display a message saying there are none left in stock
                    JOptionPane.showMessageDialog(null,"No Stock left for this item");
               //Otherwise check that the quantity ordered is more than what is lewft in stock
               else if(quantity > currentlevel)
                    //If ordered too many display a message saying so
                    JOptionPane.showMessageDialog(null,"Not enough in stock, order less");
               else
                    //Otherwise Display the total in a message box
                    JOptionPane.showMessageDialog(null,"Total is: "+total);
                    //then update the database with new values
                    db_statement.executeUpdate("UPDATE Stock SET CurrentLevel="+newlevel+" WHERE StockCode='"+StockCode+"'");
                    //Check if the new level is 0
                    if(newlevel == 0)
                         //If new level IS 0, send a message to screen saying so
                         JOptionPane.showMessageDialog(null,"There is now no Stock left.");
                    else
                         //otherwise if the newlevel of stock is the same as the reorder level
                         if(newlevel == reorder)
                              // display a message to say so
                              JOptionPane.showMessageDialog(null,"You are now at the re-order level, Get some more of this item in
stock.");
                         //Otherwise if the new level is lower than the reorder level,
                         if(newlevel < reorder)
                              //Display a message saying new level is below reorder level so get some more stock
                              JOptionPane.showMessageDialog(null,"You are now below the reorder level. Get some more of this item in
stock.");
     public void all() throws Exception                //show all stock items and details
          //Get everthing from the database
          ResultSet resultall = db_statement.executeQuery("SELECT * FROM Stock");
          textarea.setText("");
          while (resultall.next())
               //Display all items of stock in the Text Area one after the other
               textarea.setText(textarea.getText()+"Stock Code: "+resultall.getString("StockCode")+"\nDescription:
"+resultall.getString("StockDescription")+"\nCurrent Level: "+resultall.getInt("CurrentLevel")+"\nRe-Order Level:
"+resultall.getInt("ReorderLevel")+"\nPrice: "+resultall.getFloat("Price")+"\n\n");
     public void exit() throws Exception           //exit
          //Cause the system to close the window, exiting.
          db_connection.commit();
          db_connection.close();
          System.exit(0);
     public static void main(String args[])
          //Initialise a frame
          JDBCFrame win=new JDBCFrame();
          //Set the size to 800 pixels wide and 350 pixels high
          win.setSize(900,350);
          //Set the window as visible
          win.setVisible(true);
          win.addWindowListener(new WindowAdapter()
               public void windowClosing(WindowEvent e)
                    System.exit(0);
     //Mouse Listener Commands
     public void mousePressed(MouseEvent evt)
          if (evt.getSource()==textStockCode)
               //Clear the Stock Code text field on clickin on it
               textStockCode.setText("");
          else if (evt.getSource()==textStockDesc)
               //Clear the Stock Description text field on clickin on it
               textStockDesc.setText("");
          else if (evt.getSource()==textCurrentLevel)
               textCurrentLevel.setText("");
               //Clear the Current Level text field on clickin on it
          else if (evt.getSource()==textReorderLevel)
               textReorderLevel.setText("");
               //Clear the Re-Order Level text field on clickin on it
          else if (evt.getSource()==textPrice)
               textPrice.setText("");
               //Clear the Price text field on clickin on it
     public void mouseReleased(MouseEvent evt){}
     public void mouseClicked(MouseEvent evt){}
     public void mouseEntered(MouseEvent evt){}
     public void mouseExited(MouseEvent evt){}
}And this is the error that i get when compiling:
Phase1.java:355: cannot resolve symbol
symbol : class JDBCFrame
location: class Phase1
                JDBCFrame win=new JDBCFrame();
                ^
Phase1.java:355: cannot resolve symbol
symbol : class JDBCFrame
location: class Phase1
                JDBCFrame win=new JDBCFrame();Thanks for any help you can give me

The error is very clear here
Phase1.java:355: cannot resolve symbolsymbol : class JDBCFramelocation: class Phase1 JDBCFrame win=new JDBCFrame();
Where is this class JDBCFrame()?
Import that package or class

Cannot resolve symbol: class OracleDriver

Attempting to compile a servlet on Apache Server using same jdeveloper jdbc libraries:
classes12.jar & nls_charset12.jar
Error message:
$compilejava2.sh ProdJobs
ProdJobs.java:361: cannot resolve symbol
symbol : class OracleDriver
location: package driver
DriverManager.registerDriver(new oracle.jdbc.driver.OracleDriver());
Am I missing something else?
Jeffrey

Enter this code into your program and then put the Oracle jar file that contains the driver in your run-time classpath.
try {
Class.forName("oracle.jdbc.driver.OracleDriver");
catch(ClassNotFoundException cnfe) {
// driver not found
}The effect of this is that the classloader will load the Oracle driver for you then call it's static initiailizer that does a bunch of magic that results in the Java runtime knowing that there's a JDBC driver out there.
It is a little weird - but that's the way it works.

Cannot resolve symbol: class EJBObject

Using javac I get this compile error on this file Calculator.java
Calculator.java:1: cannot resolve symbol
symbol : class EJBObject
location: package ejb
import javax.ejb.EJBObject;
^
Calculator.java:5: cannot resolve symbol
symbol : class EJBObject
location: interface Calculator
public interface Calculator extends EJBObject {
Source code for Calculator.java
import javax.ejb.EJBObject;
import java.rmi.*;
public interface Calculator extends EJBObject {
public long add (int x, int y) throws RemoteException;
public long subtract (int x, int y) throws RemoteException;

This code is from a book, so I will assume its a classpath problem. My
classpath looks like:
"C\QTJava.zip".;%J2EE_HOME%\lib\j2ee.jar;%J2EE_HOME%\lib\locale
Also the following enviorment varibales have been set to:
J2EE_HOME
C:\Development\Java\j2sdkee1.3.1
JAVA_HOME
C:\Development\Java\jdk1.3.1
Path
%SystemRoot%\system32;%SystemRoot%;%SystemRoot%\System32\Wbem;C:\Program Files\Common Files\Adaptec Shared\System;%JAVA_HOME%\bin;%J2EE_HOME%\bin
I can run j2EE, like "j2EE -verbose" (no problems)
also run cloudscape, like "cloudscape -start" (no problems)
also can run deploytool, like "deploytool" (no problems, & deploy sample ear files from cd book)
Your help is appreicated.

Javac compiler Error - cannot resolve symbol - symbol StringBuilder?

Hi ,
I am using hp - ux system with java version "1.4.2.06". when i try to compile a program called CharSequenceDemo.java which is found in the java tutorials at this link
[CharSequenceDemo.java|http://java.sun.com/docs/books/tutorial/java/IandI/examples/CharSequenceDemo.java]
i get the following error:
$/opt/java1.4/bin/javac CharSequenceDemo.java
CharSequenceDemo.java:38: cannot resolve symbol
symbol : class StringBuilder
location: class CharSequenceDemo
StringBuilder sub =
^
CharSequenceDemo.java:39: cannot resolve symbol
symbol : class StringBuilder
location: class CharSequenceDemo
new StringBuilder(s.subSequence(fromEnd(end), fromEnd(start)));
^
CharSequenceDemo.java:44: cannot resolve symbol
symbol : class StringBuilder
location: class CharSequenceDemo
StringBuilder s = new StringBuilder(this.s);
^
CharSequenceDemo.java:44: cannot resolve symbol
symbol : class StringBuilder
location: class CharSequenceDemo
StringBuilder s = new StringBuilder(this.s);
^
4 errors
Please help on how to compile this program.

I've been struggling with the same issue. The difference is that my system says I'm using version 1.6.0_05. I've tried running jucheck.exe. It tells me I've got the latest version installed.
Here is the code:
import java.lang.StringBuilder;
import java.util.Formatter;
   public class UsingFormatter {
     public static void main(String[] args) {
       if (args.length != 1) {
         System.err.println("usage: " +
           "java format/UsingFormatter <format string>");
         System.exit(0);
       String format = args[0];
       StringBuilder stringBuilder = new StringBuilder();
       Formatter formatter = new Formatter(stringBuilder);
       formatter.format("Pi is approximately " + format +
         ", and e is about " + format, Math.PI, Math.E);
       System.out.println(stringBuilder);
   }When I type javac UsingFormatter.java, I get:
UsingFormatter.java:1: cannot resolve symbol
symbol : class StringBuilder
location: package lang
import java.lang.StringBuilder;
^
UsingFormatter.java:2: cannot resolve symbol
symbol : class Formatter
location: package util
import java.util.Formatter;
^
UsingFormatter.java:14: cannot resolve symbol
symbol : class StringBuilder
location: class UsingFormatter
StringBuilder stringBuilder = new StringBuilder();
^
UsingFormatter.java:14: cannot resolve symbol
symbol : class StringBuilder
location: class UsingFormatter
StringBuilder stringBuilder = new StringBuilder();
^
UsingFormatter.java:15: cannot resolve symbol
symbol : class Formatter
location: class UsingFormatter
Formatter formatter = new Formatter(stringBuilder);
^
UsingFormatter.java:15: cannot resolve symbol
symbol : class Formatter
location: class UsingFormatter
Formatter formatter = new Formatter(stringBuilder);
^
6 errors
The compiler refuses to recognize the symbols StringBuilder and Formatter.
I have spent hours googling for an answer and trying every suggestion. Nothing works, not even the one about dropping the computer from the rooftop.
Ultimately, what I'm trying to accomplish (in a different program) is to use a text file as a form letter template and replace the %s placeholders with stings from my form object.
Any advice?
Edited by: javastudent_99 on Apr 3, 2008 1:48 PM

Error:cannot resolve Symbol class"name"

Similar Messages

Maybe you are looking for