Cannot find symbl method update Date(int,java.util.Date)

Question

I get following error
cannot find symbl method update Date(int,java.util.Date) on compling class called GuestDataBean at line ( rowSet.updateDate( 4, guest.getDate() ); ).
GustBean.java. I need help on why I get it.
// JavaBean to store data for a guest in the guest book.
package com.deitel.jhtp6.jsp.beans;
import java.util.*;
public class GuestBean
   private String firstName;
   private String lastName;
   private String email;
   private Date date;
   private String message;
   //Constructors
   public GuestBean(){
        public GuestBean(String firstname, String lastname, String email,Date date,String message){
             this.firstName=firstname;
             this.lastName=lastName;
             this.email=email;
             this.date=date;
             this.message=message;
   // set the guest's first name
   public void setFirstName( String name )
      firstName = name; 
   } // end method setFirstName
   // get the guest's first name
   public String getFirstName()
      return firstName; 
   } // end method getFirstName
   // set the guest's last name
   public void setLastName( String name )
      lastName = name; 
   } // end method setLastName
   // get the guest's last name
   public String getLastName()
      return lastName; 
   } // end method getLastName
   // set the guest's email address
   public void setEmail( String address )
      email = address;
   } // end method setEmail
   // get the guest's email address
   public String getEmail()
      return email; 
   } // end method getEmail
   public void setMessage( String mess)
      message = mess;
   } // end method setEmail
   // get the guest's email address
   public String getMessage()
      return message; 
   } // end method getEmail
   public void setDate( Date dat )
      date = dat;
   } // end method setEmail
   // get the guest's email address
   public Date getDate()
      return date; 
   } // end method getEmail
} // end class GuestBean
GuestDataBean.java/**
* @(#)GuestDataBean.java
* @author
* @version 1.00 2008/7/18
// Class GuestDataBean makes a database connection and supports
// inserting and retrieving data from the database.
package com.deitel.jhtp6.jsp.beans;
import java.sql.SQLException;
import javax.sql.rowset.CachedRowSet;
import java.util.ArrayList;
import com.sun.rowset.CachedRowSetImpl; // CachedRowSet implementation
import java.sql.*;
public class GuestDataBean
   private CachedRowSet rowSet;
   // construct TitlesBean object
   public GuestDataBean() throws Exception
      // load the MySQL driver
      Class.forName( "org.gjt.mm.mysql.Driver" );
      // specify properties of CachedRowSet
      rowSet = new CachedRowSetImpl(); 
      rowSet.setUrl( "jdbc:mysql://localhost:3306/virsarmedia" );
      rowSet.setUsername( "root" );
      rowSet.setPassword( "" );
       // obtain list of titles
      rowSet.setCommand(
         "SELECT firstName, lastName, email,date,message FROM guest" );
      rowSet.execute();
   } // end GuestDataBean constructor
   // return an ArrayList of GuestBeans
   public ArrayList< GuestBean > getGuestList() throws SQLException
      ArrayList< GuestBean > guestList = new ArrayList< GuestBean >();
      rowSet.beforeFirst(); // move cursor before the first row
      // get row data
      while ( rowSet.next() )
         GuestBean guest = new GuestBean();
         guest.setFirstName( rowSet.getString( 1 ) );
         guest.setLastName( rowSet.getString( 2 ) );
         guest.setEmail( rowSet.getString( 3 ) );
         guest.setDate( rowSet.getDate( 4 ) );
         guest.setMessage( rowSet.getString( 5 ) );
         guestList.add( guest );
      } // end while
      return guestList;
   } // end method getGuestList
   // insert a guest in guestbook database
   public void addGuest( GuestBean guest ) throws SQLException
      rowSet.moveToInsertRow(); // move cursor to the insert row
      // update the three columns of the insert row
      rowSet.updateString( 1, guest.getFirstName() );
      rowSet.updateString( 2, guest.getLastName() );
      rowSet.updateString( 3, guest.getEmail() );
      rowSet.updateDate( 4, guest.getDate() );
      rowSet.updateString( 5, guest.getMessage() );
      rowSet.insertRow(); // insert row to rowSet
      rowSet.moveToCurrentRow(); // move cursor to the current row
      rowSet.commit(); // propagate changes to database
   } // end method addGuest
} // end class GuestDataBean

Answer 1

This isn't a JSP question, it better belongs in the JavaProgramming, or JDBC forums.
But the problem is because the updateDate method uses a java.sql.Date object and you are giving it a java.util.Date object. You have to convert from java.util.Date to java.sql.Date. See: [the api for java.sql.Date|http://java.sun.com/javase/6/docs/api/java/sql/Date.html] .
Edited by: stevejluke on Jul 21, 2008 5:43 PM