"iterator() not foound in class ! Help !

Question

Dear People,
I have an error message:
"TryCDCatalog.java": Error #: 300 : method iterator() not found in class stan_ipj_10_28_ii.CDCatalog at line 17
Iterator i = myCDCatalog.iterator();
any ideas?
Thanks
Norman
import java.util.*;
public class TryCDCatalog
   public static void main(String[] args)
     CD cd_1 = new CD(1,"Heavy Rapper", true,"John Smith");
     CD cd_2 = new CD(2,"Country Music",true,"Sam Weatherfield");
     CD cd_3 = new CD(3,"Punk Music",true, "Mary Martinez");
     CDCatalog myCDCatalog = new CDCatalog();
     myCDCatalog.addToCatalog(cd_1);
     myCDCatalog.addToCatalog(cd_2);
     myCDCatalog.addToCatalog(cd_3);
     Iterator i = myCDCatalog.iterator();
     while(i.hasNext())
       System.out.println(i.next().toString());
import java.util.*;
public class CDCatalog
   private Vector cdCatalog;
   public CDCatalog()
     cdCatalog = new Vector();
   public void addToCatalog(CD cd)
         cdCatalog.add(cd);
       public int numberOfCDs()
         return cdCatalog.size();
       public void showCD(Object cd)
         System.out.println("The CD is " );
       public String toString()
         return "";
import java.util.*;
public class CD
   private int cdID;
   private String item = "";
   private String borrower = "";
   private boolean borrowed = false;
   private int totalNumberOfItems = 0;
   public CD(int cdID, String item, boolean borrowed,String borrower)
     this.cdID = cdID;
     this.item = item;
     this.borrowed = borrowed;
     this.borrower = borrower;
   public int getCdID()
     return cdID;
   public String getItem()
     return item;
   public boolean getBorrowed()
     return borrowed;
   public String getBorrower()
     return borrower;
   public String toString()
    return (getCdID() + getItem() + getBorrowed() + getBorrower());

Answer 1

Dear Jsalonen,
Here is how my logic goes:
thank you in advance
Norman
My driver class has
//this should go through all the objects in the CDCatalog vector
Iterator i = myCDCatalog.iterator();
while(i.hasNext())
System.out.println(i.next());
My CDCatalog class has a
//confusion here - need to get to the CD class object attributes
public String toString()
System.out.println("NOT SURE WHAT TO PUT HERE");
my CD class has
//this should get me the CD attributes printed
public String toString()
return (getCdID() + getItem() + getBorrowed() + getBorrower());
}