How to use Iterator correctly to print out object attributes from Vector ?

Question

Dear Java People,
I have no compilation errors but am not getting output.
I created a CD class and a Vector to hold all the CDs.
I think perhaps I am using the Iterator incorrectly in the
toSting() method. Below is the driver and CD class
Thank you in advance
Norman
import java.util.*;
public class TryCD
   public static void main(String[] args)
     Vector cdVector = new Vector();
     CD cd_1 = new CD("Heavy Rapper", "Joe", true);
     CD cd_2 = new CD("Country Music", "Sam", true);
     CD cd_3 = new CD("Punk Music", "Mary", true);
     cdVector.add(cd_1);
     cdVector.add(cd_2);
     cdVector.add(cd_3);
     Iterator i = cdVector.iterator();
     while(i.hasNext())
       i.next().toString();
public class CD
   private String item;
   private boolean borrowed = false;
   private String borrower = "";
   private int totalNumberOfItems;
   private int totalNumberOfItemsBorrowed;
   public CD(String item,String borrower, boolean borrowed)
     this.item = item;
     this.borrower = borrower;
     this.borrowed = borrowed;
   public String getItem()
     return item;
   public String getBorrower()
     return borrower;
   public boolean getBorrowed()
     return borrowed;
   public String toString()
      return getItem() + getBorrower();
}

Answer 1

Dear InTrueT,
The problem with trying to use
System.out.println()is that it returns void and
toString() requires a String be returned
the error messaage says:
"CD.java": Error #: 354 : incompatible types; found:
void, required: java.lang.String at line 35
your advice is appreciated
NormanYou seem to have misunderstood. toString(), as you say, returns a String. System.out.println(), by a wonderful coincidence of design, accepts a String as a parameter. My suggestion was that you pass the output of one as the input to the other, thus displaying your String on the screen, as I had understood this to be your desire.