Hello, I have a problem with the following code:

public void collectString(String header) {

               //Set xhd = new HashSet(); declared in superclass

xhd.add(header);
Iterator iter = xhd.iterator();

       while(iter.hasNext()) {
               iter.next();
                       System.out.println("String: " + xhd);
}

                                       }// method collectString

What happens is collectString is called by it's superclass which passes
a String. The String should be different each time and then added to the
xhd HashSet. However when I do this I only get the last string passed to
the method, they are not appended to the previous string. Could the
problem be that the superclass is also called from another class which
is also in a loop, thus the new HashSet declaration each time is
confusing it? Adding other strings (as a test) within the method seems
to work ok.

Thanks in advance.