///////    TestItr.java    ///////
import java.util.Enumeration;

class TestItr
{   public static void main(String[] args)
    {   CirbufItr b = new CirbufItr();
        b.put('A'); b.put('B');
        b.put('C'); b.put('D');
        Enumeration it = b.elements();
	Character c;
        while ( it.hasMoreElements() )
        {   c = (Character)it.nextElement();
            System.out.println("Next character = " + c);
        }
    }
}