140     /**
 141      * Returns iterator for items.
 142      */
 143     public Iterator<XAtom> iterator() {
 144         return atoms.iterator();
 145     }
 146 
 147     /**
 148      * Merges without duplicates all the atoms from another list
 149      */
 150     public void addAll(XAtomList atoms) {
 151         Iterator<XAtom> iter = atoms.iterator();
 152         while(iter.hasNext()) {
 153             add(iter.next());
 154         }
 155     }
 156 
 157     public String toString() {
 158         StringBuffer buf = new StringBuffer();
 159         buf.append("[");
 160         Iterator iter = atoms.iterator();
 161         while (iter.hasNext()) {
 162             buf.append(iter.next().toString());
 163             if (iter.hasNext()) {
 164                 buf.append(", ");
 165             }
 166         }
 167         buf.append("]");
 168         return buf.toString();
 169     }
 170 }

 140     /**
 141      * Returns iterator for items.
 142      */
 143     public Iterator<XAtom> iterator() {
 144         return atoms.iterator();
 145     }
 146 
 147     /**
 148      * Merges without duplicates all the atoms from another list
 149      */
 150     public void addAll(XAtomList atoms) {
 151         Iterator<XAtom> iter = atoms.iterator();
 152         while(iter.hasNext()) {
 153             add(iter.next());
 154         }
 155     }
 156 
 157     public String toString() {
 158         StringBuffer buf = new StringBuffer();
 159         buf.append("[");
 160         Iterator<XAtom> iter = atoms.iterator();
 161         while (iter.hasNext()) {
 162             buf.append(iter.next().toString());
 163             if (iter.hasNext()) {
 164                 buf.append(", ");
 165             }
 166         }
 167         buf.append("]");
 168         return buf.toString();
 169     }
 170 }