477                 public int hashCode() {
 478                     return props.hashCode();
 479                 }
 480 
 481                 public boolean isEmpty() {
 482                     return props.isEmpty();
 483                 }
 484 
 485                 public Set<String> keySet() {
 486                     return props.keySet();
 487                 }
 488 
 489                 public String put(String key, String value) {
 490                     String oldValue = props.get(key);
 491                     if (oldValue == null || !oldValue.equals(value)) {
 492                         preferences.setPreference(key, value);
 493                     }
 494                     return oldValue;
 495                 }
 496 
 497                 public void putAll(Map m) {
 498                     throw new UnsupportedOperationException();
 499                 }
 500 
 501                 public String remove(Object key) {
 502                     throw new UnsupportedOperationException();
 503                 }
 504 
 505                 public int size() {
 506                     return props.size();
 507                 }
 508 
 509                 public Collection<String> values() {
 510                     return props.values();
 511                 }
 512             };
 513 
 514             for (int i = 0; i < panes.length; i++) {
 515                 panes[i].save(m);
 516             }
 517         }

 477                 public int hashCode() {
 478                     return props.hashCode();
 479                 }
 480 
 481                 public boolean isEmpty() {
 482                     return props.isEmpty();
 483                 }
 484 
 485                 public Set<String> keySet() {
 486                     return props.keySet();
 487                 }
 488 
 489                 public String put(String key, String value) {
 490                     String oldValue = props.get(key);
 491                     if (oldValue == null || !oldValue.equals(value)) {
 492                         preferences.setPreference(key, value);
 493                     }
 494                     return oldValue;
 495                 }
 496 
 497                 public void putAll(Map<? extends String, ? extends String> m) {
 498                     throw new UnsupportedOperationException();
 499                 }
 500 
 501                 public String remove(Object key) {
 502                     throw new UnsupportedOperationException();
 503                 }
 504 
 505                 public int size() {
 506                     return props.size();
 507                 }
 508 
 509                 public Collection<String> values() {
 510                     return props.values();
 511                 }
 512             };
 513 
 514             for (int i = 0; i < panes.length; i++) {
 515                 panes[i].save(m);
 516             }
 517         }