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Anonymous Classes

• Commonly used in factory methods:
  public static Comparator comparatorByName()
  {
     return new Comparator()
     {
        public int compare(Object o1, Object o2) { . . . }
     };
  }
• Collections.sort(a, Country.comparatorByName());
• Neat arrangement if multiple comparators make sense
  (by name, by area, ...)
  

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