@SuppressWarnings("rawtypes") public final int compareTo(E o){
  Enum<?> other=(Enum<?>)o;
  Enum<E> self=this;
  if (self.getClass() != other.getClass() && self.getDeclaringClass() != other.getDeclaringClass())   throw new ClassCastException();
  return self.ordinal - other.ordinal;
}

@ SuppressWarnings ( "rawtypes" ) public final int compareTo ( E o ) { Enum < ? > other = ( Enum < ? > ) o ; Enum < E > self = this ; if ( self . getClass ( ) != other . getClass ( ) && self . getDeclaringClass ( ) != other . getDeclaringClass ( ) ) throw new ClassCastException ( ) ; return self . ordinal - other . ordinal ; }
compares this enum with the specified object for order . returns a negative integer , zero , or a positive integer as this object is less than , equal to , or greater than the specified object . enum constants are only comparable to other enum constants of the same enum type . the natural order implemented by this method is the order in which the constants are declared .
