private static boolean hasSameDigits ( int x , int y ) {
  char [ ] xdigits = Integer . toString ( x ) . toCharArray ( ) ;
  char [ ] ydigits = Integer . toString ( y ) . toCharArray ( ) ;
  Arrays . sort ( xdigits ) ;
  Arrays . sort ( ydigits ) ;
  return Arrays . equals ( xdigits , ydigits ) ;
}

private static boolean hasSameDigits ( int x , int y ) { char [ ] xdigits = Integer . toString ( x ) . toCharArray ( ) ; char [ ] ydigits = Integer . toString ( y ) . toCharArray ( ) ; Arrays . sort ( xdigits ) ; Arrays . sort ( ydigits ) ; return Arrays . equals ( xdigits , ydigits ) ; }
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