@Override public boolean equals(Object other){
  if (!(other instanceof Sha256Hash))   return false;
  return Arrays.equals(bytes,((Sha256Hash)other).bytes);
}

@ Override public boolean equals ( Object other ) { if ( ! ( other instanceof Sha256Hash ) ) return false ; return Arrays . equals ( bytes , ( ( Sha256Hash ) other ) . bytes ) ; }
returns true if the hashes are equal .
