public BloomFilter(byte[] data,int hashFunctions,int tweak,UpdateMode update){
  filter=Arrays.clone(data);
  this.hashFunctions=Math.min(hashFunctions,MAX_HASH_FUNCS);
  this.tweak=tweak;
  this.update=update;
}

public BloomFilter ( byte [ ] data , int hashFunctions , int tweak , UpdateMode update ) { filter = Arrays . clone ( data ) ; this . hashFunctions = Math . min ( hashFunctions , MAX_HASH_FUNCS ) ; this . tweak = tweak ; this . update = update ; }
create a bloom filter
