CODEWITHSUNDEEP
javaalgorithmhashhashmap
Michal
Michal

Reputation: 3632

Hashing multiple Strings into one Hash

I hava a array of many strings. And I want to create one hash. First I hashed all strings of that array like here:

for (int i = 0; i < strings.length(); i++)
{
    strings[i] = hash(strings[i]);
}

So now I have hashes at level 1. Like on picture below. Is there any algorithm for do the next steps? I do not want to making merkle tree.

enter image description here

Upvotes: 0

Views: 1992

Answers (2)

Ankit Jindal
Ankit Jindal

Reputation: 121

I feel Arrays.hashCode(Object a[]) can be used.

Please have a look if Arrays.hashCode(Object a[]) helps.

String[] strings = {"Hello 1", "Hello 1", "Hello 1"};
int hasCode = Arrays.hashCode(strings);
System.out.println(hasCode);

Upvotes: 4

Antoniossss
Antoniossss

Reputation: 32535

If I were you, I would join all strings into one, and then hash that long string.

Eg.

        StringJoiner j=new StringJoiner("");//Or any other separator
        Arrays.asList(strings).forEach(j::add);
        String finalHash=hash(j.toString());

Upvotes: 3

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