How can I do reverse hashing?

Projects Programming
1

Hello,

I don't know if it's the correct term, but I wanted to know if getting the reverse value from a HashMap was possible. What I mean by that is:

I have a HashMap table like this:

HashType<char,int> hashRawArray[HASH_SIZE];
HashMap<char,int> hashMap = HashMap<char,int>( hashRawArray , HASH_SIZE );

hashMap0;
hashMap1;
hashMap2;
hashMap3;

So if I write:

hashMap.getValueOf('A");

I get the corresponding value. What I want to do is to get the letter 'A' from the value B10110000. So in reverse order. Is it possible to do so?

Sorry, I'm quite new to this.

2

Yes, but it generally means iterating through the map, to find the matching entry, then returning its index.

Regards,
Ray L.

3

this might be a starting point - Reverse HashMap keys and values in Java - Stack Overflow

4

I will look into the link, and I also found a getIndexof command, which might be what I was asking about.

Thank you very much for the helps!