Ok, I need a hashing function to meet the following requirements. The idea is to be able to link together directories that are part of the same logical structure but stored ...
I am working with a large set (5-20 million) of String keys (average length 10 chars) which I need to store in an in memory data structure that supports the following ...
Here is the weird thing which has already taken me a whole day:
If a write a simple String like "1" to a file and read it immediately, the string fetched equals ...
In testing with String.hashCode() I noticed that it does not have an avalanche effect. I know that there's a java port of Jenkins hash, but I was wondering ...
I want to get a unique numeric representation of a String. I know there are lots of ways of doing this, my question is which do you think is the best? ...
why not use the Math.random() function to generate a random number for yourself. Then convert that into a char... concatenate the char's together to make a String. Remember that Math.random() generates a decimal number between 0 and 1 so you'll need to multiply it by some integer to make it a valid int to be converted to a char.
Hello all i have here small dilemma , im trying to filter some inputstream with checking every line im reading if it contains string out of collection of strings but i can't find any way to do that without looping the collection , i will like to avoid the looping . that is for example if i have : line.indexOf(.....here i ...
Yes you can get the hash of a String. In cryptography one uses 'message digest' rather than hash and Java has a class MessageDigest that allows one to feed it the bytes of the String using update() and then get the digest() as a byte array. If you are serious about using cryptography in Java then a good starting point is ...