function « hash « Java Collection Q&A

1. Hashing function used in Java Language    stackoverflow.com

I know that Java has beautiful inbuilt support for the HashMaps or HashTables. Does anybody have knowledge that what kind of hashing functions or techniques are employed by Java language? Is ...

2. Rabin Hash Functions - FAST Implementation in Java    stackoverflow.com

I am looking for an implementation of the Rabin Hash Function in Java, Can anyone recommend a fast library?

3. Defining muliple hash functions for the same object    stackoverflow.com

I have several Sets that store the objects of the same class, but I want to specify a different identity function for each of them (i.e. say, in one set A==B ...

4. What is a best practice of writing hash function in java?    stackoverflow.com

I'm wondering what is the best practice for writing #hashCode() method in java. Good description can be found here. Is it that good?

5. Good hash function for list of 2-d positions?    stackoverflow.com

I have a series of objects whose only different internal state is a fixed-length list(or whatever) of 2-d positions (2 integers). That is, they all have the same number of elements, ...

6. Locality Preserving Hash Function    stackoverflow.com

Is there any Java library that provides an implementation (or several) of a Locality Preserving Hash Function for Strings?

7. Java: Hash function for objects    stackoverflow.com

I'm thinking about a hash function for arbitrary Java-objects for exercise means. The naive way would be to call the hashCode()-function for each attribute, add these hashes and then take the ...

8. Does hash function djb2 have java version?    stackoverflow.com

I saw that java can't handle unsigned long... If yes, can any one post the code? Thanks.

9. Hash Function    coderanch.com

I need a hash function to use in a program I'm writing. I know exactly how big the table needs to be (88,799). I need to store strings in the table, with strings as the keys for those elements being stored. Basically I'm storing a list of names and passwords associated with those names. I need to be able to enter ...

10. where to find HMAC-SHA 256 hash function    coderanch.com

11. I need a Hash function?    coderanch.com

I have a class which downloads a resource(image file etc.) in background and writes it onto a persistent storage. While saving the file, I am using the last portion of the URL as the file name. For e.g. if http://some.host.name/some/path/Resource.png is the URL the name of the file would be "Resource.png". The problem is there could be more than one URL ...

12. Hash functions    coderanch.com

13. Hash function question    forums.oracle.com

14. Question on hash functions--a little math-y...please help!!    forums.oracle.com

This comes from a wrapper class that holds a string (REP) as well as an int SKIP that causes the hash function to skip characters in the string (my question won't be dealing with SKIP, ie, assume SKIP is one for the purposes of this question). I'm running this hash function on four-character "words" of the form "xxyy" (where x and ...

15. Hash function that returns the same value to an 'almost similar' objects    forums.oracle.com

Hi all. I'm looking for a hash function, that will return the same value to two strings, that are almost similar to each other. what do I mean? for example, if I have a source code (as a string) of a that function: 'void f() {a += 1;}' and that function: 'void f() {b += 1;}' the Hash value of that ...

16. hash functions    forums.oracle.com

Hi everybody My request is not Java-specific, but my implementation is using Java, and I know no better forums than here! =) I need some parametrized hash functions for my application. I need functions that work over variable number of bits (boolean[], for example), and produce an output with configurable size. For example, I could supply a boolean[89] and request an ...