A glance at the source code for string.GetHashCode using Reflector reveals the following (for mscorlib.dll version 4.0):
What\'s a correct and good way to implement __hash__()? I am talking about the function that returns a hashcode that is then used to insert objects into hashtables aka dictionaries.
We find a lot of concrete subclasses under Collection. Whil开发者_开发百科e trying to add an element in a concrete collection, this collection will use a method to determine if it can accept to store
I want to embed a ShareThis/AddThis button on my site but the site\'s navigation relies on Hash tags in the url. Each page is assigned a unique hash value (ie, http://domain.com/index.php#prod开发者_高
when i run this from the repl: (def md (MessageDigest/开发者_Python百科getInstance \"SHA-1\")) (. md update (into-array [(byte 1)(byte 2)(byte 3)]))
I was wondering if someone could explain in detail what (int)(l ^ (l >>> 32)); does in the following hashcode implementation (generated by eclipse, but the same as Effective Java):
I was wondering how Java orders items in the Map (HashMap or Hashtable) when they are added. Are开发者_JAVA技巧 the keys ordered by the hashcode, memory reference or by allocation precedence...?
Let\'s say I have the following class: class ABC { private int myInt = 1; private double myDouble = 2; private String myString = \"123\";
Background: I have a short list of strings. The number of strings is not always the same, but are nearly always of the order of a “handful”
Given this: String s1= new String(\"abc\"); String s2= new String(\"abc\"); String s3 =\"abc\"; System.out.println(s1==s3);
加载中,请稍侯......