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What is hashCode?

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priya01 Offline referral

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#1
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What is hashCode?
Victor Dub Offline referral

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#2
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Hash code is used to encode sensitive information like passwords before they stored in SQL table. So if you hack the database you won't be able to decode the line unless you have a primer!

In many cases webmasters use hash + salt to really make is almost impossible to break without knowing the primer code!
shivaganguly Offline referral

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#3
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A hashcode is a number generated from any object. This is what allows objects to be stored/retrieved quickly in a Hashtable.
arush Offline referral

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#4
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HashCode is use for generating numbers (there is no best hash function) that returns some integer values.
This integer value is used in array.
manvisen Offline referral

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#5
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A hash code is a numeric value that is used to identify an object during equality testing.
chandlerbong Offline referral

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#6
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A hashcode is a number generated from any object. This is what allows objects to be stored/retrieved quickly in a Hashtable.
Imagine the following simple example:
On the table in front of you you have nine boxes, each marked with a number 1 to 9. You also have a pile of wildly different objects to store in these boxes, but once they are in there you need to be able to find them as quickly as possible.
What you need is a way of instantly deciding which box you have put each object in. It works like an index; you decide to find the cabbage so you look up which box the cabbage is in, then go straight to that box to get it.
Now imagine that you don't want to bother with the index, you want to be able to find out immediately from the object which box it lives in.
In the example, let's use a really simple way of doing this - the number of letters in the name of the object. So the cabbage goes in box 7, the pea goes in box 3, the rocket in box 6, the banjo in box 5 and so on. What about the rhinoceros, though? It has 10 characters, so we'll change our algorithm a little and "wrap round" so that 10-letter objects go in box 1, 11 letters in box 2 and so on. That should cover any object.
Sometimes a box will have more than one object in it, but if you are looking for a rocket, it's still much quicker to compare a peanut and a rocket, than to check a whole pile of cabbages, peas , banjos and rhinoceroses.
That's a hash code. A way of getting a number from an object so it can be stored in a Hashtable. In Java a hash code can be any integer, and each object type is responsible for generating its own. Lookup the "hashCode" method of Object.
nishagarg Offline referral

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#7
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A hashtag is a type of metadata tag used on social network and microblogging services which makes it easier for users to find messages with a specific theme or content. Users create and use hashtags by placing the number sign or pound sign (colloquially known as the hash character # in reference to its resemblance to several slices or chops with a sharp implement) in front of a word or unspaced phrase, either in the main text of a message or at the end. Searching for that hashtag will yield each message that has been tagged with it. A hashtag archive is consequently collected into a single stream under the same hashtag.[1] For example, on the photo-sharing service Instagram, the hashtag #bluesky allows users to find all the posts that have been tagged using that hashtag.
seo users Offline referral

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#8
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A hash code is a number generated from any object.
I am a SEO USERS .
anirban09p Offline referral

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#9
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A hash code is a numeric value that is used to identify an object during equality testing. To address the issue of integrity, it is common to make use of hash codes. The goal is for every object to return a distinct hash code, but this often cannot be absolutely guaranteed. That is, the default implementation of the GetHashCode() method does not guarantee unique return values for different objects.
damponting44 Offline referral

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#10
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A hashcode is a number created from any protest. This is the thing that enables articles to be put away/recovered rapidly in a Hashtable. Envision the accompanying straightforward case: On the table before you have nine boxes, each set apart with a number 1 to 9.





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