java Programming Glossary: bucket
equals and hashcode in Hibernate http://stackoverflow.com/questions/1638723/equals-and-hashcode-in-hibernate data corruption because your entity may be allocated to a bucket not matching its current hashCode . share improve this answer..
Why do I need to override the equals and hashCode methods in Java? http://stackoverflow.com/questions/2265503/why-do-i-need-to-override-the-equals-and-hashcode-methods-in-java first calculates its hashCode and stores it in a given bucket. Then when you call myMap.put second someOtherValue it should.. so when the map hashes second and iterates through the bucket looking if there is an object k such that second.equals k is.. you call myMap.put first someValue first will hash to some bucket and when you call myMap.put second someOtherValue it will hash..
Why use a prime number in hashCode? http://stackoverflow.com/questions/3613102/why-use-a-prime-number-in-hashcode want the number you are multiplying by and the number of buckets you are inserting into to have orthogonal prime factorizations... have orthogonal prime factorizations. Suppose there are 8 buckets to insert into. If the number you are using to multiply by.. are using to multiply by is some multiple of 8 then the bucket inserted into will only be determined by the least significant..
How does a HashMap work in Java? http://stackoverflow.com/questions/6493605/how-does-a-hashmap-work-in-java but it illustrates the basic mechanism It has a number of buckets which it uses to store key value pairs in. Each bucket has.. of buckets which it uses to store key value pairs in. Each bucket has a unique number that's what identifies the bucket. When.. Each bucket has a unique number that's what identifies the bucket. When you put a key value pair into the map the hashmap will..
Math.random() versus Random.nextInt(int) http://stackoverflow.com/questions/738629/math-random-versus-random-nextintint to an int then forces these values into one of six 'buckets' 0 1 2 3 4 5 each bucket corresponding to ranges encompassing.. these values into one of six 'buckets' 0 1 2 3 4 5 each bucket corresponding to ranges encompassing either 1501199875790165.. the die will show itself to be biased towards the larger buckets. You will be waiting a very long time rolling dice for this..
Understanding strange Java hash function http://stackoverflow.com/questions/9335169/understanding-strange-java-hash-function the hash value. Since the hashmap in java computes the bucket index by combining the hash with the number of buckets you need.. the bucket index by combining the hash with the number of buckets you need to have an even distribution of the lower bits of.. of the hash value to spread the entries evenly into each bucket. As to proving the statement that this bounds the number of..
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