How HashMap resolves hash conflicts in Java

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Container corresponding to hash table (hash table)

HashMap 、 hashset 、 HashTable 、 concurrentHashMap

The container corresponding to the tree

Treemap 、 treeset

What is Hash conflict

Two different key calculate the same hashcode value.

Solution method

Open addressing method key= (f (key) + di) mod m

Chain address method

Re-hash

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