Hashing In Java is a technique that is used for mapping values to the key, which in turn makes it easy to retrieve values by just entering the key. The main advantage of using HASHING in java is that it reduces the time complexity of any program and allows the execution time of essential operation to remain constant even for the more significant side given. But the main problem of the hashing function is that it leads to the collision as two or more keys can point to the same values.

If we want to avoid this chain, hashing is mainly used. So, to insert a value in a hash table, the main requirement is a hash index which is calculated using the formula.

Hashing In Java Example

In hashing, there is the hash function that maps keys to some values.

But these hashing functions may lead to a collision that is two or more keys are mapped to the same value.

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