Here I am writing a way to implement Hashset. HashSet creates hashtable to store the data. As it implements Set interface so it doesnt contains duplicate elements. It also extends AbstractSet class.

A HashSet is a collection class in Java that implements the Set interface. It stores unique elements and does not allow duplicates. Internally, it uses a hash table to store the elements, which ...

Hi, I found a bug using mockito on JDK 17 (Temurin) and Linux Ubuntu 22.10. If we spy the HashSet and after add some value, it should throw NullPointerException. On JDK 11 it works fine. The test is: ...

The most common approaches to removing duplicates from a List in Java include the following: A brute force comparison using nested loops. The use of a HashSet to find the unique duplicates. A combined ...