Have you worked with the Set collection in your projects?

Yes, in my projects I have used the Set collection in Java to store unique elements without a specific order. For example, when I needed to quickly check for the presence of an element or remove duplicates from a list.

Example of usage:

import java.util.HashSet;
import java.util.Set;

public class Example {
    public static void main(String[] args) {
        Set<String> uniqueNames = new HashSet<>();
        uniqueNames.add("Anna");
        uniqueNames.add("Ivan");
        uniqueNames.add("Anna"); // duplicate will not be added

        for (String name : uniqueNames) {
            System.out.println(name);
        }
    }
}

In this example, HashSet automatically excludes duplicate values, which is convenient for working with unique data.