Use a HashSet to automatically dedupe the List. Write your own Java algorithm to remove duplicates from a List. Optimize your own algorithms with standard Java classes. Remove duplicates with Java’s ...

import java.util.HashSet; ... Using composition for this scenario allows the CharacterCompositionExample class to use just two of HashSet‘s methods, without inheriting all of them.

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 ...