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Hi, I am explaining the difference between HashSet and TreeSet in Java. First of all they both come from the same family. They implement the Set Interface. In HashSet, values store in random order.

Hashtablethis class has implemented map interface, before using this data structure you should know their internal implementation hashtable class decleration-<p>public class hashtable<k,v> ...

In this quick tutorial on how the Java HashMap works internally, you'll learn the following aspects: The basic syntax of the Java HashMap. How keys, values, hash codes and node references interact.

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 ...