GitHub

# HashSet & HashMap & HashTable in Java

**1\) Implementation:** HashMap implements Map interface and HashSet implements Set interface. **2\) Duplicates:** HashSet does’t allow duplicate values. HashMap store key, value pairs and it does not ...
TheServerSide

HashMap vs. Hashtable: Which map should you choose?

While the Hashtable was part of the initial Java release over two decades ago, the HashMap is the correct key-value store to use today. One key HashMap vs. Hashtable difference is the fact that the ...
GitHub

38.collection-framework---HashMap-and-Hashtable

import java.util.HashMap; import java.util.Hashtable; import java.util.Map; import java.util.Scanner; public class SimpleUserInputMap { public static void main(String ...
InfoWorld

Cannot Assume Serializability for Java Map’s Nested Classes

A colleague of mine recently ran into an issue that I have not run into myself, but found to be interesting and, in my opinion, worth blogging about here. During some distributed Java development, my ...