A frequently asked question in a Java interview is: How to implement a Java HashMap? Java job seekers must fully grok this important concept if they want to ace the interview. The HashMap tutorial ...

This commit provides a new feature to compare elements of commonly used objects of same types like Map, HashMap, LinkedHashMap, ConcurrentHashMap, Hashtable ...

I setup an oauth2 system which is based on In-Memory token store. I tried the login stress test for my oAuth2 system. if the number of login users grows to 500K, the old gen is full. the server ...

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 ...

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 ...

package dustin.examples; /** * Enum representing select western states in the United Sates. */ public enum States { ARIZONA("Arizona"), CALIFORNIA("California ...