TheServerSide

How a Java HashMap internal implementation works

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 ...
GitHub

A fixed-size hash map using primitive types to associate string keys with object references

HashMap.java and HashMapTest.java can be used by running the following in command line: Where the worst case runtime occurs when all n elements collide into the same bucket in the HashMap and the data ...
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

Phone directory using hashmap.java

* This program lets the user keep a file named "phone book" that contains 2 * categories that are names and phone numbers. The data for the phone book is * stored in a file in the user's home ...