Ready to be published? LXer is read by around 350,000 individuals each month, and is an excellent place for you to publish your ideas, thoughts, reviews, complaints, etc. Do you have something to say to the Linux community?
In the Java programming language, a hashmap is a list of associated values. Java uses hashmaps to store data. If you keep a lot of structured data, it's useful to know the various retrieval methods available.