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Executing operations one after another is easy. However, sometimes we desire more - parallelism. Are you sure you know how to execute tasks in parallel in Java? If not, let me show you how to start multiple threads with ExecutorService, give them some tasks and wait for the result.
Have you ever wondered why database operations in your application are slow? Is it because of the database or Hibernate or both? Is there anything that can be done to improve that? What are those mysterious database indexes? Does using Hibernate leave me no field for performance optimization?
Imagine arriving at your workplace one morning, opening up your computer, and logging into your Oracle Database only to get the dreaded ‘error’ report, which says that all the information you saved the previous day has been wiped away.
The mere thought probably makes your skin crawl, right?
Active, inactive, saved, verified, sent, completed. Do they seem familiar? If so, you have had a potential use case for State design pattern. Would you like to learn it? Then, let's do it.
Memento is a design pattern that represents one of the possibilities to implement save and restore functionality.
How user passwords should be stored in a database? Some systems keep them in cleartext, some encrypt them, some use hash functions. What must be done to ensure proper security for our users? Which hashing algorithms are good and which are bad?
Although automatic watching for changes and rebuilding bundles is a great webpack feature that improves development, there is some more manual work that needs to be done before you see the result in the browser. I would like to show you how webpack-dev-server can help you.
Is a cloud the future? I do not know but it is the presence for sure. Check forty fith question of full-stack dev quiz to check if you know AWS products.
Do you share my feeling that any problem with encoding in MySQL database wastes a lot of your time? A few different settings, multiple possible combinations, you tried many of them and it is still not working? Maybe one of them was correct but should I restart MySQL instance, the whole server, the data center? Aaaaargh.
