Usually, Java developers instantiate Maps using HashMap as implementation. Did you know HashMap doesn’t keep the order of insertion? Look at the following example: If we run the example above, the following output will be printed: So, if you want to keep the elements in… Read More »How to Keep the Elements of a Map in the Same Order That They Were Inserted
Here’s how to find the maximum value from a Collection in Java. If you have any questions, leave a comment or ask me on my social media.
Here’s how to split Strings in Java. If you have any questions, leave a comment or ask me on my social media.
Here’s how to join Strings in Java. If you have any questions, leave a comment or ask me on my social media.
See what happens when you pass a double as argument when constructing BigDecimal objects in Java. If you have any questions, leave a comment or ask me on my social media.
Here’s how to create a lazily initialized singleton in Java. If you have any questions, leave a comment or ask me on my social media.
Here’s a talk that I gave at the Jacksonville Java User Group that shows you how you can increase the quality of your code. You’ll see code enhancement examples with key features that came from Java 9 to 17.
Here’s how to use Callable and Future to run parallel tasks in Java. If you have any questions, leave a comment or ask me on my social media.
Here’s how to sort a Map by its values in Java. If you have any questions, leave a comment or ask me on my social media.
Here’s how to use an in-memory file system in your tests with Google’s Jimfs. If you have any questions, leave a comment or ask me on my social media.