Learn how to represent the furthest possible date using the java.util.Date and java.lang.Long classes.

Learn the differences between the asterisk and the question mark special characters in cron expressions.

The NoSuchElementException exception occurs when accessing an element that doesn't exist. Find out the best practices of avoiding it and writing robust code.

Explore the ways to handle exceptions that occur in CompletableFuture stages.

Learn about using Optional as a record parameter and understand why it's a bad practice.

In this post, we delve into the intricacies of Serial GC tuning, uncovering techniques and best practices aimed for your Java applications.

We look at how to use TimeUnit to convert durations between units and avoid creating our own hard-to-read math code.

Region pinning for G1, Spring meets CDS, class-file API, new features for Java 22, and tech predictions for 2024. Good stuff.

Unnamed patterns, Spring boot 3.2, generational ZGC, custom JFR events, index selectively, and chopping a monolith

In this tutorial, we learn how to declare and initialize constant variables.

Explore multiplе mеthods for rounding up a numbеr to thе nеarеst multiplе of 5 in Java.

Compare String and StringBuffer classes.

Learn how to use the skip() method to skip bytеs within a Java InputStrеam.

Learn how to unit test a CompletableFuture using black-box and state-based testing techniques.

Learn how to use the Java Stream API and third-party libraries to find the index of the first element in a List that matches a boolean condition.

Explore thе constraints and considеrations rеlatеd to thе maximum lеngth of strings in Java.

To avoid NullPointerException when using findFirst() in Java, filter the stream before calling findFirst() or use Optional#ofNullable() to wrap values in an Optional object.

Learn how to use a UUID to generate a unique numeric value.

Explore several ways to increment the value of a Map entry.

Learn how to turn an integer in Java from negative to positive and vice versa.