Core Java23 articles

Table of Contents Why is the finalize() method deprecated/removed?How does Cleaner relate to Java Reference classes?Behind the scenes of CleanerCleaner vs. try-with-resourcesAvoid overusing CleanerConclusionFurther ResourcesGarbage collection in Java takes care of memory management, but it does not clean up non-memory …

Table of Contents ExampleException tableBytecode instructionsTry-catch-finally flowLess nice flowSummarized flowIt’s interesting to know how the JVM runs bytecode instructions… But do you know what is going on when an exception is thrown? How does the JVM handle the delegation of …

Table of Contents The scenario: The complex objectThe traditional approach: Telescoping constructorsFavor Static Factory Methods over Class ConstructorsMany parameters? Use the Builder patternRestricts the order of method calls in the Builder patternConclusionKey TakeawaysFinal ThoughtsWe often hear the phrase: “Make the …

Table of Contents Functional nature of the code and nullConclusionReferencesThe newest release JDK 23 [2] comes with a neat extension to pattern matching for switch and instanceof statements, JEP-455: Primitive Types in Patterns, instanceof and switch [1]. While the introduction …

In this article, we’ll examine cache misses and, in general, learn about the caching concept and how to implement it in Spring Boot.

Increase readability, reduce cognitive complexity, and avoid bugs that are hard to spot with Java’s Pattern Matching.

Cay Horstmann shares his experiences with Java, his writing process for technical books, the challenges of teaching Java, and discusses its role in education.

One of my hobbies is regularly searching the JDK for new Java classes with executable main methods.

While having a class that directly extends Throwable is surprising, it is allowed and is also useful for providing additional information.