Core Java
-
How to Use Avro to Serialize and Deserialize Dates
Working with dates and timestamps in data serialization can be tricky, especially when consistency and precision matter. Avro, a popular…
Read More » -
GitHub Access with Java
The GitHub API enables developers to programmatically interact with GitHub’s services. Using the github-api Java client library (developed by Kohsuke…
Read More » -
How to Use Java 21’s Virtual Threads in Real-World Web Applications
With the release of Java 21, virtual threads — part of Project Loom — are now stable and production-ready. This…
Read More » -
Running Java Apps on AWS Lambda with SnapStart: Is It Production-Ready Yet?
Running Java applications on AWS Lambda has always faced one major challenge: cold starts. Especially when using Spring Boot, startup…
Read More » -
@Context Complex Source Mappings Example
1. Introduction The org.mapstruct.Context annotation from MapStruct, a Java annotation processor for generating type-safe bean mapping code, marks a parameter…
Read More » -
Running Java Programs in the Background
Running a Java program in the background is crucial for keeping applications or services active even after terminal sessions end.…
Read More » -
Fixing Java DateTimeParseException with LocalDateTime
When working with Java’s java.time package, we sometimes encounter the DateTimeParseException with the message:“Unable to obtain LocalDateTime from TemporalAccessor”.This error…
Read More » -
Java Currency Code Symbol Mapping Example
In financial applications, e-commerce platforms, or internationalization (i18n) support, you often need to convert a currency code (like "USD", "EUR",…
Read More » -
Count Files Recursively in Java
Working with file systems is a vital part of many Java applications, and counting files recursively in a directory tree…
Read More »
