Core Java
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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…
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@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…
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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.…
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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…
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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",…
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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…
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Rust vs. Java: A Comparison for Android Development
1. Performance and Memory Safety One of the biggest advantages Rust has over Java is its performance and memory safety.…
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Map an Empty String to Null Using MapStruct Example
1. Introduction An empty string (“”) is the String object with an intentional blank value. Null is a literal used…
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Swing Meets AI: Integrating GPT-4 Vision for Accessibility
In a world where inclusive design is no longer optional, desktop applications—especially those built with older frameworks like Java Swing—must…
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