Java
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Jackson MongoDB POJO Mapping Example
In Java-based applications using MongoDB, converting data between MongoDB’s native document representation and Java Plain Old Java Objects (POJOs) is…
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Java’s Checked Exceptions: The 20-Year Experiment That Failed
In 1996, Java introduced a bold experiment: checked exceptions. The compiler would force developers to handle errors, making software more…
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Spring Data JPA save() Method Explained
In Spring Data JPA, the save() method is commonly used to persist or update entities. A frequent misconception is that…
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Getting Started with MyBatis Dynamic SQL
MyBatis Dynamic SQL is a type-safe Java DSL (Domain-Specific Language) for building SQL queries programmatically instead of writing SQL strings…
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Scala’s Implicits: The Feature So Powerful It Had to Be Split in Two
Few programming language features inspire such polarized reactions as Scala’s implicits. To advocates, they’re elegant magic that eliminates boilerplate and…
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Getting Started with JUnit 5 Testing in Micronaut
Micronaut makes testing Java applications straightforward with native JUnit 5 integration. Its lightweight dependency injection, embedded server support, and simple…
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Handling Null Values with MapStruct
MapStruct is a compile-time code generation framework that simplifies mapping between Java beans by eliminating boilerplate conversion code and relying…
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Metaprogramming as Art: The Aesthetics of Code That Writes Code
There’s something magical about code that writes itself. Metaprogramming—the practice of writing programs that manipulate other programs—sits at the intersection…
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Transposing a double[][] Matrix in Java
Matrix manipulation is common in Java applications, from data analytics to machine learning, and matrix transposition is one of the…
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