Core Java
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The Power of Wrapper Classes in Java
In the world of Java programming, primitive data types reign supreme for their efficiency in storing basic values like numbers…
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A Guide to Interfaces and Abstract Classes in Java
Java, a powerhouse programming language, offers a variety of tools to write clean, maintainable, and reusable code. Two of these…
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Finding a Key’s Index in Java LinkedHashMap
The Java LinkedHashMap class combines a hash table and linked list to maintain predictable iteration order, unlike HashMap. However, LinkedHashMap…
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Moshi BigDecimal requires explicit JsonAdapter
When working with JSON in Java, handling numerical data with precision is crucial, especially in financial applications. The BigDecimal class…
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MapStruct With Inheritance Examples
1. Introduction MapStruct is an open-source, compile-time code generator, and annotation processor. It simplifies the implementation of mappings between different…
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Unit Testing of ExecutorService in Java With No Thread sleep
Unit testing concurrent code, especially code utilizing ExecutorService, presents unique challenges due to its asynchronous nature. Traditional approaches often involve…
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Java Stream contains, containsAny and containsAll examples
The Java 8 Stream API provides various methods for operating on sequences of elements, such as filtering, mapping, and collecting.…
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Java Object Mapping Made Easy: A Guide to MapStruct
Juggling data conversions between different object structures can be a tedious and error-prone task in Java applications. Traditionally, developers write…
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Casting Maps into Complex Objects in Java
In Java, there is often a need to convert a Map to a complex object (POJO – Plain Old Java…
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