Java
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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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Spring JPA LIKE Query Example With JdbcTemplate or JpaRepository
LIKE queries in SQL allow users to search for specified patterns in the database table columns, enabling flexible and dynamic…
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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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Spring Boot JpaRepository Example
Hello readers let us delve into understanding the Spring Data JPA module. 1. JpaRepository interface Spring Data JPA provides a…
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Lucene MMapDirectory and ByteBuffersDirectory Examples
Apache Lucene is a powerful search library written in Java. It provides various directory implementations for storing index files, such…
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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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