Core Java
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JUnit AutoClose Extension Tutorial
Junit 5 has brought numerous enhancements and new features to the table, making unit testing more powerful and flexible. One…
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Naming Executor Service Threads and Thread Pool in Java
In Java, ExecutorService is a framework that provides a way to manage and control thread execution. It helps in creating…
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Mastering Jackson’s @Json Annotations: A Developer’s Guide
Jackson is a popular Java library for handling JSON data. It provides a rich set of annotations that can be…
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Verify List Elements with Specific Properties Using Hamcrest
Hamcrest is a powerful framework used for writing matcher objects, which are helpful when writing tests in Java. One common…
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Hamcrest Collection hasItem() Example
In Java, it’s common to check whether a collection contains a specific element. This is a frequent task in testing…
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JPA Inheritance vs Composition Spring Boot Example
1. Introduction Inheritance is an “IS-A” type of relationship in object-oriented programming (OOP). Inheritance is tightly coupled since child classes…
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Enhancing Java Objects with the Decorator Design Pattern
The Decorator design pattern is a structural pattern that provides a flexible way to add new behaviors to objects dynamically…
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Java Array: Count Distinct Elements Frequencies
In programming, one common task is counting the number of times a specific element appears in an array. This is…
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Maven Spotless Plugin for Java
Maintaining a consistent code style across a project is crucial for readability, collaboration, and long-term maintainability. The Maven Spotless Plugin…
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