Java is a simple, secured, high level, platform-independent, multithread, Object-oriented programming language.
It’s one of the most popular and widely used programming language, platform, and technology. Java is not only a language it is also a platform and technology.
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Unit Testing in Java | We will discuss what is unit testing, how to perform unit testing using JUnit, what are different tools available for testing in Java, etc. Also see:- Testing means matching expected results with actual results. If matched then the test result is positive (test succeeded), if not matched then the test […]
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JUnit Assert Methods Example | It is used to validate the Test, whether the current test is pass or fail. Here, the excepted value is compared with the actual result. Also see:- Junit 5 has provided class: Assertions (org.junit.jupiter.api) which contains all static method “assert methods”. Assert methods are used to compare expected values with
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JUnit Annotations with Examples | We had introduced unit testing in Java, now we will see JUnit and later introduce Mockito. Also see:- Unit testing: Here unit indicates a part of a project which can be a task/story. Once the code is completed by the developer, then that part must be tested. Unit testing =
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CrudRepository Examples in Spring Data JPA | We will see the commonly used methods of the CurdRepository along with the examples. Create a Spring Boot project and include the following dependencies:- Spring Data JPA, Lombok, MySQL Driver. application.yml Entity class:- Repository:- Runner for testing:- After running the application, it will create the table and execute
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How Could Java Impact Generative AI? Java’s reputation as a secure and reliable coding language makes it popular for building enterprise-grade applications. Among its frameworks, Java 8 is a top choice, used by 69% of developers to create enterprise-level software. Java’s rich ecosystem of libraries and development tools empowers engineers to construct scalable and robust
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Project Lombok Annotations With Examples | It is an open-source Java API, used to generate code for constructors, set/get methods, toString, equals and hashCode etc. To use Lombok API, we should enable/activate Lombok in STS/Eclipse then we can use Lombok API Annotations. Lombok Activation Steps:- In the Spring Starter project, while creating the project we
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CopyOnWriteArraySet in Java | It is the part of java.util.concurrent package and works as a synchronized version of the Set. Also see:- CopyOnWriteArrayList In Java, ConcurrentMap Interface in Java Constructors of CopyOnWriteArraySet It doesn’t contain any specific methods. Example Program Difference between CopyOnWriteArraySet and synchronizedSet() CopyOnWriteArraySet SynchronizedSet() It is thread-safe because every update operation will
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CopyOnWriteArrayList In Java | It is a thread-safe version of ArrayList. As the name indicates CopyOnWriteArrayList creates a cloned copy of the underlying ArrayList for every update operation at a certain point both will synchronize automatically which is taken care by JVM internally. Constructors of CopyOnWriteArrayList CopyOnWriteArrayList.addIfAbsent() Method in Java boolean addIfAbsent(Object o):- The element
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ConcurrentMap Interface in Java | We have seen why Concurrent collection was introduced and the difference between traditional collection (java.util package) vs concurrent collection (java.util.concurrent package). The ConcurrentMap interface defines many methods. Some of the mostly used methods are as follows:- putIfAbsent() Method of ConcurrentMap Interface in Java Method signature:- V putIfAbsent(K key, V value);
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