MCQ on Spring and Hibernate Hibernate java Java MCQ MCQ Spring Spring Boot by devs5003 - September 14, 2023May 5, 20251 Rather than going through some theoretical or practical way of learning Spring & Hibernate frameworks, we will test our understanding of Spring & hibernate via solving multiple choice questions (MCQs). In this article, we will talk about 'MCQ on Spring and Hibernate'. Answer & Explanation of each question are provided next to each question. These questions are newly introduced on the web for the first time, having been created with significant effort. You may also find these questions in some other websites/blogs after publishing this page. Someone who likes the questions & interested in copying the questions can just provide a reference of this page as a link rather than copying the whole questions. Examiners, test conductors are encouraged to make use
How To Add JDK 20 Support In Eclipse Core Java eclipse java jdk 20 by devs5003 - August 31, 2023October 9, 20250 Eclipse not recognizing Java-20, How to add JDK 20 support in Eclipse 2023-03?, jdk20 IDE , jdk20 eclipse, eclipse jdk20, eclipse java 20, java 20 eclipse, eclipse java 20 support, eclipse for java 20, JDK 20 support in Eclipse 2023-03 - java, add java 20 to eclipse, how to add java 20 to eclipse, eclipse openjdk 20, eclipse java 20 plugin, eclipse support java 20, jdk 20 eclipse, eclipse compiler compliance level 20 not available, sts java 20, add jdk 20 to eclipse, how to add jdk 20 in eclipse Oracle has released JDK 20 (the eleventh six-month release) in March, 2023 and it's general availability date is 2023/03/21. JDK 20 will be a short-term feature release that is supported for
Sealed Class In Java Core Java java Java 17 jdk 17 by devs5003 - August 28, 2023May 1, 20250 Java has transformed remarkably over the years, introducing new features and enhancements to make the language more robust and secure. One such feature introduced in Java 15 as a preview is the 'sealed' keyword for classes and interfaces. It was included in Java 17 as a final feature. Sealed classes and interfaces provide improved control over the inheritance hierarchy. In this article, we will explore sealed class in Java & sealed interfaces, including their syntax, rules, code examples, and related concepts. What is a sealed keyword in Java? In Java, the sealed keyword is used to control and restrict the inheritance hierarchy of classes and interfaces. It allows us to specify which classes or interfaces are allowed to extend or implement a
logback xml Configuration Examples java Logging Spring Spring Boot by devs5003 - August 23, 2023November 9, 20252 When it comes to implementing Logging feature in our application, especially in Spring Boot based applications, Logback comes into the picture. Typically, logback configuration comes in the form of XML file (logback.xml) for the developers to use. It provides a powerful, responsive, and reliable solution in configuring the application's logging. It ensures consistent and customizable logging behavior, simplify maintenance, and offers dynamic adjustments. All of them are crucial for effective application monitoring, debugging, and troubleshooting. Logback is an open-source project with a strong engagement to reliability and robustness. Logback offers a broad range of configuration options through logback.xml, allowing us to customize our logging setup to accurately match our application's requirement. We can control log levels, formats, destinations, and filtering rules.
Logger In Spring Boot java Logging Spring Spring Boot by devs5003 - August 15, 2023November 9, 20251 We often pay very less attention on the implementation of logging during the development phase of an application. On the other hand, it becomes mandatory when we deploy the application in production. Sometimes we just insert 'System.out.println' statements as a shortest path, which is a bad practice in the production level applications. Logging serves as a crucial tool for developers by providing insights into the inner workings of an application. It also assists in diagnosing issues, and helping in the overall monitoring and maintenance of the software. In this article, we will learn logger in Spring Boot and related concepts with extensive amount of examples. What is a Log? In software development, "log" represents a report containing the history of events, activities, or
Stream Java 9 Improvements Core Java java Java 9 Stream API by devs5003 - July 31, 2023December 11, 20240 Java Stream API became an important feature with the release of Java 8, enabling developers to perform functional-style operations on collections with comfort. Subsequently, Java 9 introduced a new set of improvements that additionally improved the capabilities of streams, making them even more powerful and developer-friendly. In this article, we will explore the stream java 9 improvements, including complete code examples, highlighting their advantages in writing cleaner, shorter, and effective code. Stream Java 9 Improvements Java 9 has introduced a set of improvements in Stream API methods to enhance its capabilities and making it more developer-friendly. Some of the major improvements are: 1) takeWhile() 2) dropWhile() 3) iterate() 4) ofNullable() Let's go through them one by one in the subsequent sections. takeWhile( ) The takeWhile() method is an enhancement
How to deploy Spring Boot Application in Docker? Docker java Spring Boot by devs5003 - July 29, 2023April 17, 20254 Have you ever observed that an application runs successfully in development environment, but the same application with the same code creates multiple issues while running in the production environment? If not, you may observe this in near future when you follow traditional deployment procedure. Generally in traditional deployment, we copy the code from development server to the production server and carry out some other configurations. Further to avoid issues generated during production deployment, we should once think of Docker concept. Therefore, we are going to learn 'Spring Boot Docker: How to deploy Spring Boot Application in Docker?'. If you are a Java developer working in IT industry for the last few years, then you must have heard about Docker. Docker and
Spring Boot MVC REST Annotations With Examples Spring Boot java Spring by devs5003 - July 24, 2023January 9, 20241 In this article, we will discuss on 'Spring Boot MVC REST Annotations With Examples'. Needless to say, these annotations are very important for creating a web application in Spring Boot. If you want to learn all annotations which are generally used in a Spring Boot Project, kindly visit our article 'Spring Boot Annotations with Examples'. Let's discuss about 'Spring Boot MVC REST Annotations With Examples' here only. Spring Boot MVC REST Annotations With Examples Spring MVC and Spring REST are two different aspects of the Spring Framework. These both deal with building web applications, but they fulfil different purposes and use slightly different sets of annotations. Spring MVC (Model-View-Controller) is a design for building web applications that follow the traditional Model-View-Controller pattern. We
Spring Boot Bean Annotations With Examples Spring Boot java Spring by devs5003 - July 20, 2023May 8, 20253 In this article we will discuss on 'Spring Boot Bean Annotations with Examples'. Needless to say, these annotations play a crucial role in creating basic as well as enterprise level Spring Boot Applications. If you want to learn all annotations which are generally used in a Spring Boot Project, kindly visit our article 'Spring Boot Annotations with Examples'. Let's discuss about 'Spring Boot Bean Annotations with Examples' here only. What is a Java Bean? Java Bean is a simple java helper class, used to transfer data between classes or applications. Typically, it doesn't act as a main class, but like postman or delivery boy between two classes. It doesn't contain any logic. There are some standard guidelines to develop a Java Bean class: 1.
Exception Handling In Java MCQ Core Java java Java Exceptions Java MCQ MCQ by devs5003 - July 19, 2023September 3, 20250 Being a Java developer, you must be familiar with the importance of Exception handling in Java. Undoubtedly, Exception handling is the most important for you. You can’t imagine even a small project in Java without the implementation of Exception handling. Moreover, in order to work in an industry level project, you must have a good knowledge on Exception handling in Java. Apart from going through theoretical concepts multiple times, it is highly advisable that developers need much coding practice on Exception handling. In this article, we will be doing theoretical & code practice on ‘Exception handling in Java’ in the form of MCQs that are frequently asked in the interviews as well. Definitely, you must find this article beneficial whether it