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The Java Collections Framework is a fundamental and essential framework that any strong Java developer should know like the back of their hand. A Collection in Java is defined as a group or collection of individual objects that act as a single object. There are many collection classes in Java...
Vuk Skobalj
Converting a primitive int, or its respective wrapper class Integer, to a String is a common and simple operation. The same goes for the other way around, converting a String to Integer. Converting Integer to String When converting an int or Integer to a String, there are four approaches. The...
Converting a String to an int, or its respective wrapper class Integer, is a common and simple operation. The same goes for the other way around, converting a Integer to String. There are multiple ways to achieve this simple conversion using methods built-in to the JDK. Converting String to Integer...
Spring Data JPA is a part of the Spring Data family. Let's talk about what Spring Data JPA is and some of the features we're going to cover in this article. First off, this framework builds upon the popular and powerful Spring framework and is considered one of the core...
In this article, we'll dive into the Swagger framework. We'll use Swagger2 to design, build, and document a Spring Boot RESTful API and Swagger UI to observe our endpoints and test them. What is Swagger? Swagger is the most widely used tool for building APIs compliant to the OpenAPI Specification...
The main subject of this article is advanced data processing topics using a new functionality added to Java 8 – The Stream API and the Collector API. To get the most out of this article you should already be familiar with the main Java APIs, the Object and String classes, and...
In professional IT circles, especially among data center specialists, Docker has been an extremely important topic for years. Containers have been used for a long time in computer science, and unlike other types of virtualization, containers are running at the top of the operating system kernel. That being said, virtualization...
Please note: The following article will be dedicated to testing Spring Boot applications. It's assumed that you are familiar with at least the basics of Java, Maven and Spring Boot (Controllers, Dependencies, Database Repository, etc). There is a general lack of testing in most organizations. Maybe even your team is...
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