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Interfaces in Java are one of the basic concepts of object-oriented programming that are used quite often alongside classes and abstract classes. An interface represents a reference type, meaning that it is essentially just a specification that a particular class that implements it needs to obey. Interfaces can contain only...
Branko Ilic
Calculating the square root of a number is one of the common operations we do in computer science. This simple mathematical function finds its use in all areas of programming - be it in algorithms or any other mathematical model we wish to represent, we'll most likely use square roots...
More often than not we find ourselves counting the number of days from or to a particular date. Luckily, doing just that in Java is not very hard, and there are also quite a few ways to do it. So, in this article, we'll be taking a look at how...
Jackson is a powerful and efficient Java library that handles the serialization and deserialization of Java objects and their JSON representations. It's one of the most widely used libraries for this task, and runs under the hood of many other frameworks. For instance, while the Spring Framework has support for...
Reham Muzzamil
Spring Boot applications ship with an embedded server, and the default port for them is 8080. Whether some other service already inhibits this port, or whether you'd like to create a new microservice on a new one - in this guide, we'll take a look at how to configure the...
David Landup
Tuples are immutable and ordered sequences of elements. In that regard, they're similar to immutable lists - however, commonly, tuples are used to represent pairs in Software Engineering. It's worth noting that they're not limited to being pairs and can be of n-length. Java has great support for immutable lists...
MongoDB is a document-based NoSQL database, that stores data in BSON (Binary JSON) format. Like with any database, you'll routinely make calls to read, write or update data stored in the document store. In many cases, retrieving data isn't as simple as just writing a single query (even though queries...
A stream represents a sequence of elements and supports different kinds of operations that lead to the desired result. The source of a stream is usually a Collection or an Array, from which data is streamed from. Streams differ from collections in several ways; most notably in that the streams...
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