Scala Collections are the containers that hold sequenced linear set of items like List, Set, Tuple, Option, Map etc. Collections may be strict or lazy. The memory is not allocated…

In this post, we are going to discuss about Scala Variance and it’s use cases. What is Variance? Variance defines Inheritance relationships of Parameterized Types. Variance is all about Sub-Typing.…

Today we will learn how to create Oracle Type Object. If you are working on a large project with lots of tables and data, you might have seen the usage…

The names of variables, classes, objects and methods are collectively called Identifiers. Scala identifiers are case sensitive. We have been using identifiers all through the tutorial series. Let us now…

Variance refers as how subtyping between complex types relates to subtypes of their components. Scala supports variances annotations of type parameters of a generic class. The type of variance annotations…

Grafana is a free and open-source monitoring system that is used for monitoring and visualizing metrics from host machines. It provides intuitive and appealing dashboards, and analytics coupled with the…

Scala Option can be defined as container that holds zero or more elements of the given type. The option[T] can return Some[T] or None object which represents a missing value.…

In software programming, certain situations may arise where we need to execute a block of code several times. The loop statements helps in this repetitive tasks and are executed sequentially.…

Nginx is a robust, fast, reliable and dynamic open-source web server popular for serving high traffic sites. In addition, it is well renowned for its ease of configuration, high scalability,…

Scala extractor is an object which has a method called unapply as one of its members. The unapply method matches a value and take it apart. The extractor also defines…