Reading Time: 4 minutes In this blog, we will be talking about Spark RDD, Dataframe, Datasets, and how we can transform RDD into Dataframes and Datasets. What is RDD? A RDD is an immutable distributed collection of elements of your data. It’s partitioned across nodes in your cluster that can be operated in parallel with a low-level API that offers transformations and actions. RDDs are so integral to the Continue Reading
Reading Time: 4 minutes In this article, we will discuss match expressions and pattern matching in Scala. A match expression contains one or more case statements which are used to match against possible values. Match expressions in Scala are comparable to switch statements in other programming languages such as JavaScript or Java. They are an alternative to a series of if/else statements. Match expressions have some differences from switch Continue Reading
Reading Time: 3 minutes Hi folks, here I am in this article going to explain Regular expression. How to form regular expression in Scala. What is Regular Expression: A regular expression is a string of characters and punctuation that represents a search pattern. Popularized by Perl and command-line utilities like Grep, regular expressions are a standard feature in the libraries of most programming languages including Scala. In Scala, we Continue Reading
Reading Time: 3 minutes What is Singleton Class? First of all, let us discuss what is singleton class is. We can define a singleton class in such a way that only one instance of the class can create and we can use that instance everywhere. We can use a singleton class where we need only one instance of the class like NetworkService, DatabaseService, etc. Generally, it is done because Continue Reading
Reading Time: 3 minutes The Design Patterns are programming language independent strategies for solving a common problem. By using design patterns, you can make your code more flexible, reusable, and maintainable. These solutions were obtained by trial and error by numerous software developers. Types of Design Patterns There are following types of design Patterns in Rust for solving our problems : Behavioural Creational Behavioural Patterns Behavioural design pattern are design patterns that Continue Reading
Reading Time: 3 minutes In this blog, we will learn about the java 8 features and why java 8 is so much popular. After java 8 Java has started supporting the functional style of programming with its Java 8 release. The basic idea of why java enables functional programming is concise the code, less complex, easy to understand, and easy to testing compare to legacy coding styles. Here are Continue Reading
Reading Time: 2 minutes Today we are going to deep dive into the Scala Cats again to find out about Monoids. If you haven’t already read my post about Diving into Scala Cats – Semigroups I suggest you do so now. What are Monoids? The Monoid extends Semigroup and adds a default or fallback value for the given type. Monoid type class comes with two methods – one is the combine method of Semigroups, Continue Reading
Reading Time: 2 minutes Diving into Scala Cats – Semigroups
Reading Time: 3 minutes Introduction This article is about Scala Cats. It is a library which provides abstraction for functional programming in the Scala programming language. The name is a playful shortening of the word category. Cats is a lightweight, modular, and extensible library for functional programming. Cats contains a wide variety of functional programming tools and allows developers to pick the required ones. The majority of these tools Continue Reading
Reading Time: 2 minutes We all have done I/O operations in our code which used to be very troublesome when it comes to always keep in mind closing the resources once the usage has been made. But, when in Java 7, Try-With-Resource was introduced, this limitation was taken care of. Now a user needs not to worry about the open resources. To understand what enhancements have been done in Continue Reading
Reading Time: 3 minutes This blog talks about the enhancements and improvements done in Future library as part of Java9 release.
Reading Time: 4 minutes With the introduction of Java 9, various improvements have been made in the Process API. Process API in Java 9 version helps to manage and control operating system processes. In Java 8 and earlier versions, the API lacks some key functionality, which makes handling processes in Java a mess. The limitations of the API often force developers to resort to native code in earlier Java Continue Reading
Reading Time: 3 minutes Java Shell tool (JShell) has been introduced as a part of JAVA 9. It is a Read-Evaluate-Print Loop (REPL), which evaluates declarations, statements, and expressions as they are entered and immediately shows the results. The tool is run from the command line. In this blog, we will learn about this interactive tool that can be used for learning the Java programming language and prototyping Java Continue Reading
