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Reading Time: 3 minutes In this world, everyone is interested in the spikes whether it is related to professional thing or personal. In this blog, I am going to give you spikes of the programming practices in Rust. Error Handling – process of handling the possibility of failure Today, every programmer is worried whether he has implemented error handling in right manner or not. There are various ways to Continue Reading
Reading Time: 2 minutes Hello readers, as you have visited here, you must be aware of Interfaces in Java. Before Java 8, all methods defined in an interface are public and abstract by default. After Java 8, there were certain enhancements in interfaces. Amongst all the enhancements in Java 8, one of them is “Functional Interface”. What are Functional Interfaces? In Java, the term functional interface refers to those Continue Reading
Reading Time: 3 minutes In this blog, we are going to talk about Partially applied functions and its use case. Before starting, first, we will emphasize that though Partial functions and Partially applied functions sound similar they are different from each other. To understand Partial Functions refer. What is function application? Applying a function is called calling a function. When we pass all arguments of the function, we can Continue Reading
Reading Time: 4 minutes In the previous post, we had a look at the reasons behind the monads and how monads can help us design the programs in a functional style. Now we are going to explore some of the monads which are frequently used in the applications but not available within the Scala predefined libraries. We will be exploring the monads which are provided by the scala-cats functional Continue Reading
Reading Time: 5 minutes Monads in Functional Programming play an important role but they mostly confuse the beginners. One of the reasons for the confusion is that they mostly have a knowledge of imperative style programming, where they have no idea about function composition and its importance. In the terms of functional programming, the composition is the root where we have a set(Z) and we compose the elements of Continue Reading
Reading Time: 3 minutes In our previous blog, we have seen how we can handle exceptions using try/catch and Try block. In this blog, we will explore how we can handle exceptions using Either. Either, just like a Try, is also a container type which can have one value either Left or Right at a time. We can also use Option to handle exceptions but if an exception occurs returning Continue Reading
Reading Time: 3 minutes While building an application, it is common that something might go wrong. What if there is an attempt to divide a number by 0 or fetching the data from the database which does not exist, or reading a file which can’t be located? We need to handle such situations to make sure our application does not go down. Every language provides ways to handle such Continue Reading
Reading Time: 4 minutes In functional programming, we have various pillars like Functors, Monads, Applicative and more. Today we will try to explore one of these pillars called Functors. First let’s explore function composition: Function Composition: In this diagram, we have 3 sets called A, B, and C. Set A contains an element called x. Suppose, we need to convert our Set A elements into Set C. But we have no Continue Reading
Reading Time: 4 minutes In our previous blog The Story of Trait – Part 3, we have discussed the mixin, one of the charming feature of traits. Now we are going to explore chaining of traits. We have seen how can we mix more than one traits into classes. But what would happen if two traits have same method i.e same name and same signature? This is where Multiple Inheritance Continue Reading
Reading Time: 5 minutes In this blog, we will explore types of variances in Scala. In-variance Co-variance Contra-variance First, let’s talk about Types in Scala. scala> import java.util.ArrayList scala> var ref1: Any = “Hi” ref1: Any = Hi scala> var ref2: String = “Hi” ref2: String = Hi scala> ref1 = ref2 ref1: Any = Hi In the above example, ref1 is of type Any and ref2 is of Continue Reading
Reading Time: 3 minutes On March 20, 2018, Java 10 was released and everybody wants to explore Java 10 but not everyone wants to change their development environment. So in this blog, we will be discussing how can we use Java 10 using Docker.
Reading Time: 4 minutes A Scala trait is just like a Java interface. A trait can be extended by different classes, just the way we do with Java interfaces and also a class can inherit multiple traits, called mixins. To know more about basics of the trait, refer to this blog. But what if we want to restrict mixing of traits to a limited number of classes? Do we have Continue Reading
Reading Time: 5 minutes In the first blog of the Scala Type System series, I had put a lot of emphasis on the fact that “Type variables make a very powerful piece of type-level programming”. They appear in a variety of forms and variations. One of the important forms is “existential types”. In today’s blog, I would like to get you familiar with the existential types. Given below is a Continue Reading
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