Kotlin is the latest JVM programming language from the JetBrains. Google has made it the official language for Android Development along with Java. Developers say it addresses the issues faced in Java programming. I have written a lot of Kotlin tutorials and here I am providing important kotlin interview questions. Kotlin Interview Questions Here I […]
Kotlin Coroutines
In this tutorial, we’ll be looking into Kotlin Coroutines. Coroutines is a vital concept since asynchronous programming is the way to go over the traditional blocking a thread and polling stuff. Kotlin Coroutines Concurrency is vital in programming. Running different tasks on different threads. But sometimes, we as developers can get carried away and create […]
Kotlin Generics
In this tutorial, we’ll be looking in Kotlin Generics and Variances. Generics Generics are a powerful feature that allows us to define a common class/method/property that can be operated using different types while keeping a check of the compile-time type safety. They are commonly used in Collections. A generic type is a class or interface […]
Kotlin Exception Handling
In this tutorial, we’ll be discussing Exception Handling in Kotlin. What are Exceptions? Exceptions are something that can break your program. That makes Exception Handling an essential part of any Programming Language. Using Exception handling you can handle errors and prevent runtime crashes that can stop your program. Instead, using Exception Handling you can handle […]
Kotlin Visibility Modifiers – public, protected, internal, private
In this tutorial, we’ll be discussing the various Visibility Modifiers available in Kotlin programming. Kotlin Visibility Modifiers Visibility Modifiers are modifiers that when appended to a class/interface/property/function in Kotlin, would define where all it is visible and from where all it can be accessed. The setters of properties in Kotlin can have a separate modifier […]
Kotlin Inline Function, Reified Parameters
In this tutorial, we’ll be looking into Kotlin inline function. We’ll follow that with Reified Type Parameters. Kotlin inline functions We’ve discussed Kotlin Higher Order Functions and Lambda Expressions before. They’re super useful in passing functions as parameters. But these functions are objects which have there own callbacks and subsequently memory allocations. Let’s understand how […]
Kotlin print(), println(), readLine(), Scanner, REPL
Today we will learn how to use Kotlin print functions and how to get and parse user input from console. Furthermore, we’ll look into Kotlin REPL. Kotlin Print Functions To output something on the screen the following two methods are used: print() println() The print statement prints everything inside it onto the screen. The println […]
Kotlin Inheritance
Continuing with our series of Kotlin tutorials, today we’ll look into inheritance in Kotlin Classes. Let’s get started by creating a new IntelliJ IDEA Kotlin project. Kotlin Inheritance Inheritance is the concept of creating class hierarchies wherein we override properties and functions of the base class in its subclasses as per our needs. All classes […]
Kotlin Type Checking, Kotlin Type Casting
Today we will look into Kotlin type checking and smart type casting. We will use Kotlin Online playground for code snippets. Kotlin Type Checking Type Checking is the way to check the type of a data at runtime. In Java, we have the instanceof keyword to check the type. Kotlin uses is and !is keywords […]
Kotlin Interface
In this tutorial, we’ll be looking into interfaces in Kotlin. Kotlin interface is like contracts that can be used by classes for specific behaviors. Kotlin Interface Interfaces in Kotlin contain the definitions of functions and properties that are abstract. Interfaces can have the implementation of the functions. Also, interfaces can have non-abstract properties by defining […]