Want to learn Kotlin? Our guide covers everything from the basics to advanced topics. Whether you're just starting or have programming experience, we've got you covered. Kotlin is a popular language for building Android apps. This Kotlin programming language tutorial includes lessons on its features like classes, objects, inheritance, and more.
Kotlin is a versatile programming language used on different devices and systems. It can turn into code for computers that run Java, websites, and even standalone programs. Kotlin also makes it easy to use code from different platforms together, which helps build complex projects. In addition, you will learn Kotlin for Android in detail in this Kotlin programming language guide.
Kotlin was created by looking at other languages like Java, Scala, C#, and Groovy. The primary goal of Kotlin is to be practical and helpful for everyday programming. In other words, it has features and tools that make it easy to get things done. The designers of Kotlin make decisions based on what will be most useful for people who use it.
Kotlin is designed to prevent errors caused by missing values (called 'null'). It can tell the difference between values that can be empty and those that always have something in them. As a result, this helps keep your code from crashing. Kotlin also has features that make it easier to work with other programming languages and write code more efficiently.
After understanding the programming language of Kotlin, we will move ahead towards the history under this Kotlin basics tutorial.
The name 'Kotlin' comes from an island in Russia. The people who created Kotlin decided to name it after an island, just like the programming language 'Java' was named after an island. In addition, they wanted to give the language a unique and memorable name. In 2011, a company called JetBrains started working on a new programming language called Kotlin. They wanted a language that was better than the others they had tried but without the slow speed of another language called Scala. Kotlin programming language was designed to be as fast as Java and was made available to everyone in 2012.
JetBrains hoped that Kotlin would help them sell their software. They started working on Kotlin in 2010 and released the first stable version in 2016. In 2017, Google announced that it would support Kotlin for building Android apps. Later that year, Kotlin added a feature that lets you use the same code for both computers and websites.
Here, we will use the Hello World Code to discuss the syntax that will assist in developing Android apps with Kotlin.
fun main() {
println("Hello World")
}
In Kotlin, you use the word 'fun' to start a function. A function is like a mini-program that does a specific job. The 'main' function is special because it's the first thing your program does. Any code inside the curly brackets of 'main' will be run. For example, the 'println' function is inside 'main' and it prints text to the screen. In this case, it prints 'Hello World.'
Before Kotlin version 1.3, you had to include 'args' in the 'main' function. However, this 'args' was used for special information that the program might need.
Kotlin offers a modern, efficient, and safe programming language that combines the best aspects of Java while addressing its shortcomings. However, we will discuss some of its uses in this Kotlin tutorial for beginners.
Kotlin boasts a range of features that make it a compelling choice for developers. Let's explore some of the key benefits of this Kotlin beginner tutorial:
Under this Kotlin basics tutorial, we will elaborate on several examples.
1.
/* Java Code */
class Book {
private String title;
private Author author;
public String getTitle()
{
return title;
}
public void setTitle(String title)
{
this.title = title;
}
public Author getAuthor()
{
return author;
}
public void setAuthor(Author author)
{
this.author = author;
}
}
2.
un myFun(company: String,product: String, fn: (String,String) -> String): Unit {
val result = fn(company,product)
println(result)
}
fun main(args: Array){
val fn:(String,String)->String={org,portal->"$org develops $portal"}
myFun("JetBrains","Kotlin",fn)
}
3.
fun main(args: Array){
var string: String? = "BYE"
if(string != null) { // smart cast
print(string.length)
}
}
Kotlin programming language is a great language for building software. In addition, it's easy to use and works well with other languages like Java. Kotlin is perfect for making apps for Android phones and other devices. Moreover, it can help you write code faster and make better programs. No matter if you're a beginner or an expert, Kotlin can help you write better code faster.
Ans. Kotlin language will be beneficial for Android developers. Whether you choose Kotlin or Java depends on what you need for your project and what you like to use. Both languages are popular and have their strengths. You can use either one for many different kinds of projects.
Ans. Kotlin is a great language for building both the frontend and backend parts of websites. It's easy to use, and it has features that make it perfect for creating strong and reliable server-side applications.
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