Kotlin Hello World Program

Kotlin is a modern programming language developed by JetBrains. In this article, we will explore how to write a Hello World program in Kotlin. Let’s start!!!

Writing the Hello World Program in Kotlin:

Let’s dive into the process of creating and executing a Hello World program in Kotlin.

Step 1: Set Up the Development Environment

Make sure you have Kotlin installed on your machine. You can obtain the Kotlin compiler from the official Kotlin website or utilize Kotlin plugins available in popular Integrated Development Environments (IDEs) such as IntelliJ IDEA or Android Studio.

Step 2: Create a New Kotlin File:

Launch your preferred IDE like Vs code and create a new Kotlin file. Give it a meaningful name, such as “HelloWorld.kt”.

Step 3: Write the Hello World Program:

Within the newly created file, add the following code.

fun main(args : Array<String>) {
    println("Hello, World! Welcome To DataFlair Kotlin Tutorial")
}

Output 
Hello, World! Welcome To DataFlair Kotlin Tutorial

In this code, the main() function serves as the entry point of the program. Using the println() function, we display the “Hello, World! Welcome To DataFlair Kotlin Tutorial” message on the console.

In this code, we have a Hello World program in Kotlin. Let’s understand each component briefly:

a. fun main(args : Array<String>):

This line declares the main function, which serves as the entry point of the program. In Kotlin, the main function is where the program execution begins. It takes an array of strings (args) as a parameter, which can be used to pass command-line arguments.

b. println(“Hello, World! Welcome To DataFlair Kotlin Tutorial”)

This line uses the println() function to print the message “Hello, World! Welcome To DataFlair Kotlin Tutorial” to the console. The println() function is a built-in Kotlin function used to display text with a newline character at the end. In this case, it displays the “Hello, World! Welcome To DataFlair Kotlin Tutorial” message.

Step 4: Run the Program

Compile and run the program using the Kotlin compiler or the IDE’s built-in features. You should observe the output “Hello, World! Welcome To DataFlair Kotlin Tutorial” printed in the console.

Conclusion

In this article, we explored the process of creating a Hello World program in Kotlin. With Kotlin’s simplicity and expressive nature, you are now equipped to embark on your programming journey confidently.