Hello World Program in Rust

Let’s start with the world’s simplest program “Hello World! in Rust”. Since it’s a very easy program, it’s often used to learn a new programming language quickly.

Let’s see how we can run Hello World! program in Rust.

Rust “Hello, World!” Program

fn main() {
    println!("Hello, World!");
}

Output

we have successfully printed the text Hello, World! on the screen.

Hello, World!

BTS of “Hello, World!” Program in Rust

Here are the different things in the below programs

1. main() function

fn main() {
  // Code
}

main() function is the entry point of every program in Rust. It is always the first code that runs every Rust program.

The body is wrapped with {} brackets. We will learn more about this in upcoming articles.

2. Print statement

println!("Hello, World!");

In this program we used println! for print text in Rust. Basically, println! is macro for printing any text in Rust. In this program Hello World! is an argument of println!(), Also we have to specify ; At the end of the line which indicates the program is complete.

We will learn more about macros in upcoming articles.