Printing Strings

We can use println! to print texts on the screen. For example:

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

This prints Hello on the screen.

Hello

The text put in quotes "" is called a string. println! helps us to print strings on the screen.

In addition, we can use {} to indicate a string that will be specified later. For example:

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

In the code, we tell the compiler that we need to print something, and this something is Hello. The output is the same.

Hello

The symbol {} is useful especially when we have more than one text.

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

This outputs:

Hello world

We can format a printed text in the following way.

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

Output:

Hello, world!

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