how to read from stdin rust

To read from stdin in Rust, you can use the std::io module. Here's an example code snippet that demonstrates how to read input from stdin:

use std::io;

fn main() {
    let mut input = String::new();
    io::stdin().read_line(&mut input)
        .expect("Failed to read line");

    println!("You entered: {}", input);
}

In this code, we first import the std::io module. Then, we create a mutable String variable called input to store the input we read from stdin.

Next, we use the read_line method from io::stdin() to read a line of input from stdin. We pass a mutable reference to the input variable to store the input we read.

If the read operation is successful, the input will be stored in the input variable. Otherwise, an error message will be displayed using the expect method.

Finally, we print out the input using the println! macro.

You can run this code and test it by entering some input in the console. The program will read the input and display it back to you.