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alihoseiny / RustUserInputNumber.rs
Created July 30, 2019 15:55
Simple Example of getting an integer from Command line in the Rust
use std::io;
fn main() {
// Short version without Error handling. If input is not a valid number, program will
// exit with error in runtime.
let mut user_input_string = String::new();
io::stdin().read_line(&mut user_input_string).unwrap();
let user_input_number = user_input_string.trim().parse::<i32>().unwrap(); // Trims The input for removing white spaces and then parses it as a `i32` number.
println!("User number is: {}", user_input_number);