First Rust Program
First Rust program
Now let us write a simple Rust program. Now, launch Notepad, and enter the following code in it:
fn main()
println!("Hello, world!");
Output:
Hello, world!
main(): The first line of code in any Rust executable is always the main() function. Curly braces{} encapsulate the main() function. The function main() does not return any value and does not take any parameters.
println!: It’s a macro in Rust. It doesn’t contain ‘!’ if it calls the method.
“Hello World” : The string is sent to println! as an argument, and the result is printed to the console.
Procedure to create, compile and run the program
1. Open the notepad document and enter the code there.
2. Save the file using the.rs suffix.
3. Launch the Command Prompt.
4. Configure the directory’s path. Assume D Drive is where the project is situated.
5. Use the rustc command to compile the aforementioned program.
6. Lastly, use the command filename.exe to launch the software.
