How to interact with Java Scanner Class (Atom editor) : I am super newb with Java and I am trying simple codes with Atom editor (osx). 
Please, someone can help me to understand how can I interact with code with Atom?
  
I use Script package (Atom) to run the code (cmd+i).

For example if I use the Scanner class:

    import java.util.Scanner;
    public class Les {

    public static void main(String[] args) {
      
      String s;
      Scanner in = new Scanner(System.in);
      System.out.println("Enter a string");
      s = in.nextLine();
      System.out.println("You entered string " + s);
      }
    }


the output will be "enter a string"

Where I can insert the Strings?

Thank you 
