Extract Emails [Mimi]

import java.util.Scanner;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class _08_ExtractEmails {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();

        String reg = "(^| )[A-Za-z][\\w-.]*@[]A-Za-z-]+(\\.[A-Za-z]+)+";

        Pattern p = Pattern.compile(reg);
        Matcher m = p.matcher(input);

        while (m.find()) {
            System.out.println(m.group().trim());
        }
    }
}