import java.util.regex.*;
 
public class ValidateEmail {
 
    public static void main(String[] args)
    {
        String email = "hello_World@geeksforgeeks.org";
        String regex
            = "^[a-zA-Z0-9_.+-]+@[a-zA-Z0-9-]+\\.[a-zA-Z]{2,6}$";
 
        Pattern pattern = Pattern.compile(regex);
        Matcher matcher = pattern.matcher(email);
 
        boolean isEmailValid = matcher.matches();
 
        if (isEmailValid) {
            System.out.println("Email is valid");
        }
        else {
            System.out.println("Email is invalid");
        }
    }
}