Extract File [Mmi]

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

public class _03_ExtractFile {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        String input = scanner.nextLine();

        String regName = "(?<=\\\\)\\b[\\w.-]+\\b(?=\\.)";
        String regExt = "(?<=\\.)\\b[a-z]+\\b(?!.)";

        Pattern p1 = Pattern.compile(regName);
        Matcher m1 = p1.matcher(input);

        String name = "";
        if(m1.find()){
            name = m1.group();
        }

        Pattern p2 = Pattern.compile(regExt);
        Matcher m2 = p2.matcher(input);

        String ext = "";
        if(m2.find()){
            ext = m2.group();
        }

        System.out.println("File name: " + name);
        System.out.println("File extension: " + ext);
    }
}