Check Palindrome String in Java

1import java.util.Scanner;
2
3public class Main {
4    public static void main(String[] args) {
5        Scanner sc = new Scanner(System.in);
6        System.out.print("Enter a string: ");
7        String s = sc.nextLine();
8
9        String clean = s.replaceAll("\\s+", "").toLowerCase();
10        String rev = new StringBuilder(clean).reverse().toString();
11
12        if (clean.equals(rev)) {
13            System.out.println("Palindrome");
14        } else {
15            System.out.println("Not Palindrome");
16        }
17        sc.close();
18    }
19}