Square Of Stars22

import java.util.Scanner;

public class SquareOfStars {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        int n = Integer.parseInt(scan.nextLine());

        String stars = new String(new char[n]).replace( "\0", "*");

        System.out.println(stars);
        for (int i=0; i < n - 2; i++) {
            System.out.printf("*");
            System.out.printf(new String(new char[n - 2]).replace( "\0",  " " ));
            System.out.println("*");
        }
        System.out.println(stars);
    }
}