Perfect Square Check 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 number: ");
7        int n = sc.nextInt();
8
9        boolean isPerfect = false;
10        for (int i = 1; i * i <= n; i++) {
11            if (i * i == n) {
12                isPerfect = true;
13                break;
14            }
15        }
16
17        if (isPerfect) {
18            System.out.println(n + " is a Perfect Square");
19        } else {
20            System.out.println(n + " is not a Perfect Square");
21        }
22        sc.close();
23    }
24}