Write a program requesting a number (n), then ask n numbers more and print their product (use "for"!). The requested "n" number must be integer and positive. (The multiplied numbers must not be positive!)

The result should be like these:

Sample 1.)

Product calculator.
Enter a number: 4
1. number: 1
2. number: 2
3. number: 5
4. number: 2
Product of entered numbers is 20

Sample 2.)

Product calculator.
Enter a number: -10
'n' value must be positive.

My program:
 

        Scanner sc = new Scanner(System.in);
        int n;
        int enter;

        System.out.println("Product calculator.\n" + "Enter a number");
        n = sc.nextInt();

        if (n <= 0) {
            System.out.print("'n' value must be positive");
        } else {
            for (int i = 1; i <= n; i++) {

                System.out.print(i + ". number: " + " ");
                enter= sc.nextInt();
            }
            System.out.print("Product of numbers is ");
        }

    }

}

Please help me to correct and finalize this program.

Thank you very much in advance.

Cheers,

Benjamin