Min, Max, Sum and Average of N Numbers

/* Write a program that reads from the console a sequence of n integer numbers
 * and returns the minimal, the maximal number, the sum and the average
 * of all numbers (displayed with 2 digits after the decimal point).
 * The input starts by the number n (alone in a line)
 * followed by n lines, each holding an integer number. */

import java.util.Locale;
import java.util.Scanner;

public class _03_MinMaxSumAndAverageOfN_Numbers {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Locale.setDefault(Locale.ROOT);
        Scanner scanner = new Scanner(System.in);
        System.out.print("Enter a whole positive number for Count of numbers in Sequence: ");
        int count = scanner.nextInt();

        if (count > 0) {
            int minNum = Integer.MAX_VALUE;
            int maxNum = Integer.MIN_VALUE;
            long sumNums = 0;
            for (int i = 0; i < count; i++) {
                System.out.print("Enter next Integer number of Sequence: ");
                int number = scanner.nextInt();
                sumNums += number;
                if (number < minNum) {
                    minNum = number;
                }

                if (number > maxNum) {
                    maxNum = number;
                }
            }

            scanner.close();
            System.out.printf("min = %d\nmax = %d\nsum = %d\n", minNum, maxNum, sumNums);
            System.out.printf("avg = %.2f\n", (sumNums / (double) count));
        } else {
            scanner.close();
            System.out.println("Error! - Invalid Input number!!!");
        }
    }

}