Calculate the average of a number of grades

Average.java

import java.util.Scanner;


public class Average {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Scanner input = new Scanner(System.in);
		
		System.out.println("Brad's grade averager!!");
		System.out.println("========================================");
		
		System.out.println("Enter the number of grades to average: ");
		int numGrades = input.nextInt();
		
		// create array to hold grades
		int[] grades = new int[numGrades];
		
		// Fill the array from the console
		for (int i = 0; i < numGrades; i++) {
			System.out.println("Enter grade " + (i+1) + ": ");
			grades[i] = input.nextInt();
		}
		
		// Calculate average
		int sum = 0, average;
		for (int i = 0; i < numGrades; i++) {
			sum += grades[i];
		}
		average = sum / numGrades;
		
		System.out.println("Your average is: " + average);
		
		input.close();
	}

}