find average of numbers in array java

1public class JavaExample {
2
3    public static void main(String[] args) {
4        double[] arr = {19, 12.89, 16.5, 200, 13.7};
5        double total = 0;
6
7        for(int i=0; i<arr.length; i++){
8        	total = total + arr[i];
9        }
10
11
12        /* arr.length returns the number of elements 
13         * present in the array
14         */
15        double average = total / arr.length;
16        
17        /* This is used for displaying the formatted output
18         * if you give %.4f then the output would have 4 digits
19         * after decimal point.
20         */
21        System.out.format("The average is: %.3f", average);
22    }
23}