java program to sum all array elements and then find the average of their sum

class loopavg
{
public static void main(String args[])
{
//deine an array
int[] a = new int[]{10,20,30,40,50};
//calculate sum of all array elements
int sum = 0;
for(int i=0;i<a.length;i++)

sum=sum+a[i];
double avg = sum /a.length;
System.out.println(" Average value of array elements is : " + avg);
}
}