Average Using ArrayList

import java.util.*;

public class ArrayListForAverage {

public static void main(String[] args)
{

double average;
int total=0;


ArrayList<Integer> al=new ArrayList<Integer>();
al.add(56);
al.add(75);
al.add(83);
al.add(82);
al.add(82);
for(int i=0; i<al.size(); i++)
{
total+=al.get(i);
}
average=total/al.size();
System.out.println("average is =" +average );

ArrayList<Integer> al1=new ArrayList<Integer>();
for(int i=0;i<=10; i++)
{
al1.add(i);
System.out.println(i);
}
System.out.println("size of array is = "+al1.size());

}

}