import java.util.ArrayList;
class ArrayListToArray {
public static void main(String args[]) {
ArrayList al = new ArrayList();
al.add(1);
al.add(2);
al.add(3);
al.add(4);
System.out.println("Contents of al: " + al);
Integer ia[] = new Integer[al.size()];
ia = al.toArray(ia);
int sum = 0;
for (int i : ia)
sum += i;
System.out.println("Sum is: " + sum);
}
}