import java.util.ArrayList;
import java.util.LinkedList;
import java.util.List;

public class Demo3 {
    public static void main(String[] args) {
    	ArrayList<Integer> nums1 = new ArrayList<Integer>();
    	fillUp(nums1, 10);
    	System.out.println(getSum(nums1));
    	
    	LinkedList<Integer> nums2 = new LinkedList<Integer>();
    	fillUp(nums2, 10);
    	System.out.println(getSum(nums2));    	
    }
    
    public static void fillUp(List<Integer> nums, int size) {
    	for (int i = 0; i < size; i++) {
    		nums.add((int)(Math.random()*100));
    	}    	
    }
    
    public static int getSum(List<Integer> nums) {
    	int sum = 0;
    	for (Integer n : nums) {
    		sum += n;
    	}
    	return sum;
    }
}