AP计算机教程7-9：困难多选题

What is in the list nums if it initially contained [5, 3, 1] and the following code is executed?

nums.add(6);
nums.add(0,4);
nums.remove(1);

Assume that nums has been created as an ArrayList object and initially contains the following Integer values: [0, 0, 4, 2, 5, 0, 3, 0]. What will nums contain as a result of executing the following method numQuest?

private List<Integer> nums;

//precondition: nums.size() > 0
//nums contains Integer objects
public void numQuest() {
   int k = 0;
   Integer zero = new Integer(0);
   while (k < nums.size()) {
      if (nums.get(k).equals(zero))
         nums.remove(k);
      k++;
   }
}