// ArrayIntList can be used to store a list of integers.
public class ArrayIntList {
    int[] elementData;  // list of integers
    int size;           // current number of elements in the list

    // Constructs an empty list
    public ArrayIntList() {
        elementData = new int[10];
        size = 0;
    }

    // appends the given value to the end of the list
    public void add(int value) {
        elementData[size] = value;
        size++;
    }
}