黑马人工智能极速就业班

public class ArrayList<E> extends AbstractList<E> implements List<E>, RandomAccess, Cloneable, java.io.Serializable {    // new ArrayList() 默认初始容量    private static final int DEFAULT_CAPACITY = 10;    // new ArrayList(0) 的全局空数组    private static final Object[] EMPTY_ELEMENTDATA = {};