android 对象拷贝克隆模式

private void t() {
        Card card = new Card();
        card.setNum(19);
        card.setNmae("jason");
        Log.i(TAG, "t: "+card.toString());
        try {
            Card clone = card.clone();
            Log.i(TAG, "t: "+clone.toString());
            clone.setNum(20);
            clone.setNmae("jace");
            Log.i(TAG, "t: "+clone.toString());
        } catch (CloneNotSupportedException e) {
            e.printStackTrace();
        }
    }

    public class Card implements Cloneable{

        int num;
        CardName cardName=new CardName();

        public Card() {
            Log.i(TAG, "Card: 构造函数");
        }

        public void setNum(int num) {
            this.num = num;
        }

        public void setNmae(String nmae){
            cardName.setName(nmae);
        }

        @Override
        public String toString() {
            return "Card{" +
                    "num=" + num +
                    ", cardName=" + cardName +
                    '}';
        }

        @Override
        protected Card clone() throws CloneNotSupportedException {
            Log.i(TAG, "clone: 不执行构造函数");
            return (Card) super.clone();
        }
    }

    public class CardName{
        public String name;

        public String getName() {
            return name;
        }

        public void setName(String name) {
            this.name = name;
        }

        @Override
        public String toString() {
            return "CardName{" +
                    "name='" + name + '\'' +
                    '}';
        }
    }