API_project/Object_Objects_module/src/Object_package/Object_demo3.java

package Object_package;

public class Object_demo3 {
    public static void main(String[] args) throws CloneNotSupportedException {
        //protected Object clone(int a)       对象克隆

        //1、先创建一个对象
        int[] data = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 0};
        User u1 = new User(1, "张三", "1234qwer", "girl111", data);

        //2、克隆对象
        //细节：
        //方法在底层会帮我们创建一个对象，并把原对象中的数据拷贝过去
        //书写细节：
        //1、重写Object中的clone方法
        //2、让javabean类实现Cloneable接口
        //3、创建原对象并调用clone方法就可以了
        User u2 = (User) u1.clone();

        //验证一件事情：Object中的克隆是浅克隆
        int[] arr = u1.getData();
        arr[0] = 100;
        System.out.println(u1);
        System.out.println(u2);

    }
}