JAVA对象clone方法代码实例解析

package pojo;

/**
 * @Author : ZGQ
 * @Date : 2020/3/11 22:12
 * @Version : 1.0
 */
public class Person implements Cloneable{
  String name;
  int age;

  public Person(String name, int age) {
    this.name = name;
    this.age = age;
  }

  @Override
  protected Object clone() throws CloneNotSupportedException {
    System.out.println(super.clone().getClass());
    Person p = (Person) super.clone();
    p.name=this.name;
    p.age=this.age;
    return p;
  }
}

package pojo;

/**
 * @Author : ZGQ
 * @Date : 2020/3/11 22:21
 * @Version : 1.0
 */
public class Girl extends Person {
  char cup;

  public Girl(String name, int age, char cup) {
    super(name, age);
    this.cup = cup;
  }

  @Override
  public Object clone() throws CloneNotSupportedException {
    System.out.println(super.clone().getClass());
    Girl girl = (Girl) super.clone();

    girl.cup=this.cup;
    return girl;
  }

  @Override
  public String toString() {
    return "Girl{" +
        "cup=" + cup +
        ", name='" + name + '\'' +
        ", age=" + age +
        '}';
  }
}