public class Person {

}

public class Student extends Person{

    private String name;

    public Student(String name) {

        this.name = name;

    }

    public Student() {

    }

    public String getName() {

        return name;

    }

    public void setName(String name) {

        this.name = name;

    }

    @Override

    public String toString() {

        return "Student{" +

                "name='" + name + '\'' +

                '}';

    }

}

public class Test01 {

    public static void main(String[] args) {

        //java中子类数组的引用可以转换为超类数组的引用，而不需要采用强制类型转换。

        Student[] student = new Student[5];

        //但是student和objs引用的是同一个对象

        Person[] person = student;

        //如果试图存储一个Person类型的引用就会引发ArrayStoreException异常

        person[0] = new Person();

    }

}