属性不可以重载

在java 属性没有重载概念。可能 一听感觉很正确。可是实际开发。你认识这点吗。

下面到例子 是我拷贝到 。你看看。猜猜结果。

public class Main {

    public static void main(String[] args) {

        Person person = new Student();

        System.out.println("Name: "+person.getName()); // --> Guess

        person.setName("set outside");

        System.out.println("After Name: "+person.getName()); // --> Guess

        Student student = (Student)person;

        System.out.println("After cast, Name: "+student.getName()); // --> Guess

    }

}

class Person {

    private String name = "Person name";    //  --> (A)

    public void setName(String name) {

        this.name = name+"_ in superClass";

    }

    public String getName() {

        return this.name;

    }

}

class Student extends Person{

    private String name = "Student name";    // --> (B)

    public void setName(String name) {

        this.name = name + "_ in subClass";

    }

    /*

    public String getName() {  --> (C)

        return this.name;

    }

    */

}