java 继承中的访问特点已经方法的重构

package net.elaina.a01oopextensdemo2;

public class Test {
    public static void main(String[] args) {
        //利用空参构造创建子类对象
        Zi z1 = new Zi();
        z1.ziShow();
    }
}

class Fu {
    String name = "Fu";
}

class Zi extends Fu {
    String name = "Zi";

    public void ziShow() {
        String name = "ziShow";
        System.out.println(name); //ziShow
        System.out.println(this.name); //Zi
        System.out.println(super.name); // Fu
    }
}

package net.elaina.a01oopextensdemo3;

public class Test {
    public static void main(String[] args) {
        OverseasStudent s1 = new OverseasStudent();
        s1.lunch();
    }
}

class Person {
    public void eat() {
        System.out.println("吃米饭，吃菜");
    }

    public void drink() {
        System.out.println("喝开水");
    }
}

//留学生
class OverseasStudent extends Person {
    public void lunch() {
        this.eat(); //吃意大利面
        this.drink(); //喝凉水
        super.eat(); //吃米饭，吃菜
        super.drink(); //喝开水
    }

    public void eat() {
        System.out.println("吃意大利面");
    }

    public void drink() {
        System.out.println("喝凉水");
    }
}

class Student extends Person {

    public void lunch() {
        //先在本类中查看eat和drink方法，就会调用子类的，如果没有，就会调用从父类中继承下来的eat和drink方法
        this.eat(); //吃米饭，吃菜
        this.drink(); //喝开水
        //直接调用父类中的eat和drink方法
        super.eat(); //吃米饭，吃菜
        super.drink(); //喝开水
    }
}

public class SharPei extends Dog{
    @Override
    public void eat() {
        super.eat(); // 继承父类的功能
        System.out.println("狗啃骨头");
    }
}

构造方法的访问特点