方法作为参数传递（手机）

 

package fangfa;

public class Phone {
    private String brand;
    private int price;

    public Phone() {
    }

    public Phone(String brand, int price) {
        this.brand = brand;
        this.price = price;
    }

    public String getBrand() {
        return brand;
    }

    public void setBrand(String brand) {
        this.brand = brand;
    }

    public int getPrice() {
        return price;
    }

    public void setPrice(int price) {
        this.price = price;
    }
    public void call(String name){
        System.out.println("给"+name+"打电话");
    }
    public void sendMessage(){
        System.out.println("发短信");
    }
}

package fangfa;

public class teacher {
    public void usePhone(Phone p){
        p.sendMessage();
        p.call("郝梓亦");
        System.out.println(p.getBrand()+"---"+p.getPrice());
    }
}

package fangfa;

public class TestTeacher {
    public static void main(String[] args) {
        teacher t=new teacher();
        Phone p=new Phone("小米",1999);
        t.usePhone(p);
    }
}