面向对象学生类和手机类的使用

 

1.学生类的使用:

class hello2 {
    public static void main(string[] args) {
        student s = new student();
        s.name = "王哥";
        s.age = 25;
        s.gender = "男";
        system.out.println(s.name + "..." + s.age + "..." + s.gender);
        s.study();
        s.sleep();  
    }
}
class student {
    string name;
    int age;
    string gender;

    public void study() {
        system.out.println("学生学习");
    }
    

    public void sleep() {
        system.out.println("学生睡觉");
    }

}

结果:

2.手机类的使用:

class hello2 {
    public static void main(string[] args) {
         phone s = new phone();
         s.brand = "华为";
         s.price = 2000;
         system.out.println(s.brand + "..." + s.price);
         s.call();
         s.sendmessage();
         s.playgame();
    }


}
class phone {
    string brand;
    int price;

    public void call() {
        system.out.println("打电话");
    }
    

    public void sendmessage() {
        system.out.println("发信息");
    }
    public void playgame() {
        system.out.println("玩游戏");
    }
}

结果: