java风扇功能设计

迈不过友情╰ 2022-01-17 15:03 194阅读 0赞

风扇开关，转速，半径，颜色

public class TestFan //测试类
    {
        public static void main(String[] args) 
        {
            Fan f1=new Fan();//调用class Fan
            Fan f2=new Fan();
            f1.setOn();
            f1.setSpeed(Fan.FAST);
            f1.setRadius(10);
            f1.setColor("yellow");
            f2.setSpeed(Fan.MEDIUM);
            System.out.print("f1风扇  "+f1);
            System.out.print("f2风扇  "+f2);
        }
    }
    class Fan//功能类
    {
        public static final int SLOW=1;//final相当于c语言中的const，不可更改
        public static final int MEDIUM=2;
        public static final int FAST=3;
        private int speed=SLOW;
        private boolean on=false;
        private double radius=5;
        private String color="blue";
        public Fan()
        {
        }
        public boolean getOn()
        {
            return on;
        }
        public void setOn()
        {
            on=!on;
        }
        public int getSpeed()
        {
            return speed;
        }
        public void setSpeed(int x)
        {
            if(on&&SLOW<=x&&x<=FAST)
                speed=x;
        }
        public double getRadius()
        {
            return radius;
        }
        public void setRadius(double x)
        {
            if(x>0)
                radius=x;
        }
        public String getColor()
        {
            return color;
        }
        public void setColor(String x)
        {
            color=x;
        }
        public String toString()
        {
            if(on)
                return "Speed:"+speed+"  Color:"+color+"  Radius:"+radius;
            else
            {
                System.out.printf("\n");
                return "fan is off"+"  Color:"+color+"  Radius:"+radius;
            }
        }
    }

转载于:https://blog.51cto.com/14233078/2386885