java-Java編程謝謝大家，急用！！！！！！！！！

Java編程謝謝大家，急用！！！！！！！！！

javastringboolean
模擬實現電風扇，可以調 3 檔速度（慢速、中速、快速）；開關按鈕；定時吹風；描述
風扇的扇葉大小、顏色等。
設計Fan 類，屬性包括：3 個常量 SLOW （1）、MEDIUM（2）、FA ST（3）代表風扇的
速度；1 個int 屬性speed 指定速度，默認值為 SLOW ；1 個boolean屬性 on 指定開關機，默
認值false ；1 個double 屬性 radius 指定風扇扇葉大小；1 個String 屬性 color指定扇葉顏色，
默認值為 blue 。方法包括這些屬性的訪問器、構造函數、重寫 Object 類的 toString() 和equals()

最佳回答：

 public class Fan {

    public Fan() {}

    public static final int SLOW = 1;

    public static final int MEDIUM = 2;

    public static final int FA = 3;

    public int speed = SLOW;

    public boolean on = false;

    public double radius = 0.0d;

    public String color = "blue";

    public int getSpeed() {
        return speed;
    }

    public void setSpeed(int speed) {
        this.speed = speed;
    }

    public boolean isOn() {
        return on;
    }

    public void setOn(boolean on) {
        this.on = on;
    }

    public double getRadius() {
        return radius;
    }

    public void setRadius(double radius) {
        this.radius = radius;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((color == null) ? 0 : color.hashCode());
        result = prime * result + (on ? 1231 : 1237);
        long temp;
        temp = Double.doubleToLongBits(radius);
        result = prime * result + (int) (temp ^ (temp >>> 32));
        result = prime * result + speed;
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        Fan other = (Fan) obj;
        if (color == null) {
            if (other.color != null)
                return false;
        } else if (!color.equals(other.color))
            return false;
        if (on != other.on)
            return false;
        if (Double.doubleToLongBits(radius) != Double
                .doubleToLongBits(other.radius))
            return false;
        if (speed != other.speed)
            return false;
        return true;
    }

    @Override
    public String toString() {
        return "Fan [speed=" + speed + ", on=" + on + ", radius=" + radius
                + ", color=" + color + "]";
    }
}