课后习题1

package com.ju;

public class power {
    
    //颜色
    private String yanse;
    
    //品牌
    private String pinpai;
    
    //电池容量
    private double mah;
    
    //当前容量
    private double dqmah;
    
    //充电
    public void chongdian(double dianliang)
    {
        if (dianliang < 0)
        {
            System.out.println("请及时充电");
        }
        else if (this.dqmah + dianliang > this.mah)
        {
            double bccd = this.mah-this.dqmah;
            
            this.dqmah = this.mah;
            
            System.out.println("已充满，请关闭充电电源" +bccd+"毫安");
        }
        else
        {
            this.dqmah += dianliang;
            System.out.println("这次充了"+dianliang+"毫安");
        }
    }
    private double xiaohao = 0;
    
    private double xiaohaozl()
    {
        return this.xiaohaozl();
    }
    
    //使用 消耗电量
    public void xiaohaodl(double xiaohaozl,double xiaohao)
    {
    
        if(this.dqmah <=0)
        {
            System.out.println("电量低，请充电后使用");    
            
            return;
        }
        if (xiaohaozl<0 || xiaohao<0)
        {
            System.out.println("无法使用");
        }
        if (this.dqmah < 0 )
        {
            this.dqmah = 0;
            
            System.out.println("请充电！");
        }
    }
    
    public String getYanse() {
        return yanse;
    }

    public void setYanse(String yanse) {
        this.yanse = yanse;
    }

    public String getPinpai() {
        return pinpai;
    }

    public void setPinpai(String pinpai) {
        this.pinpai = pinpai;
    }

    public double getMah() {
        return mah;
    }

    public void setMah(double mah) {
        this.mah = mah;
    }

    public double getDqmah() {
        return dqmah;
    }

    public void setDqmah(double dqmah) {
        this.dqmah = dqmah;
    }

    public power(String pinpai, double mah, double dqmah) {
        super();
        this.pinpai = pinpai;
        this.mah = mah;
        this.dqmah = dqmah;
    }
    public static void main(String[]args)
    {
        power myMi = new power("小米",20000,500);
        
        System.out.println("品牌 = "+ myMi.getPinpai());
        
        System.out.println("电量 = "+ myMi.getMah());
        
        
    }

}

}