代码练习----以电脑为例

package com.hanqi;

public class Computer
   {

    private String pinP;//品牌

    public String getPinP()
    {
        return pinP;
    }

    public void setPinP(String pinP)
    {
        this.pinP = pinP;
    }
    private String yanS;//颜色

    public void setYanS(String yanS) {
        this.yanS = yanS;
    }
    private String zhuangT = "开机";//状态

    public String getZhuangT()
    {
        return zhuangT;
    }
    private double dianCRL;//电池容量

    public double getDianCRL() {
        return dianCRL;
    }
    public void setDianCRL(double dianCRL) {
        this.dianCRL = dianCRL;
    }
    private double dianL=0;//电量

    public double getDianL(int i) {
        return dianL;
    }
    public void setDianL() {
        this.dianL = dianL;
    }
    double dangQDL = this.dianCRL - this.dianL;
    public void chongD(double dianL)//充电
    {

        if(dianCRL <= 0)
        {
            System.out.println("未装电池，请连接电源线");
            return;
        }

        else if(dangQDL <=0.05)
        {
            System.out.println("电量不足，即将关机");
            return;
        }
        else
        {
            System.out.println("电量已满，请断开电源线");

        }
}
    public Computer(String pinP)
    {
        System.out.println("实例化电脑的品牌是"+pinP);
        this.pinP = pinP;
    }
    public static void main(String[] args)
    {
        Computer computer = new Computer("联想");

        computer.chongD(600);
        computer.setDianCRL(500);
        computer.getDianL(400);
        computer.setYanS("银色");

        System.out.println("电脑的品牌是"+computer.pinP);
        System.out.println("颜色是"+computer.yanS+",状态是"+computer.zhuangT);
        System.out.println("充了"+computer.dianL+"毫安·时电量");
    }
    }