Car 加油

package com.hanqi;

public class Car {

    //属性  成员变量

    //车的颜色
    String YanSe;

    //车的品牌
    String PinPai;

    //邮箱容量
    double YouXiangRongLiang;

    //当前油量
    double DangQianYouLiang;

    //方法      函数   成员函数
    public void jiaYou(double youliang)
    {
        DangQianYouLiang += youliang;

        System.out.println("这次给"+YanSe+"的"+PinPai+"车加了"+youliang+"升油");
    }

}

Car.java

package com.hanqi;

public class text {

    public static void main(String[] args) {

        //构建一个Car的实例，对象

        Car xiali = new Car();

        xiali.PinPai = "夏利";

        xiali.YanSe = "红色";

        xiali.jiaYou(40);//加油

    }

}

text.java