public class AutoMoblie{
    public AutoMoblie(int oilVolume, int leftOilVolume){
        int addOilVolume = oilVolume - leftOilVolume;
        int time = 0;
        
        System.out.println("即将加满油箱。。。。");
        while(addOilVolume != 0){
            System.out.println("还剩余" + addOilVolume + "L，已耗时" + time + "秒。");
            addOilVolume -= 2;
            time += 5;
        }
        System.out.println("还剩余" + addOilVolume + "L，已1耗时" + time + "秒。");
        
    }
    
    public static void main(String[] args){
        AutoMoblie am = new AutoMoblie(30, 6);
    }
}