Java 类和对象12

构造一辆汽车，油箱容量100L，当前里程数0，当前油量0，可以根据道路状况确定油耗,根据行驶速度与行驶时间， 输出当前油量与总里程数。

public class Car_1 {

    // 车牌
    private String CheP;
    // 邮箱容量 单位：L
    private double YouXRL = 100;
    // 总里程数 单位：km
    private double LiC = 0;
    // 油耗
    private double YouH = 10;
    // 当前油量 单位：L
    private double DangQYL = 0;

    public String getCheP() {
        return CheP;
    }

    public void setCheP(String cheP) {
        CheP = cheP;
    }

    public double getYouXRL() {
        return YouXRL;
    }

    public void setYouXRL(double youXRL) {
        YouXRL = youXRL;
    }

    public double getLiC() {
        return LiC;
    }

    public void setLiC(double liC) {
        LiC = liC;
    }

    public double getYouH() {
        return YouH;
    }

    public void setYouH(double youH) {
        YouH = youH;
    }

    public double getDangQYL() {
        return DangQYL;
    }

    public void setDangQYL(double dangQYL) {
        DangQYL = dangQYL;
    }

    public Car_1(String CheP) {
        this.CheP = CheP;
    }

    // 加油
    public void JiaYou(double youl) {
        if (youl < 0) {
            System.out.println("请不要偷油！");
        } else if (DangQYL + youl > YouXRL) {
            System.out.println("加油量=" + (YouXRL - DangQYL) + "L，油箱已满。");
            DangQYL = YouXRL;
        } else {
            System.out.println("加油量=" + youl+"L");
            DangQYL = DangQYL + youl;
        }
    }

    // 直接加满
    public double JiaYou() {
        double jyl = YouXRL - DangQYL;
        JiaYou(jyl);
        return jyl;
    }

    // 行驶
    public void XingShi(double ShiS, double time) {
        if (ShiS >= 0 && time >= 0) {
            if (DangQYL - YouH * ShiS * time / 100 >= 0) {
                LiC += ShiS * time;
                DangQYL -= ShiS * time * YouH / 100;
                System.out.println("当前油量=" + DangQYL+"L。");
                System.out.println("行驶里程总数=" + LiC+"km。");
            } else {
                double sj = DangQYL * 100 / YouH / ShiS;
                System.out.println("油量不足，按照" + ShiS + "km/h的时速，预计可以行驶" + sj + "小时。");
            }
        } else {
            System.out.println("转速表或时间表出错，请检查！");
        }
    }

    public static void main(String[] args) {
        //构造第一辆车
        Car_1 car1 = new Car_1("鲁C1234");

        car1.JiaYou(10);
        car1.JiaYou();

        car1.setYouH(10);// 根据不同的道路情况设置油耗
        car1.XingShi(180, 1);// 行驶速度与行驶时间
        car1.XingShi(200, 1);
        car1.XingShi(150, 5);
        car1.JiaYou(30);
        car1.XingShi(150, 5);
        car1.XingShi(-150, 5);
        car1.XingShi(150, -3);

    }

运行：