汽车租赁管理系统V2.0
- 记录pta上Java实验二 —— 汽车租赁管理系统
- RenCar
- 父类
- 三个子类
- 主类
记录pta上Java实验二 —— 汽车租赁管理系统
这里记录下自己的代码，有些地方可能考虑并不是很全面，可以优化
运行截图：
以下是代码部分
RenCar
父类
Vehicle.java
package CarRentalSystem.RentCar;
public abstract class Vehicle {
private String vehicleId;
private String brand;
private int perRent;
private String type;
/* setter 和 getter */
//车辆种类的
public String getVehicleId() {
return vehicleId;
}
public void setVehicleId(String vehicleId) {
this.vehicleId = vehicleId;
}
//车辆具体品牌的
public String getBrand() {
return brand;
}
public void setBrand(String brand) {
this.brand = brand;
}
//日租金的
public int getPerRent() {
return perRent;
}
public void setPerRent(int perRent) {
this.perRent = perRent;
}
//车牌
public String getType() {
return type;
}
public void setType(String type) {
this.type = type;
}
public Vehicle(){}
public Vehicle(String vehicleId, String brand, String type, int perRent){
setVehicleId(vehicleId);
setBrand(brand);
setPerRent(perRent);
setType(type);
}
//应付租金的抽象方法
public abstract float calRent(int days);
}三个子类
Car.java
package CarRentalSystem.RentCar;
public class Car extends Vehicle {
public Car(){}
//设置Car的构造方法，用于接收菜单中选择的结果，new要的车
public Car(String vehicleId, String brand,String type, int perRent){
//调用父类Vehicle的构造方法
super(vehicleId, brand, type, perRent);
}
@Override
public float calRent(int days){
float rents;
if(days > 150){
rents = getPerRent() * days * (float)0.7;
}else if(days > 30){
rents = getPerRent() * days * (float)0.8;
}else if(days > 7){
rents = getPerRent() * days * (float)0.9;
}else{
rents = getPerRent() * days;
}
return rents;
}
}Bus.java
package CarRentalSystem.RentCar;
public class Bus extends Vehicle {
private int seats;
public int getSeats() {
return seats;
}
public void setSeats(int seats) {
this.seats = seats;
}
public Bus(){}
//设置Bus的构造方法，用于接收菜单中选择的结果，new要的车
public Bus(String vehicleId, String brand, String type, int perRent, int seats){
//调用父类Vehicle的构造方法
super(vehicleId, brand, type, perRent);
setSeats(seats);
}
@Override
public float calRent(int days){
float rents;
if(days > 150){
rents = getPerRent() * days * (float)0.7;
}else if(days > 30){
rents = getPerRent() * days * (float)0.8;
}else if(days > 7){
rents = getPerRent() * days * (float)0.9;
}else{
rents = getPerRent() * days;
}
return rents;
}
}Trunk.java
package CarRentalSystem.RentCar;
public class Trunk extends Vehicle {
private int load;//载重量，单位是 吨/t
public int getLoad() {
return load;
}
public void setLoad(int load) {
this.load = load;
}
public Trunk(){}
//设置Trunk的构造方法，用于接收菜单中选择的结果，new要的车
public Trunk(String vehicleId, String brand, String type, int perRent, int load){
//调用父类Vehicle的构造方法
super(vehicleId, brand, type, perRent);
setLoad(load);
}
//重写父类的付费方法
@Override
public float calRent(int kilos){
float rents = (float)0.0;
//出于货车载重量的考虑，这里根据载重量的不同档位设置相应的收费标准
if(getLoad() <= 10){
rents = getLoad() * kilos * (float)0.08;
}else if(getLoad() <= 40){
rents = 10*(float)0.08 + (getLoad() - 10)*(float)0.12;
}else if(getLoad() > 40){
rents = 10*(float)0.08 + 30*(float)0.12 + (getLoad() - 30)*(float)0.2;
}
return rents;
}
}主类
RentMgrSys.java
package CarRentalSystem.RentMgrSys;
import CarRentalSystem.RentCar.*;
import java.util.Scanner;
public class RentMgrSys {
//打印系统欢迎语
public static void printWelcome(){
System.out.println("☆☆☆☆ 欢迎光临暮商汽车租赁系统 --Designed by 暮商十二 ☆☆☆☆");
}
//打印选择车型的菜单 --> 轿车、客车 or 卡车
public static void menu_ChooseKind(){
printWelcome();
System.out.println(" 1.轿车 2.客车 3.卡车 0、退出系统");
System.out.printf(" 请选择你要租赁的汽车类型:");
}
public static void whichCar(){
System.out.printf(" 1、宝马 2、别克");
}
//打印品牌
public static void menu_ChooseYourCar(int type){
if(type == 1){
System.out.println(" 1.宝马-X6 2.宝马-550i");
}else{
System.out.println(" 1.别克-林荫大道 2、别克-GL8");
}
System.out.printf(" 请选择你要租赁的轿车品牌:");
}
//打印客车品牌
public static void menu_ChooseBusTYpe(){
System.out.printf(" 1.金杯 2.金龙");
}
//输入客车座位数
public static void menu_ChooseSeats(){
System.out.printf(" 请输入乘客数量");
}
//打印货车品牌
public static void menu_TrunkType(){
System.out.println(" 货车计重收费标准如下\n 1、装载10t内: 每吨每公里收费0.08元\n 2、装载超过10t但不超过40t: 超过部分每吨每公里加收0.04元\n 3/装载超过40t但未超过上限: 超过40t的部分每吨每公里再加收0.08元");
menu_ChooseTrunkType();
System.out.printf(" 1、大卡A-限载50t 日租1200元 2、大卡B-限载70t 日租1600元");
}
//打印货车类型选择
public static void menu_ChooseTrunkType(){
System.out.println(" 请选择您要租赁的货车类型");
}
public static void menu_TrunkLoad(){
System.out.printf(" 请输入装运货物重量，单位为吨: ");
}
//分配车牌号提示
public static void menu_vehicle(String str){
System.out.println(" 分配给您的汽车车牌号是: "+str);
}
//天数
public static void setDays(){
System.out.printf(" 请选择您要租赁的天数: ");
}
//付费提示
/*public static void menu_showRents(float rents){
System.out.println(" 您需要支付的租金是: "+rents);
}*/
public static void main(String[] args){
String vehicleId = "", type = "", brand = "";//品牌等车辆基础信息
int carKind, theCar, busKind, trKind = 0;//车辆选择信息
int preRent = 0, days = 0, load = 0, kelos = 0, seats = 0;//租金计算信息
int nums = 0;//租的车辆数
Bus bus;
Car car;
Trunk tr;
Scanner in = new Scanner(System.in);
menu_ChooseKind();
int CarType = in.nextInt();
//考虑到实际情景，所以设置一个while循环来模拟实际选车场景，用户可以通过选择不同的操作代号进行多次租车或是系统退出
while(true){
//无限循环，用户通过手动选择4来退出系统
switch (CarType){//根据不同的选择代号进行不同操作，选择4退出
case 1://轿车
//Car car;
whichCar();//选择宝马还是别克
carKind = in.nextInt();
menu_ChooseYourCar(carKind);//宝马或是别克的具体型号
theCar = in.nextInt();
if(carKind == 1){
vehicleId = "宝马";
if(theCar == 1){
brand = "X6";
preRent = 800;
type = "京NY28588";
}else if(theCar == 2){
brand = "550i";
preRent = 600;
type = "京CNY3284";
}
}else if(carKind == 2){
vehicleId = "别克";
if(theCar == 1){
brand = "林荫大道";
preRent = 300;
type = "京NT37465";
}else if(theCar == 2){
brand = "GL8";
preRent = 600;
type = "京NT96968";
}
}
setDays();
days = in.nextInt();
car = new Car(vehicleId, brand, type, preRent);//根据选择，录入所租车的数据
menu_vehicle(car.getType());
System.out.println(" 您所租的车辆种类是: "+car.getVehicleId()+"-"+car.getBrand());
System.out.print(" 您需要支付的租赁费用是:"+ car.calRent(days) + "元");
break;
case 2:
//Bus bus;
nums = 0;
menu_ChooseBusTYpe();
busKind = in.nextInt();
if(busKind == 1){
vehicleId = "金杯";
}else{
vehicleId = "金龙";
}
menu_ChooseSeats();
seats = in.nextInt();
if(busKind == 1){
brand = "16座";
if(seats <= 16){
nums = 1;
type="京6566754";
}else if(seats > 16){
nums = seats%16 == 0?seats/16:(seats/16+1);
type="京6566754、京8696997";
}
preRent = 800 * nums;
}else if(busKind == 2){
brand = "34座";
if(seats <= 34){
nums = 1;
type = "京9696996";
}else if(seats > 34){
type = "京9696996、京8696998";
nums = seats%34 == 0?seats/34:(seats/34+1);
}
preRent = 1500*nums;
}
setDays();
days = in.nextInt();
bus = new Bus(vehicleId, brand, type, preRent,seats);
menu_vehicle(bus.getType());
System.out.println(" 您所租的车辆种类是: "+bus.getVehicleId()+"-"+bus.getBrand());
System.out.print(" 您需要支付的租赁费用是:"+ bus.calRent(days) + "元");
break;
case 3:
//Trunk tr;
nums = 0;
menu_TrunkType();//选择卡车类型
trKind = in.nextInt();
if(trKind == 1){
vehicleId = "大卡A";
}else{
vehicleId = "大卡B";
}
menu_TrunkLoad();
load = in.nextInt();
if(trKind== 1){
brand = "限载50t";
if(load <= 50){
nums = 1;
type="京11111";
}else if(load > 50){
nums = load%50 == 0?load/50 :(load/50);
type="京11111、京22222";
}
preRent = 1200*nums;
}else if(trKind == 2){
brand = "限载70t";
if(load <= 70){
nums = 1;
type = "京22222";
}else if(load > 70){
type = "京11111、京22222";
nums = load%70 == 0?load/70:(load/70+1);
}
preRent = 1600*nums;
}
setDays();
days = in.nextInt();
menu_vehicle(type);
tr = new Trunk(vehicleId, brand, type, preRent, load);
System.out.printf(" 请输入预计公里数(整数):");
kelos = in.nextInt();
float res = tr.calRent(kelos) + days*preRent;
System.out.println(" 您所租的车辆种类是: "+tr.getVehicleId()+"-"+tr.getBrand());
System.out.println(" 您需要支付的租赁费用是:" + res + "元");
break;
case 0:
System.exit(0);
}
System.out.printf("\n\n");
menu_ChooseKind();
CarType = in.nextInt();
}
}
}有很多地方还可以优化，参考的时候可以自己按照自己需求改一下
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