java实现汽车租赁系统
本文实例为大家分享了java实现汽车租赁系统的具体代码，供大家参考，具体内容如下
//车类
public abstract class Vehicle {
//车牌号 品牌 日租金
private String id;
private String brand;
private int perRent;
public Vehicle(){}
//Vehicle的带参构造方法
public Vehicle(String id, String brand, int perRent) {
this.id = id;
this.brand = brand;
this.perRent = perRent;
}
public void setId(String id){
this.id=id ;
}
public String getId(){
return id;
}
public void setBrand(String brand){
this.brand=brand;
}
public String getBrand(){
return brand;
}
public void setPerRent(int perRent){
this.perRent=perRent;
}
public int getPerRent(){
return perRent;
}
//抽象方法计算租金
public abstract double calcRent(int days);
}
//轿车类
public class Car extends Vehicle{
//型号
private String type;
public void setType(String type){
this.type=type;
}
public String getType(){
return type;
}
public Car(){}
//Car的带参构造方法
public Car(String id, String brand, int perRent,String type) {
super(id,brand,perRent);
this.type = type;
}
//重写父类的计算租金方法：根据自己的计算租金规则
public double calcRent(int days) {
double price = this.getPerRent()*days;
if(days>7 && days<=30){
price *= 0.9;
}else if(days>30 && days<=150){
price *= 0.8;
}else if(days>150){
price *= 0.7;
}
return price;
}
}
//客车类
public class Bus extends Vehicle{
//座位数
private int seatCount;
public void setSeatCount(int seatCount){
this.seatCount=seatCount;
}
public int getSeatCount(){
return seatCount;
}
public Bus(){}
//Bus的带参构造方法
public Bus(String id,String brand,int perRent,int seatCount){
super(id,brand,perRent);
this.seatCount = seatCount;
}
//重写父类的计算租金方法：根据自己的计算租金规则
public double calcRent(int days) {
double price = this.getPerRent()*days;
if(days>=3 && days<7){
price *= 0.9;
}else if(days>=7 && days<30){
price *= 0.8;
}else if(days>=30 && days<150){
price *= 0.7;
}else if(days>150){
price *= 0.6;
}
return price;
}
}
//汽车业务类
public class Operation {
public Vehicle[] vehicle = new Vehicle[8];
//初始化汽车信息
public void init(){
vehicle[0] = new Car("京NY28588","宝马",800,"X6"); //vehicle v = new Car();
vehicle[1] = new Car("京CNY32584","宝马",600,"550i"); //vehicle v = new Car();
vehicle[2] = new Car("京NT37465","别克",300,"林荫大道"); //vehicle v = new Car();
vehicle[3] = new Car("京NT96968","别克",600,"GL8"); //vehicle v = new Car();
vehicle[4] = new Bus("京6566754","金杯",800,16); //vehicle v = new Bus();
vehicle[5] = new Bus("京8696997","金龙",800,16); //vehicle v = new Bus();
vehicle[6] = new Bus("京9696996","金杯",1500,34); //vehicle v = new Bus();
vehicle[7] = new Bus("京8696998","金龙",1500,34); //vehicle v = new Bus();
}
//租车：根据用户提供的条件去汽车数组中查找相应车辆并返回
//如果租赁的是轿车 需要条件：品牌 型号
//如果租赁的是客车 需要条件：品牌 座位数
//简单工厂模式
public Vehicle zuChe(String brand,String type,int seatCount){
Vehicle che = null;
//for循环遍历数组vehicle
for(Vehicle myche : vehicle){
//判断Vehicle类的myche的类型是否和Car一样
if(myche instanceof Car){
//Vehicle类的myche向下转型变成子类Car
Car car = (Car)myche;
if(car.getBrand().equals(brand) && car.getType().equals(type)){
che=car;
break;
}
}else{
//Vehicle类的myche向下转型变成子类Bus
Bus bus = (Bus)myche;
if(bus.getBrand().equals(brand) && bus.getSeatCount() == seatCount){
che=bus;
break;
}
}
}
return che;
}
}
//汽车租赁
public class Rent {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
Operation operation = new Operation();
//租赁公司界面
operation.init();
System.out.println("**********欢迎光临租赁公司**********");
System.out.println("1.轿车\t\t2.客车");
System.out.println("请选择您要租赁的汽车类型：（1.轿车 2.客车）");
int cheType = input.nextInt();
String brand = "";//品牌
String type = "";//型号
int seatCount = 0;//座位数
//收集用户条件
if(cheType == 1){
//租赁轿车
System.out.println("请选择您要租赁的轿车品牌：（1.别克 2.宝马）");
int choose = input.nextInt();
if(choose == 1){
brand="别克";
System.out.println("请选择您要租赁的汽车型号：（1.林荫大道 2.GL8）");
type=(input.nextInt() == 1)?"林荫大道":"GL8";
}else if(choose == 2){
brand="宝马";
System.out.println("请选择您要租赁的汽车型号：（1.X6 2.550i）");
type=(input.nextInt() == 1)?"X6":"550i";
}
}else if(cheType == 2){
//租赁客车
type= "";
System.out.println("请选择您要租赁的客车品牌：（1.金杯 2.金龙）");
brand=(input.nextInt()==1)?"金杯":"金龙";
System.out.println("请选择您要租赁的客车座位数：（1.16座 2.32座）");
seatCount=(input.nextInt() == 1)?16:34;
}
//租车
Vehicle che = operation.zuChe(brand, type, seatCount);
System.out.println("请输入您的租赁天数：");
int days = input.nextInt();
double money = che.calcRent(days);
System.out.println("租车成功，请按照如下车牌号提车："+che.getId());
System.out.println("您需要支付："+money+"元");
}
}
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