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\ vehicle[1] = new Car(\"京CNY32584\宝马\ vehicle[2] = new Car(\"京NT37465\别克\林荫⼤道\"); //vehicle v = new Car(); vehicle[3] = new Car(\"京NT96968\别克\ vehicle[4] = new Bus(\"京65667\⾦杯\ vehicle[5] = new Bus(\"京8696997\⾦龙\ vehicle[6] = new Bus(\"京9696996\⾦杯\ vehicle[7] = new Bus(\"京8696998\⾦龙\ }

//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\\2.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\"); } }

以上就是本⽂的全部内容，希望对⼤家的学习有所帮助，也希望⼤家多多⽀持。