Java如何实现汽车租赁系统(java,开发技术)

汽车租赁：

分为客车和轿车两种：

客车小于20座：500一天，大于20座：900一天。

轿车分为豪华和普通：豪华600一天，普通200一天。

效果图：

代码如下：

机动车类：

packagebusTest;/*机动车类*/publicabstractclassMotoVehicle{privateStringcarNumber;//车牌号privateStringcarBrand;//车品牌//构造方法publicMotoVehicle(){}publicMotoVehicle(StringcarNumber,StringcarBrand){this.carNumber=carNumber;this.carBrand=carBrand;}//get/setpublicStringgetCarNumber(){returncarNumber;}publicvoidsetCarNumber(StringcarNumber){this.carNumber=carNumber;}publicStringgetCarBrand(){returncarBrand;}publicvoidsetCarBrand(StringcarBrand){this.carNumber=carNumber;}/*计算租赁的方法*/publicabstractintcalRent(intdays);}

客车类：

packagebusTest;publicclassBusextendsMotoVehicle{privateintsetCount;//座位数//通过构造方法初始化对象publicBus(StringcarNUmber,Stringbrand,intsetCount){super(carNUmber,brand);this.setCount=setCount;}@OverridepublicintcalRent(intdays){//根据座位数量来判断租赁的金额if(this.setCount<20){returndays*500;}else{returndays*900;}}publicvoidshowBusInfo(intdays){System.out.println("*");System.out.println("\t车牌号:"+super.getCarNumber());System.out.println("\t车品牌:"+super.getCarBrand());System.out.println("\t座位数:"+this.setCount);System.out.println("\t租赁天数:"+days);System.out.println("\t金额:"+calRent(days));}}

轿车类：

packagebusTest;publicclassCarextendsMotoVehicle{privateStringtype;//汽车类型普通/豪华//通过构造方法初始化对象publicCar(StringcarNUmber,Stringbrand,Stringtype){super(carNUmber,brand);this.type=type;}@OverridepublicintcalRent(intdays){//根据类型来决定价格if("豪车".equals(type)){returndays*600;}else{returndays*200;}}publicvoidshowCarInfo(intdays){System.out.println("*");System.out.println("\t车牌号:"+super.getCarNumber());System.out.println("\t车品牌:"+super.getCarBrand());System.out.println("\t车类型:"+this.type);System.out.println("\t租赁天数:"+days);System.out.println("\t金额:"+calRent(days));}}

租车顾客类：

packagebusTest;/*顾客类*/importjava.util.Scanner;publicclassCustomer{privateStringname;privateintsum=0;//当不确定我的购物车内具体是轿车还是客车，那就以父亲类类型创建对象数组MotoVehicle[]motos=newMotoVehicle[10];Scannerinput=newScanner(System.in);publicvoidshowMenu(){//定义一个父类机动车的对象，在下面可以接收MotoVehiclemoto=null;System.out.println("******汽车租赁系统*******");Stringanswer;do{System.out.println("1、租赁客车2、租赁轿车");System.out.print("请输入编号：");intnum=input.nextInt();if(num==1){//创建租赁的客车对象moto=rentBus();}elseif(num==2){//创建租赁的轿车对象moto=rentCar();}for(inti=0;i<motos.length;i++){if(motos[i]==null){motos[i]=moto;break;}}System.out.print("是否继续租赁？：y/n");answer=input.next();}while(!"n".equals(answer));System.out.print("请输入你的姓名：");this.name=input.next();System.out.print("租赁的天数：");intdays=input.nextInt();//根据天数来统计租赁金额calTotalRent(days);//显示租赁的信息showInfo(days);}privatevoidshowInfo(intdays){System.out.println("---------------------租赁汽车信息---------------------");for(inti=0;i<motos.length;i++){MotoVehiclemoto=this.motos[i];if(moto!=null){if(motoinstanceofBus){Busbus=(Bus)moto;bus.showBusInfo(days);}elseif(motoinstanceofCar){Carcar=(Car)moto;car.showCarInfo(days);}}}System.out.println("\t顾客："+this.name+"\t\t总金额："+sum);System.out.println("----------------------------------------------------");}privatevoidcalTotalRent(intdays){inttotal=0;for(MotoVehiclemoto:motos){if(moto!=null){intrent=moto.calRent(days);total+=rent;//累加总金额}this.sum=total;//把总金额复制给全局变量sum}}//轿车privateMotoVehiclerentCar(){System.out.print("请输入轿车品牌：");Stringbrand=input.next();System.out.print("请输入轿车车牌号：");StringcarNumber=input.next();System.out.print("请选择轿车类型[1、豪车2、普通车：]");intchoise=input.nextInt();Stringtype;if(choise==1){type="豪车";}else{type="普通型";}returnnewCar(carNumber,brand,type);}//客车privateMotoVehiclerentBus(){System.out.print("请输入客车品牌：");Stringbrand=input.next();System.out.print("请输入客车车牌号：");StringcarNumber=input.next();System.out.print("请输入客车座位数：");intseatCount=input.nextInt();returnnewBus(carNumber,brand,seatCount);}}

测试类：

packagebusTest;publicclassTestMain{publicstaticvoidmain(String[]args){Customercustomer=newCustomer();customer.showMenu();}}