今天也要加油鸭丶
2016-04-06 18:20
//(1)汽车类 package com.MuTong.DadaUber; public class AllCar { private int num; private String name; private int money; public int getNum() { return num; } public void setNum(int num) { this.num = num; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getMoney() { return money; } public void setMoney(int money) { this.money = money; } }
//(2)轿车类 package com.MuTong.DadaUber; public class PassengerCar extends AllCar { private int passenger; public PassengerCar(int num,String name,int money,int passenger){ setNum(num); setName(name); setMoney(money); setPassenger(passenger); } public int getPassenger() { return passenger; } public void setPassenger(int passenger) { this.passenger = passenger; } }
//(3)皮卡类 package com.MuTong.DadaUber; public class PickupCar extends AllCar { private int passenger; private int goods; public PickupCar(int num,String name,int money,int passenger,int goods){ setNum(num); setName(name); setMoney(money); setPassenger(passenger); setGoods(goods); } public int getPassenger() { return passenger; } public void setPassenger(int passenger) { this.passenger = passenger; } public int getGoods() { return goods; } public void setGoods(int goods) { this.goods = goods; } }
(4)货车类 package com.MuTong.DadaUber; public class carryCar extends AllCar{ private int goods; public carryCar(int num,String name,int money,int goods){ setNum(num); setName(name); setMoney(money); setGoods(goods); } public int getGoods() { return goods; } public void setGoods(int goods) { this.goods = goods; } }
(5)主干类 package com.MuTong.DadaUber; import java.util.*; public class initialTest { public void circle() { // TODO Auto-generated method stub System.out.print("Welcome to Dada Uber!\n您是否需要租借车辆?(yes-1 no-2)"); Scanner sca=new Scanner(System.in); int s=sca.nextInt(); if(s==1) cal(); else{ if(s==2) System.out.println("Thank you to come to Dada Uber!\n\n"); else System.out.println("您输入有误。\n\n"); } circle(); } public void cal(){ AllCar cars[]={new PassengerCar(1,"玛莎拉蒂",3000,4), new PassengerCar(2,"二手奥拓",200,4), new PickupCar(3,"皮卡雪6",450,3,1), new carryCar(4,"亚星载货",800,3)}; System.out.println("编号\t"+"汽车名称\t"+"租金\t"+"容量"); for(AllCar car:cars){ if(car instanceof PassengerCar){ //若它是客车类型的实例,则打印出客车应该有的属性值,这里注意强转,否则不会出现passengerCar类的passenger属性 System.out.println("编号:"+car.getNum()+"\t汽车名称:"+car.getName()+"\t租金:"+car.getMoney()+"\t载人数:"+((PassengerCar)car).getPassenger()); } //(PassengerCar)car 代表将AllCar类型的引用car强制转换成括号里的PassengerCar类型 if(car instanceof PickupCar){ System.out.println("编号:"+car.getNum()+"\t汽车名称:"+car.getName()+"\t租金:"+car.getMoney()+"\t载人数:"+((PickupCar)car).getPassenger()+"\t载货数:"+((PickupCar)car).getGoods()); } if(car instanceof carryCar){ System.out.println("编号:"+car.getNum()+"\t汽车名称:"+car.getName()+"\t租金:"+car.getMoney()+"\t载货数:"+((carryCar)car).getGoods()); } } System.out.println("请输入您要租车的数量:"); Scanner c=new Scanner(System.in); int n=c.nextInt(); //List <AllCar>carlist=new ArrayList<AllCar>();//List 集合框架!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! //int k=0; List <AllCar>passengercarlist=new ArrayList<AllCar>();//用来储存可载人的车辆 List <AllCar>carrycarlist=new ArrayList<AllCar>();//用来储存可载货的车辆 int totalpassenger=0; int totalgoods=0; int totalmoney=0; for(int i=0;i<n;i++){ System.out.println("请输入选择的第"+(i+1)+"辆车的编号:"); int num=c.nextInt();//记录用户选择的车辆的编号 //carlist.add(cars[num-1]); if(cars[num-1] instanceof PassengerCar){ totalpassenger += ((PassengerCar)cars[num-1]).getPassenger(); totalmoney += cars[num-1].getMoney(); passengercarlist.add(cars[num-1]); } if(cars[num-1] instanceof PickupCar){ totalpassenger += ((PickupCar)cars[num-1]).getPassenger(); totalgoods += ((PickupCar)cars[num-1]).getGoods(); totalmoney += cars[num-1].getMoney(); passengercarlist.add(cars[num-1]); carrycarlist.add(cars[num-1]); } if(cars[num-1] instanceof carryCar){ totalgoods += ((carryCar)cars[num-1]).getGoods(); totalmoney += cars[num-1].getMoney(); carrycarlist.add(cars[num-1]); } } System.out.println("请输入租用天数:"); int day=c.nextInt(); totalmoney*=day; System.out.println("******************租用的可载人车有*********************"); for(AllCar car:passengercarlist) System.out.println(car.getName()); System.out.println("******************租用的可载货车有*********************"); for(AllCar car:carrycarlist) System.out.println(car.getName()); System .out.print("*********************总载人数***********************\n"+totalpassenger+"\n"); System .out.print("*********************总载货量***********************\n"+totalgoods+"\n"); System .out.print("*********************总租金***********************\n"+totalmoney+"\n\n\n"); } }
(6)测试类 package com.MuTong.DadaUber; public class test { public static void main(String[] args) { // TODO Auto-generated method stub initialTest t=new initialTest(); t.circle(); } }
主干类 第 19行 应放在 第18行 else 里面
错误在哪儿啊,f代表是单精度的浮点数,不能改
Java入门第二季 升级版
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