java实现简单租车系统

package Car.rental;public class Car { private String name; private int rent; private int passenger; private double volume; public String getName() { return name; } public void setName(String name) { this.name = name; } public int getRent() { return rent; } public void setRent(int rent) { this.rent = rent; } public int getPassenger() { return passenger; } public void setPassenger(int passenger) { this.passenger = passenger; } public double getVolume() { return volume; } public void setVolume(double volume) { this.volume = volume; }}

package Car.rental;public class Truck extends Car { private String name; private int rent; private double volume; public Truck(String name,int rent,double volume) { this.name=name; this.rent=rent; this.volume=volume; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getRent() { return rent; } public void setRent(int rent) { this.rent = rent; } public double getVolume() { return volume; } public void setVolume(double volume) { this.volume = volume; }}

package Car.rental;public class Coach extends Car { private String name; private int rent; private int passenger; public Coach(String name,int rent,int passenger) { this.name=name; this.passenger=passenger; this.rent=rent; } public int getPassenger() { return passenger; } public void setPassenger(int passenger) { this.passenger = passenger; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getRent() { return rent; } public void setRent(int rent) { this.rent = rent; }}

package Car.rental;public class Pickup extends Car { private String name; private int rent; private int passenger; private double volume; public Pickup(String name,int rent,int passenger,double volume) { this.name=name; this.passenger=passenger; this.rent=rent; this.volume=volume; } public int getPassenger() { return passenger; } public void setPassenger(int passenger) { this.passenger = passenger; } public double getVolume() { return volume; } public void setVolume(double volume) { this.volume = volume; } public String getName() { return name; } public void setName(String name) { this.name = name; } public int getRent() { return rent; } public void setRent(int rent) { this.rent = rent; }}

package Car.rental;import java.util.Scanner;public class main_Car { public static void main(String[] args) { // TODO Auto-generated method stub /*****创建车对象*******/ /*Car tru=new Truck("拉丝货车",200,1.1); Car coa=new Coach("法法客车",150,20); Car Pic=new Pickup("无名皮卡车",300,4,0.5);*/ Car[] Allcar= {new Truck("拉丝货车",200,1.1),new Coach("法法客车",150,20),   new Pickup("无名皮卡车",300,4,0.5)}; System.out.println("请问您是否要租车：1.是 2.否"); Scanner scan=new Scanner(System.in); String input=scan.next(); if(input.equals("1")) {  int all_rent = 0;//总租金  int all_passenger=0;//总载客  double all_volume=0.0;//总载货  System.out.println("您可租车的类型及其价目");  System.out.println("序号/t汽车名称/t租金/t容量/t");  for(int i=0;i<Allcar.length;i++)  {  if(Allcar[i] instanceof Truck)  {   System.out.println((i+1)+"/t"+Allcar[i].getName()+"/t"+Allcar[i].getRent()+"/t"+"载货："+Allcar[i].getVolume());  }  if(Allcar[i] instanceof Coach)  {   System.out.println((i+1)+"/t"+Allcar[i].getName()+"/t"+Allcar[i].getRent()+"/t"+"载客："+Allcar[i].getPassenger());  }  if(Allcar[i] instanceof Pickup)  {   System.out.println((i+1)+"/t"+Allcar[i].getName()+"/t"+Allcar[i].getRent()+"/t"+"载客："+Allcar[i].getPassenger()+"载货："+Allcar[i].getVolume());  }  }  System.out.println("请输入您要租车的数量");  int sum=scan.nextInt();  int Car_order;  for(int j=0;j<sum;j++)  {  System.out.print("你要租的第"+(j+1)+"辆车的序号是：");  Car_order=scan.nextInt();  System.out.println();  if(Allcar[Car_order-1] instanceof Truck)  {   all_rent+=Allcar[Car_order-1].getRent();   all_volume+=Allcar[Car_order-1].getVolume();  }  if(Allcar[Car_order-1] instanceof Coach)  {   all_rent+=Allcar[Car_order-1].getRent();   all_passenger+=Allcar[Car_order-1].getPassenger();  }  if(Allcar[Car_order-1] instanceof Pickup)  {   all_rent+=Allcar[Car_order-1].getRent();   all_passenger+=Allcar[Car_order-1].getPassenger();   all_volume+=Allcar[Car_order-1].getVolume();  }  }  System.out.println("您的总租金是："+all_rent);  System.out.println("您的总载货是:"+all_volume);  System.out.println("您的总载客是："+all_passenger); } }}