这也是参考了mooc上的一个基础项目，所以拿来写一下。不过我的Demo肯定有不好或者错误的地方，欢迎指出
1、项目功能/需求
a、展示所有可租车辆
b、选择车型、租车量
c、展示租车清单，包含：总金额、总载货量、总载客量
2、项目系统UML图
3、项目源码Demo
Car类
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;
}
}
Truck类
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;
}
}
Coach类
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;
}
}
Pickup类
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;
}
}
测试类
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);
}
}
}
4、项目命令行演示结果
