租车平台 java项目

java语言实现简易答答租车系统

• 1.项目背景介绍

• 2.项目分析

1.项目背景介绍

根据抽象类，编写一个控制台版的“答答租车系统”
功能：

1. 展示所有可租车辆
2. 选择车型、租车量
3. 展示租车清单，包含：总金额，总载货量及其车型…

2.项目分析

1. 数据模型分析
2. 业务模型分析
3. 显示和流程分析

在我们做任何项目之前都要对其进行详细分析，具体分析我就不在这里一一分析了，请看下列代码

第一步：我们需要写一个名为Car的抽象类，里面需要包含天数和车辆编号的属性

package com.imooc;

public abstract class Car {
	
	public abstract void Days(int day);
	public abstract void Vehicle_number(int num);
	
}

第二步：我们需要编写一个客车类并且继承Car类

package com.imooc;

public class Passenger_car extends Car {
	int Smart_Num_car1;
	int Smart_Days_car1;
	int Big_Num_car1;
	int Big_Days_car1;
	@Override
	public void Days(int day) {
		this.Big_Days_car1=day;
		this.Smart_Days_car1=day;
	}

	@Override
	public void Vehicle_number(int num) {
		this.Big_Num_car1=num;
		this.Smart_Num_car1=num;
	}

	public int Smart_car() {
		int moneyfrist=(500*Smart_Days_car1)*Smart_Num_car1;
		return moneyfrist;
	}

	public int Big_car() {
		int moneysecond=(800*Big_Days_car1)*Big_Num_car1;
		return moneysecond;
	}
	
}

第三步：我们需要编写一个皮卡车类并且继承Car类

package com.imooc;

public class Pickup extends Car {
	int Num_car3;
	int Days_car3;
	
	@Override
	public void Days(int day) {
		// TODO 自动生成的方法存根
		this.Days_car3=day;
	}

	@Override
	public void Vehicle_number(int num) {
		// TODO 自动生成的方法存根
		this.Num_car3=num;
	}

	public int pickup_car() {
		// TODO 自动生成的方法存根
		int money=(1000*Days_car3)*Num_car3;
		return money;
	}

}

第四步：我们需要编写一个货车类并且继承Car类

package com.imooc;

public class Truck extends Car {
	int Smart_Num_car2;
	int Smart_Days_car2;
	int Big_Num_car2;
	int Big_Days_car2;
	@Override
	public void Days(int day) {
		// TODO 自动生成的方法存根
		this.Big_Days_car2=day;
		this.Smart_Days_car2=day;
	}

	@Override
	public void Vehicle_number(int num) {
		// TODO 自动生成的方法存根
		this.Big_Num_car2=num;
		this.Smart_Num_car2=num;
	}

	public int Smart_truck_car() {
		// TODO 自动生成的方法存根
		int moneyfrist=(4500*Smart_Days_car2)*Smart_Num_car2;
		return moneyfrist;
	}
	public int Big_truck_var() {
		// TODO 自动生成的方法存根
		int moneysecond=(10000*Big_Days_car2)*Big_Num_car2;
		return moneysecond;
	}

}

第五步：编写主类，实现调用；

package com.imooc;

import java.util.Scanner;

public class Main_page {

	@SuppressWarnings("resource")
	public static void main(String[] args) {


		Main_page main_page = new Main_page();
		Passenger_car passenger_car = new Passenger_car();
		Truck truck = new Truck();
		Pickup pickup = new Pickup();
		
		while (true) {
			System.out.println("欢迎使用答答租车系统：");
			System.out.println("----------------");
			System.out.println("   您是否需要租车：");
			System.out.println("---1.是---2.否---");
			Scanner scanner = new Scanner(System.in);
			int Vaule = scanner.nextInt();

			if (Vaule == 1) {
				main_page.Tips();
			} else {
				break;
			}

			System.out.println("请输入您要租汽车的数量：");
			Scanner scanner1 = new Scanner(System.in);
			int Vaule1 = scanner1.nextInt();

			System.out.println("同一型号的车需要多少辆：");
			Scanner scanner2 = new Scanner(System.in);
			int num = scanner2.nextInt();
			
			System.out.println("请输入租车天数：");
			Scanner Time = new Scanner(System.in);
			int Time_car = Time.nextInt();

			Scanner inPut = new Scanner(System.in);

			int array1[] = new int[Vaule1];
			int array2[] = new int[Vaule1];
			int Vaule2 = 0;
			int sum=0;
			String name[]=new String[5];
			
			for (int i = 0; i < array1.length; i++) {
				System.out.println("请输入第" + (i + 1) + "辆车的序号");
				array2[i] = inPut.nextInt();
				Vaule2 = array2[i];
				if (Vaule2 == 1) {
					passenger_car.Days(Time_car);
					passenger_car.Vehicle_number(num);
					sum=sum+passenger_car.Smart_car();
					String name_Smart_car="奥迪";
					name[0]=name_Smart_car;
				}
				else if (Vaule2 == 2) {
					passenger_car.Days(Time_car);
					passenger_car.Vehicle_number(num);
					sum=sum+passenger_car.Big_car();
					String name_Big_car="金龙";
					name[1]=name_Big_car;
				}
				else if (Vaule2 == 3) {
					truck.Days(Time_car);
					truck.Vehicle_number(num);
					sum=sum+truck.Smart_truck_car();
					String name_Smart_truck_car="小货车";
					name[2]=name_Smart_truck_car;
				}
				else if (Vaule2 == 4) {
					truck.Days(Time_car);
					truck.Vehicle_number(num);
					sum=sum+truck.Big_truck_var();
					String name_Big_truck_car="大货车";
					name[3]=name_Big_truck_car;
				}
				else if (Vaule2 == 5) {
					pickup.Days(Time_car);
					pickup.Vehicle_number(num);
					sum=sum+pickup.pickup_car();
					String name_pickup_car="皮卡";
					name[4]=name_pickup_car;
				}
			}
			System.out.println("****************");
			System.out.println("一共需要付款："+sum);
			for(String name_arrays:name) {
				if(name_arrays!=null) {
				System.out.print("购买车辆："+name_arrays+" ");
				}
			}
			System.out.println();
			System.out.println("****************");
			
		}
	}
	public void Tips() {
		System.out.println("您可租车的类型及其价目表：");
		System.out.println("序号     汽车名称     租金                  容量");
		System.out.println("1.   奥迪             500元/天       载人：4人");
		System.out.println("2.   金龙             800元/天       载人：20人");
		System.out.println("3.   小货车         4500元/天     载重：4吨");
		System.out.println("4.   大货车         10000元/天   载重：15吨");
		System.out.println("5.   皮车             1000元/天      载人：4  载货：2吨");
	}

}