Java实现答答租车系统

Java实现答答租车系统

本文实例为大家分享了java实现答答租车系统的具体代码，供大家参考，具体内容如下

项目需求：

基本界面需求：

and:

最后是把账单打印出来：

个人代码实现

基本思路：考虑到车辆之间的共性，设置一个父类Car, 子类MannedCar(载人), Truck(载货)，BothCary(既载人又载货)，三者继承父类Car的price, name属性, getName()方法, 同时重写getPersonNum, getGoodsNum方法。

Car.java:

package Car;

public abstract class Car {

protected int price;

protected String name;

protected int getPrice() {

return price;

}

protected String getName() {

return name;

}

public int getPersonNum() {

// TODO Auto-generated method stub

return 0;

}

public int getGoodsNum() {

// TODO Auto-generated method stub

return 0;

}

}

MannedCar.java:

package Car;

public class MannedCar extends Car {

private int personNum;

public MannedCar() {

this.personNum = 0;

this.price = 0;

this.name = "";

}

public MannedCar(int personNum, int price, String name) {

this.personNum = personNum;

this.price = price;

this.name = name;

}

@Override

public int getPersonNum() {

return personNum;

}

}

Truck.java:

package Car;

public class Truck extends Car{

private int goodsNum;

public Truck() {

this.price = 0;

this.goodsNum = 0;

this.name = "";

}

public Truck(int price, int goodsNum, String name) {

this.price = price;

this.goodsNum = goodsNum;

this.name = name;

}

@Override

public int getGoodsNum() {

return goodsNum;

}

}

BothCarry.java:

package Car;

public class BothCarry extends Car {

private int personNum;

private int goodsNum;

public BothCarry() {

this.personNum = 0;

this.goodsNum = 0;

this.name = "";

this.price = 0;

}

public BothCarry(int price, int personNum,

int goodsNum, Strinhttp://g name) {

this.personNum = personNum;

this.goodsNum = goodsNum;

this.price = price;

this.name = name;

}

public int getPersonNum() {

return personNum;

}

public int getGoodsNum() {

return goodsNum;

}

}

系统：

CarSystem.java:

package Car;

import java.util.Scanner;

import java.util.ArrayList;

public class CarSystem {

private static String goodByeInfo = "欢迎再次使用本系统，再见！";

private static int dayBorrow;

public static void beginSystem() {

CarSystem.SystemWelcome();

Scanner scanner = new Scanner(System.in);

String userCommand = scanner.next();

switch(userCommand){

case "1":

CarSystem.getUserInput();

break;

case "0":

System.out.println(goodByeInfo);

break;

default:

System.out.println("输入错误..End running..");

System.exit(0);

break;

}

}

public static void SystemWelcome() {

System.out.println("欢迎使用答答租车系统:");

System.out.println("您是否要租车: 1-是 0-否");

}

public static void getUserInsWvloTZnYRput() {

int numCarBorrow = 0;

ArrayList carList = new ArrayList(6);

carList.add(new MannedCar(4,500,"奥迪A4"));

carList.add(new MannedCar(4,400,"马自达6"));

carList.add(new BothCarry(450,4,2,"皮卡雪6"));

carList.add(new MannedCar(20,800,"金龙"));

carList.add(new Truck(400,4,"松花江"));

carList.add(new Truck(1000,20,"依维河"));

System.out.println("请输入您要租汽车的数量:");

Scanner sr = new Scanner(System.in);

numCarBorrow = sr.nextInt();

int[] carNumList = new int[numCarBorrow];

for(int i=0;i

System.out.println("请输入第" + (i+1) + "辆车的序号:");

if (sr.hasNext()) {

carNumList[i] = sr.nextInt();

}

}

System.out.println("请输入租车天数:");

if (sr.hasNext()) {

dayBorrow = sr.nextInt();

}

sr.close();

StringBuilder manned = new StringBuilder();

int numOfManned = 0;

StringBuilder goods = new StringBuilder();

int numOfGoods = 0;

int totalCost = 0;

for(int i = 0;i < carNumList.length;i++) {

if(carNumList[i]>0 && carNumList[i] < 3 || carNumList[i]==4) {

manned.append(" ");

manned.append(carList.get(carNumList[i]-1).getName());

numOfManned += carList.get(carNumList[i]-1).getPersonNum();

}

else if(carNumList[i]==3) {

manned.append(" ");

manned.append(carList.get(carNumList[i]-1).getName());

goods.append(" ");

goods.append(carList.get(carNumList[i]-1).getName());

numOfManned += carList.get(carNumList[i]-1).getPersonNum();

numOfGoods += carList.get(carNumList[i]-1).getGoodsNum();

}

else {

goods.append(" ");

goods.append(carList.get(carNumList[i]-1).getName());

numOfGoods += carList.get(carNumList[i]-1).getGoodsNum();

}

totalCost += carList.get(carNumList[i]-1).getPrice();

}

//Output

System.out.println("您的账单:\n***可载人的车有:");

System.out.println(manned + " 共载人: " + numOfManned);

System.out.println("***载货的车有:\n" + goods + " 共载货 : " + numOfGoods + "吨");

System.out.println("***租车总价格: " + totalCost * dayBorrow + "元");

}

}

主程序:

package Car;

public class CarSystemTest {

public static void main(String[] args) {

// TODO Auto-generated method stub

CarSystem.beginSystem();

}

}

运行结果：

System.out.println("请输入第" + (i+1) + "辆车的序号:");

if (sr.hasNext()) {

carNumList[i] = sr.nextInt();

}

}

System.out.println("请输入租车天数:");

if (sr.hasNext()) {

dayBorrow = sr.nextInt();

}

sr.close();

StringBuilder manned = new StringBuilder();

int numOfManned = 0;

StringBuilder goods = new StringBuilder();

int numOfGoods = 0;

int totalCost = 0;

for(int i = 0;i < carNumList.length;i++) {

if(carNumList[i]>0 && carNumList[i] < 3 || carNumList[i]==4) {

manned.append(" ");

manned.append(carList.get(carNumList[i]-1).getName());

numOfManned += carList.get(carNumList[i]-1).getPersonNum();

}

else if(carNumList[i]==3) {

manned.append(" ");

manned.append(carList.get(carNumList[i]-1).getName());

goods.append(" ");

goods.append(carList.get(carNumList[i]-1).getName());

numOfManned += carList.get(carNumList[i]-1).getPersonNum();

numOfGoods += carList.get(carNumList[i]-1).getGoodsNum();

}

else {

goods.append(" ");

goods.append(carList.get(carNumList[i]-1).getName());

numOfGoods += carList.get(carNumList[i]-1).getGoodsNum();

}

totalCost += carList.get(carNumList[i]-1).getPrice();

}

//Output

System.out.println("您的账单:\n***可载人的车有:");

System.out.println(manned + " 共载人: " + numOfManned);

System.out.println("***载货的车有:\n" + goods + " 共载货 : " + numOfGoods + "吨");

System.out.println("***租车总价格: " + totalCost * dayBorrow + "元");

}

}

主程序:

package Car;

public class CarSystemTest {

public static void main(String[] args) {

// TODO Auto-generated method stub

CarSystem.beginSystem();

}

}

运行结果：

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