Java怎么实现答答租车系统
这篇文章主要介绍Java怎么实现答答租车系统,文中介绍的非常详细,具有一定的参考价值,感兴趣的小伙伴们一定要看完!
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具体内容如下
项目需求:
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基本界面需求:
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and:
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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, String 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 getUserInput() {
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;i0 && 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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