感觉主体臃肿，结构不够好，希望大家指教。
Et9
2016-06-16 11:12
package com.imooc.dada;
//父类
public abstract class Aotu {
public String name;
public float price;
public int manned;
public float cargo;
//public int number;
public abstract void run();
}
package com.imooc.dada;
//其中一子类
public class Aodi extends Aotu {
@Override
public void run() {
// TODO Auto-generated method stub
}
Aodi(){
name = "奥迪A4 ";
price = 500;
manned = 4;
cargo = 0;
}
}
package com.imooc.dada;
import java.util.Scanner;
//主程序入口
public class Dada {
public static void main(String[] args) {
// TODO Auto-generated method stub
Scanner input = new Scanner(System.in);
int inputbuf = 0; //输入缓存
int[] inputData; //用户输入数据
float allMoney = 0; //总金额
int day = 0; //天数
String[] takePerson; //载人车名
String[] takeGoods; //载货车名
int loadNumber = 0; //总载人数
float ladenNumber = 0; //总载货数
//创建各个对象
Aotu aodi = new Aodi();
Aotu mazida = new Mazida();
Aotu pikaxue = new Pikaxue();
Aotu jinlon = new Jinlon();
Aotu songhuajiang = new Songhuajiang();
Aotu yiweike = new Yiweike();
//租车流程开始
System.out.println("欢迎使用答答租车系统：");
System.out.println("您是否要搭车：1是 0否");
inputbuf = input.nextInt();
if(inputbuf == 1){
//打印车辆信息
System.out.println("您可租车的类型和价格表：");
System.out.println("序号 汽车名称 租金 容量");
System.out.println("1、 "+aodi.name+aodi.price+"元/天"+" "+"载人："+aodi.manned+"人"+" "+"载货："+aodi.cargo+"吨");
System.out.println("2、 "+mazida.name+mazida.price+"元/天"+" "+"载人："+mazida.manned+"人"+" "+"载货："+mazida.cargo+"吨");
System.out.println("3、 "+pikaxue.name+pikaxue.price+"元/天"+" "+"载人："+pikaxue.manned+"人"+" "+"载货："+pikaxue.cargo+"吨");
System.out.println("4、 "+jinlon.name+jinlon.price+"元/天"+" "+"载人："+jinlon.manned+"人"+" "+"载货："+jinlon.cargo+"吨");
System.out.println("5、 "+songhuajiang.name+songhuajiang.price+"元/天"+" "+"载人："+songhuajiang.manned+"人"+" "+"载货："+songhuajiang.cargo+"吨");
System.out.println("6、 "+yiweike.name+yiweike.price+"元/天"+" "+"载人："+yiweike.manned+"人"+" "+"载货："+yiweike.cargo+"吨");
System.out.println("");
//用户输入
System.out.println("请输入您要租车的数量：");
inputbuf = input.nextInt();
inputData = new int[inputbuf];
takeGoods = new String[inputbuf];
takePerson = new String[inputbuf];
//用户输入车序号
for(int i = 0;i < inputbuf;i++){
System.out.println("请输入第"+(i+1)+"辆车的序号：");
inputData[i] = input.nextInt();
}
System.out.println("请输入租车天数：");
day = input.nextInt();
input.close();
//清空数据
allMoney = 0;
ladenNumber = 0;
loadNumber = 0;
for(int i = 0,j = 0,z = 0;i < inputData.length;i++){
//计算总载人数和总载货数，获取载人车名和载货车名
switch(inputData[i]){
case 1: allMoney = allMoney + aodi.price*day;
loadNumber = loadNumber + aodi.manned;
takePerson[j] = aodi.name;
j++;
break;
case 2: allMoney = allMoney + mazida.price*day;
loadNumber = loadNumber + mazida.manned;
takePerson[j] = mazida.name;
j++;
break;
case 3: allMoney = allMoney + pikaxue.price*day;
loadNumber = loadNumber + pikaxue.manned;
ladenNumber = ladenNumber + pikaxue.cargo;
takePerson[j] = pikaxue.name;
takeGoods[z] = pikaxue.name;
z++;
j++;
break;
case 4: allMoney = allMoney + jinlon.price*day;
loadNumber = loadNumber + jinlon.manned;
takePerson[j] = jinlon.name;
j++;
break;
case 5: allMoney = allMoney + songhuajiang.price*day;
ladenNumber = ladenNumber + songhuajiang.cargo;
takeGoods[z] = pikaxue.name;
z++;
break;
case 6: allMoney = allMoney + yiweike.price*day;
ladenNumber = ladenNumber + pikaxue.cargo;
takeGoods[z] = pikaxue.name;
z++;
break;
default:
}
}
//打印账单
System.out.println("您的帐单：");
System.out.println("***可载人的车有：");
for(String s:takePerson){
if(s != null){
System.out.print(s + " ");
}
}
System.out.println("共载人：" + loadNumber + "人");
System.out.println("***载货的车有：");
for(String s:takeGoods){
if(s != null){
System.out.print(s + " ");
}
}
System.out.println("共载货：" + ladenNumber + "吨");
System.out.println("租车总价钱：" + allMoney);
}else{
System.out.println("再见！");
}
}
}3回答
-
- rescue_rong
- 2016-06-16 19:27:26
package diDiDaChe;
public class Car {
private double money;
private String name;
public Car(String name,double money){
this.money=money;
this.name=name;
}
public void setMoney(double money){
this.money=money;
};
public double getMoney(){
return money;
};
public String getName(){
return name;
};
}
package diDiDaChe;
public class MannedCar extends Car{
static int baseMoney=1000;
private int manned;
public MannedCar(String name,double money,int manned){
super(name,money);
this.manned=manned;
}
public void setManned(int manned){
this.manned=manned;
};
public int getManned(){
return manned;
}
}
package diDiDaChe;
public class Truck extends Car{
//载货量
static int baseMoney=2000;
private int container;
public Truck(String name,double money,int container){
super(name,money);
this.container=container;
}
public void setContainer(int container){
this.container=container;
};
public int getContainer(){
return container;
}
}
package diDiDaChe;
import java.util.InputMismatchException;
import java.util.Scanner;
public class DiDi {
double sumMoney=0;
MannedCar Aodi=new MannedCar("奥迪",500,4);
MannedCar Bingli=new MannedCar("宾利",1000,6);
MannedCar WuLi=new MannedCar("五菱之光",200,12);
MannedCar BMW=new MannedCar("宝马",800,4);
Truck DF=new Truck("东风",1000,40);
Truck DZ=new Truck("大众",800,30);
Truck FT=new Truck("丰田",500,20);
MannedCar[] mannedCar={Aodi,Bingli,WuLi,BMW};
Truck[] truck={DF,DZ,FT};
public double canMoney(Car car,int day){
if(car instanceof MannedCar){
sumMoney=day*car.getMoney()+Truck.baseMoney;
}else{
sumMoney=day*car.getMoney()+MannedCar.baseMoney;
}
return sumMoney;
}
public static int inputDay(){
System.out.println("请输入要租的天数");
Scanner sc=new Scanner(System.in);
sc.useDelimiter("\n");
String s=sc.next();
int k=Integer.parseInt(s.trim());
return k;
}
public Car outPutCar(int i){
if(i==1){
System.out.println("轿车品牌"+" "+"每天单价"+" 载人量");
for(int j=0;j<mannedCar.length;j++){
System.out.println(j+1+mannedCar[j].getName()+mannedCar[j].getMoney()+mannedCar[j].getManned());
}
System.out.println("请输入所需轿车的编号");
Scanner sc=new Scanner(System.in);
sc.useDelimiter("\n");
String s=sc.next();
int k=Integer.parseInt(s.trim());
if(k<0||k>=mannedCar.length){
System.out.println("没有这辆车请重新输入一遍");
outPutCar(i);
}
return mannedCar[k];
}else{
System.out.println("卡车品牌"+" "+"每天单价"+" 载货量");
for(int j=0;j<truck.length;j++){
System.out.println(j+1+truck[j].getName()+truck[j].getMoney()+truck[j].getContainer());
}
System.out.println("请输入所需卡车的编号");
Scanner sc=new Scanner(System.in);
sc.useDelimiter("\n");
String s=sc.next();
int k=Integer.parseInt(s.trim());
if(k<0||k>=truck.length){
System.out.println("没有这辆车请重新输入一遍");
outPutCar(i);
}
return truck[k];
}
}
public static int decideCar(){
System.out.println("请选择载货或载人，载货请输1,载人请输2,并以回车结束");
Scanner sc=new Scanner(System.in);
sc.useDelimiter("\n");
String s=sc.next();
int i=Integer.parseInt(s.trim());
if(i!=1&&i!=2){
System.out.println("输入错误请重新输入");
decideCar();
}
return i;
}
public static void main(String[] args){
DiDi didi=new DiDi();
int i=decideCar();
Car car=didi.outPutCar(i);
int k=inputDay();
System.out.println(car.getName()+"车租用"+k+"天的价格是1"+didi.canMoney(car,k));
}
}
-
- rescue_rong
- 2016-06-16 19:21:40
你看把车型放在一个引用数组里面，用的时候调用，是不是可以减少代码量。这样的话，包括你的打印车辆信息以及switch选择部分都可以减少一大段代码量。
-
- qq_不拉不拉_03377968
- 2016-06-16 16:23:56
打印车辆信息部分添加父类方法，传不同车型打印不同信息。下面case中也在父类定义一个方法，分别传入不同值，计算出不同数据。
（拙见，也是新手）
Java入门第二季
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