同学们，帮我看看程序啦T T
import java.util.Scanner;
class Car{
private int carNumber;//车的编号
private String carName;//车名
private int carRentMoney;//租金
private int peoCapa;//载客量
private double goodCapa;//载货量
public int getCarNumber() {
return carNumber;
}
public void setCarNumber(int carNumber) {
this.carNumber = carNumber;
}
public String getCarName() {
return carName;
}
public void setCarName(String carName) {
this.carName = carName;
}
public int getCarRentMoney() {
return carRentMoney;
}
public void setCarRentMoney(int carRentMoney) {
this.carRentMoney = carRentMoney;
}
public int getPeoCapa() {
return peoCapa;
}
public void setPeoCapa(int peoCapa) {
this.peoCapa = peoCapa;
}
public double getGoodCapa() {
return goodCapa;
}
public void setGoodCapa(double goodCapa) {
this.goodCapa = goodCapa;
}
}
class Truck extends Car
{
//构造代码块，为属性赋值
{
setCarNumber(5);setCarName("松花江");setCarRentMoney(400);setGoodCapa(4);
}
int carNumber1 = getCarNumber();String carName1 = getCarName();
int carRentMoney1 = getCarRentMoney();double goodCapa1 = getGoodCapa();
{
setCarNumber(6);setCarName("依维河");setCarRentMoney(1000);setGoodCapa(20);
}
int carNumber2 = getCarNumber();String carName2 = getCarName();
int carRentMoney2 = getCarRentMoney();double goodCapa2 = getGoodCapa();
}
class PiKup extends Car
{
{
setCarNumber(3);setCarName("皮卡雪6");setCarRentMoney(400);setPeoCapa(4);setGoodCapa(2);
}
int carNumber1 = getCarNumber();String carName1 = getCarName();
int carRentMoney1 = getCarRentMoney();double goodCapa1 = getGoodCapa();int peoCapa1 = getPeoCapa();
}
class PassengerCar extends Car
{
{
setCarNumber(1);setCarName("奥迪A4");setCarRentMoney(500);setPeoCapa(4);
}
int carNumber1 = getCarNumber();String carName1 = getCarName();
int carRentMoney1 = getCarRentMoney();int peoCapa1 = getPeoCapa();
{
setCarNumber(2);setCarName("马自达");setCarRentMoney(400);setPeoCapa(4);
}
int carNumber2 = getCarNumber();String carName2 = getCarName();
int carRentMoney2 = getCarRentMoney();int peoCapa2 = getPeoCapa();
{
setCarNumber(4);setCarName("金龙");setCarRentMoney(800);setPeoCapa(20);
}
int carNumber3 = getCarNumber();String carName3 = getCarName();
int carRentMoney3 = getCarRentMoney();int peoCapa3 = getPeoCapa();
}
class RentCarTest
{
public static void main(String[] args)
{
Scanner sc = new Scanner(System.in);
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");
int x = sc.nextInt();
if(x==0){
System.out.println("欢迎下次使用");
}else if(x==1){
Truck t = new Truck();
PiKup p = new PiKup();
PassengerCar pa = new PassengerCar();
//顾客选择页面显示
System.out.println("您可租车的类型及其价目表如下：");
System.out.println("序号"+" 汽车名称"+" 租金"+" 容量");
System.out.println(pa.carNumber1+". "+pa.carName1+" "+pa.carRentMoney1+"元/天"+" 载人："+pa.peoCapa1+"人");
System.out.println(pa.carNumber2+". "+pa.carName2+" "+pa.carRentMoney2+"元/天"+" 载人："+pa.peoCapa2+"人");
System.out.println(p.carNumber1+". "+p.carName1+" "+p.carRentMoney1+"元/天"+" 载人："+p.peoCapa1+"人"+" 载货："+p.goodCapa1+"吨");
System.out.println(pa.carNumber3+". "+pa.carName3+" "+pa.carRentMoney3+"元/天"+" 载人："+pa.peoCapa3+"人");
System.out.println(t.carNumber1+". "+t.carName1+" "+t.carRentMoney1+"元/天"+" 载人："+t.goodCapa1+"吨");
System.out.println(t.carNumber2+". "+t.carName2+" "+t.carRentMoney2+"元/天"+" 载人："+t.goodCapa2+"吨");
System.out.println("请输入您要租车的数量：");
int y=sc.nextInt();
int[] array = new int[y];
for (int i=0;i<y ;i++ )
{
System.out.println("请输入第"+(i+1)+"辆汽车的序号(1——6)：");
int ar = sc.nextInt();
if(ar<1||ar>6){
System.out.println("您输入的序号不在列表范围内，请重新输入序号：");
array[i] = sc.nextInt();
}else{
array[i] = ar;
}
}
System.out.println("请输入您要租车的天数：");
int day = sc.nextInt();
//生成账单
int sumMoney = 0;//总金额
int sumPeoCapa = 0;//载客量
double sumGoodCapa = 0;//载货量
for (int i=0;i<y ;i++ )
{
switch(array[i])
{
case 1:
sumMoney +=pa.carRentMoney1*day;
sumPeoCapa +=pa.peoCapa1;
break;
case 2:
sumMoney +=pa.carRentMoney2*day;
sumPeoCapa +=pa.peoCapa2;
break;
case 3:
sumMoney +=p.carRentMoney1*day;
sumPeoCapa +=p.peoCapa1;
sumGoodCapa +=p.goodCapa1;
break;
case 4:
sumMoney +=pa.carRentMoney3*day;
sumPeoCapa +=pa.peoCapa3;
break;
case 5:
sumMoney +=t.carRentMoney1*day;
sumGoodCapa +=t.goodCapa1;
break;
case 6:
sumMoney +=t.carRentMoney2*day;
sumGoodCapa +=t.goodCapa2;
break;
default:
break;
}
}
System.out.println("您的账单如下：");
System.out.println("您租车所需的总金额是："+sumMoney);
System.out.println("您租的汽车一共可以载"+sumPeoCapa+"人、"+sumGoodCapa+"吨货");
}
}
}写了代码，但是在写的时候，不太清楚父类和子类一般应该写什么内容，所以就在父类里面定义了汽车的属性，各个子类中为属性赋值，最终还是通过创建子类对象来访问的属性。其他的内容都是在main方法中写的。感觉没有发挥继承的优势，大家给点建议呢。
