研究了两天的代码，求大神指点
//父类
package com.tow;
public abstract class Car {
int number;
String name;
float price;
public Car(int number,String name,float price){
this.number=number;
this.name=name;
this.price=price;
}
@Override
public String toString() {
return number+"\t"+name+"\t"+price+"\n";
}
public int getCarcapacity() {
// TODO Auto-generated method stub
return 0;
}
public int getTrackcapacity() {
// TODO Auto-generated method stub
return 0;
}
}
//子类1
package com.tow;
public class Cars extends Car {
private int Carcapacity;
public Cars(int number, String name, float price,int Carcapacity) {
super(number, name, price);
this.setCarcapacity(Carcapacity);
// TODO Auto-generated constructor stub
}
public int getCarcapacity() {
return Carcapacity;
}
public void setCarcapacity(int carcapacity) {
Carcapacity = carcapacity;
}
@Override
public String toString() {
return number+"\t"+name+"\t"+price+"\t\t"+Carcapacity+"\n";
}
}
//子类2
package com.tow;
public class Track extends Car {
private int Trackcapacity;
public Track(int number, String name, float price,int Trackcapacity) {
super(number, name, price);
this.setTrackcapacity(Trackcapacity);
// TODO Auto-generated constructor stub
}
public int getTrackcapacity() {
return Trackcapacity;
}
public void setTrackcapacity(int trackcapacity) {
Trackcapacity = trackcapacity;
}
@Override
public String toString() {
return number+"\t"+name+"\t"+price+"\t\t\t"+Trackcapacity+"\n";
}
}
//子类3
package com.tow;
public class Pickup extends Car {
private int Carcapacity;
private int Trackcapacity;
public Pickup(int number, String name, float price,int Carcapacity,int Trackcapacity) {
super(number, name, price);
this.setCarcapacity(Carcapacity);
this.setTrackcapacity(Trackcapacity);
// TODO Auto-generated constructor stub
}
public int getCarcapacity() {
return Carcapacity;
}
public void setCarcapacity(int carcapacity) {
Carcapacity = carcapacity;
}
public int getTrackcapacity() {
return Trackcapacity;
}
public void setTrackcapacity(int trackcapacity) {
Trackcapacity = trackcapacity;
}
@Override
public String toString() {
return number+"\t"+name+"\t"+price+"\t\t"+Carcapacity+"\t"+Trackcapacity+"\n";
}
}
//测试类
package com.tow;
import java.util.*;
public class Initail {
public static void main(String[] args) {
// TODO Auto-generated method stub
@SuppressWarnings("resource")
Scanner input=new Scanner (System.in);
System.out.println("##欢迎使用DADA租车系统##");
System.out.println("请问您是否租车：1.是，2.否");
int choice=input.nextInt();
switch(choice){
case 1:
System.out.println("下面是租车信息：");
System.out.println("序号"+"\t"+"车型"+"\t"+"单价(天/元)"+"\t"+"载客以及载货量(t)");
Car[] news=new Car[5];
news[0]=new Cars(1,"奥迪A8",800,5);
news[1]=new Cars(2,"金龙大巴",700,50);
news[2]=new Track(3,"金杯",400,45);
news[3]=new Track(4,"东风悦达",650,70);
news[4]=new Pickup(5,"皮卡",500,4,60);
System.out.println(Arrays.toString(news));
System.out.print("请您输入租赁天数：");
int day=input.nextInt();
System.out.println("租用："+day+"天");
System.out.println("请您根据车型序号选择车型，输入“8”结束");
int[] rent=new int[6];
for(int i=1;i<6;i++){
System.out.print("请输入您要选择的车型：");
int score1=input.nextInt();
if(score1==8){
break;
}else{
System.out.print("请输入您要组的数量：");
int score2=input.nextInt();
float sum=news[score1-1].price*day;
System.out.println("车型:"+news[score1-1].name+"\t"+score2+"辆"+"\t"+"合计"+sum+"元");
float sum2=0;
sum2=sum+sum2;
System.out.println("总计："+sum2);
rent[score1]=score2;
}
}
System.out.println("如下是您的租车信息，请您核对：");
float sum=0;
for(int i=0;i<6;i++){
if(rent[i]!=0){
System.out.println(news[i-1].name+"：\t"+rent[i]+"辆"+"\t"+"单价（元/天）："+rent[i]*news[i-1].price+"\t\t"+"载客量:"+"\t"+rent[i]*news[i-1].getCarcapacity()+"人"+
"\t"+"载重量："+rent[i]*news[i-1].getTrackcapacity()+"吨"+"\t"+"合计："+rent[i]*(rent[i]*news[i-1].price)*day+"元");
sum+=rent[i]*rent[i]*news[i-1].price*day;
}
}
System.out.println("租车总费用："+sum+"元");
break;
case 2:
System.out.println("欢迎使用，再见！");
break;
default:
System.out.println("您的输入有误，请重新输入！");
}
}
}
