哎。這是我寫的 好吧我承認有抄的 有幾個子類還沒復制
package dadazuche;
import java.util.Scanner;
public class Initail {
public static void main(String[] args) {
Scanner input= new Scanner(System.in);
int rentsum = 0;
int i =0;
StringBuffer ?permessage = new StringBuffer();
StringBuffer ?goodsmessage = new StringBuffer();
int zairenshu=0;
int zaihuoshu=0;
System.out.println("歡迎使用答答租車系統：");
System.out.println("您是否要租車 :1 是 ? ?0 否");
int choose = input.nextInt();
Car cars[]={new Passenger("奧迪A4",500,4),new Passenger("馬自達6",400,4),new Pika("皮卡雪6",450,4,2),new Passenger("金龍",800,20),new Goods("松花江",400,4),new Goods("依維柯",1000,20)};
if(choose==0){
System.out.println("歡迎再次光臨！");
}
if (choose == 1){
System.out.println("您可租車的類型及其價目表：");
}
for(i=0 ;i<cars.length;i++){
System.out.print((i+1)+".\t");
if(cars[i] instanceof Passenger){
System.out.println(cars[i].name+"\t"+cars[i].rent+"元/天"+"\t"+"\t"+"載人："+"\t"+cars[i].person+"人");}
if(cars[i] instanceof Goods){
System.out.println(cars[i].name+"\t"+cars[i].rent+"元/天 "+"\t"+"載貨："+"\t"+cars[i].goods+"噸");}
if(cars[i] instanceof Pika){
System.out.println(cars[i].name+"\t"+cars[i].rent+"元/天"+"\t"+"\t"+"載人："+"\t"+cars[i].person+"人"+"\t載貨："+cars[i].goods+"噸");
}
}
System.out.println("請輸入您要租車的數量：");
int numberday=input.nextInt();
for (i=0;i<numberday;i++){
System.out.println("請輸入第"+(i+1)+"輛車的序號：");
int xuhao = input.nextInt();
xuhao=xuhao-1;
if(cars[xuhao] instanceof Passenger){
rentsum+=cars[xuhao].rent;
permessage.append(cars[xuhao].name+"\t");
zairenshu+=cars[xuhao].person;
}
if(cars[xuhao] instanceof Goods){
rentsum+=cars[xuhao].rent;
goodsmessage.append(cars[xuhao].name+"\t");
zaihuoshu+=cars[xuhao].goods;
}
if(cars[xuhao] instanceof Pika){
rentsum+=cars[xuhao].rent;
permessage.append(cars[xuhao].name+"\t");
zairenshu+=cars[xuhao].person;
zaihuoshu+=cars[xuhao].goods;
}
}
System.out.println("請輸入租車的天數:");
int days=input.nextInt();
System.out.println("您的賬單：");
System.out.println("***可載人的車有：");
System.out.println(permessage+"可載人："+zairenshu+"人");
System.out.println("***可載貨的車有：");
System.out.println(goodsmessage+"可載貨："+zaihuoshu+"噸");
System.out.println("租車的總價格："+rentsum*days);
}
}
2015-08-01
哎 ? ?都是抄的 我只是分析了一下又自己編了一遍?
2015-08-01
Pika 類
package dadazuche;
public class Pika extends Car {
public Pika(String name,int rent ,int person , int goods){
this.name=name;
this.rent = rent ;
this.person=person;
this.goods=goods;
}
}
2015-08-01
Passenger 類
package dadazuche;
public class Passenger extends Car {
public Passenger(String name ,int rent ,int person){
this.name=name;
this.rent=rent;
this.person=person;
}
}
2015-08-01
Goods類
package dadazuche;
public class Goods extends Car {
public Goods(String name,int rent,int goods){
this.name=name;
this.rent=rent;
this.goods=goods;
}
}
2015-08-01
Car 類
package dadazuche;
public class Car {
protected String name;
protected int rent;
protected int person;
protected int goods;
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getRent() {
return rent;
}
public void setRent(int rent) {
this.rent = rent;
}
public int getPerson() {
return person;
}
public void setPerson(int person) {
this.person = person;
}
public int getGoods() {
return goods;
}
public void setGoods(int goods) {
this.goods = goods;
}
}