答答租车系统（面向对象综合练习）

答答租车系统（面向对象综合练习）

Time Limit: 1000 msMemory Limit: 65536 KiB

Problem Description

各位面向对象的小伙伴们，在学习了面向对象的核心概念——类的封装、继承、多态之后，答答租车系统开始营运了。

请你充分利用面向对象思想，为公司解决智能租车问题，根据客户选定的车型和租车天数，来计算租车费用，最大载客人数，最大载载重量。

公司现有三种车型（客车、皮卡车、货车），每种车都有名称和租金的属性；其中：客车只能载人，货车只能载货，皮卡车是客货两用车，即可以载人，也可以载货。

下面是答答租车公司的可用车型、容量及价目表：
序号     名称     载客量      载货量        租金
                           （人）     （吨）    （元/天）
  1          A            5                                 800
  2          B            5                                 400
  3          C            5                                 800
  4          D            51                             1300
  5          E            55                             1500
  6          F             5            0.45             500
  7         G             5             2.0               450
  8         H                            3                  200
  9          I                             25              1500
 10        J                             35              2000

要求：根据客户输入的所租车型的序号及天数，计算所能乘载的总人数、货物总数量及租车费用总金额。

Input

首行是一个整数：代表要不要租车 1——要租车（程序继续），0——不租车（程序结束）；

第二行是一个整数，代表要租车的数量N；

接下来是N行数据，每行2个整数m和n，其中：m表示要租车的编号，n表示租用该车型的天数。

Output

若成功租车，则输出一行数据，数据间有一个空格，含义为：

载客总人数 载货总重量（保留2位小数） 租车金额（整数）

若不租车，则输出： 

0 0.00 0（含义同上）

Sample Input

1
2
1 1
2 2

Sample Output

15 0.00 1600

Hint

 

Source

zhouxq    

import java.util.Scanner;
public class Main {

	public static void main(String[] args) {
		Scanner input = new Scanner(System.in);
		int t;
		int i, d, n;
		while(input.hasNext()) {
			t = input.nextInt();
			if(t == 0) {
                            System.out.println("0 0.00 0");				
                            break;
			}
			else if(t == 1){
				customus cu= new customus();
				customus sum = new customus();
				n = input.nextInt();
				while(n != 0) {
					n--;
					i = input.nextInt();
					d = input.nextInt();
					Dada da = new Dada();
					cu = da.th(i, d);
					sum = customus.cal(cu, sum);
				}
				customus.show(sum);
			}
		}
	}
}
class Car {
   int id;
   int people;
   double thing;
   int rent;
   Car(int id, int people, double thing, int rent){
	   this.id = id;
	   this.people = people;
	   this.thing = thing;
	   this.rent = rent;
   }
}
 class customus {
  double things;
  int people;
  int rents;
  customus(){
	 things = 0;
	 people = 0;
	 rents = 0;
  }
  static customus cal(customus cu, customus sum) {
	  sum.things += cu.things;
	  sum.people += cu.people;
	  sum.rents += cu.rents;
	  return sum;
  }
  static void show(customus sum) {
	  System.out.printf("%d %.2f %d", sum.people, sum.things, sum.rents);
  }
}
class Dada {
     Car A = new Car(1, 5, 0, 800);
     Car B = new Car(2, 5, 0, 400);
     Car C = new Car(3, 5, 0, 800);
     Car D = new Car(4, 51, 0, 1300);
     Car E = new Car(5, 55, 0, 1500);
     Car F = new Car(6, 5, 0.45, 500);
     Car G = new Car(7, 5, 2.0, 450);
     Car H = new Car(8, 0, 3, 200);
     Car I = new Car(9, 0, 25, 1500);
     Car J = new Car(10, 0, 35, 2000);
     customus th(int x, int y){
    	 customus su = new customus();
    	 switch(x) {
    	 case 1: su.things = A.thing * y; su.people = A.people * y; su.rents = A.rent*y;return su;
    	 case 2: su.things = B.thing * y; su.people = B.people * y; su.rents = B.rent*y;return su;
    	 case 3: su.things = C.thing * y; su.people = C.people * y; su.rents = C.rent*y;return su;
    	 case 4: su.things = D.thing * y; su.people = D.people * y; su.rents = D.rent*y;return su;
    	 case 5: su.things = E.thing * y; su.people = E.people * y; su.rents = E.rent*y;return su;
    	 case 6: su.things = F.thing * y; su.people = F.people * y; su.rents = F.rent*y;return su;
    	 case 7: su.things = G.thing * y; su.people = G.people * y; su.rents = G.rent*y;return su;
    	 case 8: su.things = H.thing * y; su.people = H.people * y; su.rents = H.rent*y;return su;
    	 case 9: su.things = I.thing * y; su.people = I.people * y; su.rents = I.rent*y;return su;
    	 case 10: su.things = J.thing * y; su.people = J.people * y; su.rents =J.rent*y;return su;
    	 }
    	 return su;
     }
}