阿米尔汗
2015-01-01 20:36
import java.util.*; /** @pdOid 96931d41-3c38-42f7-8656-38660e3a35d0 */ public abstract class Car { /** @pdOid 010597b9-b9a3-4aeb-b2db-0aa391df8bc9 */ protected String carName; /** @pdOid 799c73bc-a09f-4171-8262-823d0a847312 */ protected double rents; /** @pdOid a68a358b-d4b0-4133-bf22-b9d2e5e9e00b */ protected String carType; /** @pdOid 254aa617-8fbb-4cf7-86d2-0d462097b100 */ protected String capicity; public Car(String carname2, int rents2) { // TODO Auto-generated constructor stub this.carName = carname2; this.rents = rents2; } } /*********************************************************************** * Module: PassengerCar.java * Author: 鏂颁竴 * Purpose: Defines the Class PassengerCar ***********************************************************************/ import java.util.*; /** @pdOid 09d2dd0e-1caa-4942-8951-3dda86db4488 */ public class PassengerCar extends Car { public PassengerCar(String carname,int rents,int capicity) { super(carname,rents); if(capicity<5) this.carType="小汽车"; else{ this.carType="大客车"; } this.capicity = capicity+"人/辆"; } } /*********************************************************************** * Module: Truck.java * Author: 鏂颁竴 * Purpose: Defines the Class Truck ***********************************************************************/ import java.util.*; /** @pdOid fbb53fc2-6c0d-47e4-910c-be9b4bea4572 */ public class Truck extends Car { public Truck(String carname,int rents,int capicity) { super(carname,rents); if(capicity<5) { this.carType="轻型货车"; } else{ this.carType="重型货车"; } this.capicity = capicity+"吨/辆"; } } /*********************************************************************** * Module: PickUp.java * Author: 鏂颁竴 * Purpose: Defines the Class PickUp ***********************************************************************/ import java.util.*; /** @pdOid 4e005cc0-5b4a-4cc2-b76f-2778450ec85a */ public class PickUp extends Car { /** @pdOid b0eccce9-6d5f-4d14-919d-d254fa432565 */ private int goodsCapicity; /** @pdOid 1e0ee642-507d-4e5d-bc3d-09838a2e15c0 */ private int passengerCapicity; public PickUp(String carname,int rents,int pcapicity,int gcapicity) { super(carname,rents); this.carType = "皮卡"; this.goodsCapicity = gcapicity; this.passengerCapicity = pcapicity; this.capicity = "载客:"+pcapicity+"人/辆 载货:"+gcapicity+"吨/辆 "; } } //主函数所在类 import java.util.Scanner; public class InitialClass { public static void main(String[] args) { // TODO Auto-generated method stub System.out.println("请问您要租车吗?是按1,否按0"); Scanner sc = new Scanner(System.in); int i; do { System.out.print("请输入:"); i = sc.nextInt(); if(0 == i){ System.out.print("您已退出程序!"); return; //不租车,程序返回 } else if (1 == i){ Car[] AllCars = {new Truck("解放",1000,15),new Truck("奔驰卡车",800,4),new Truck("金杯",900,10),new PassengerCar("宝马",1000,5),new PassengerCar("Smart",657,2),new PassengerCar("Mini",650,4),new PickUp("东风皮卡",500,5,5)}; System.out.println("以下是可供选择的车型:"); System.out.printf("%-15s%-15s%-15s%-15s%-15s\n","选车","车名","类型","租金","容量"); for(int j=0;j<AllCars.length;j++) { System.out.printf("%-15s%-15s%-15s%-15s%-15s\n",j+1,AllCars[j].carName,AllCars[j].carType,AllCars[j].rents,AllCars[j].capicity); } System.out.print("您准备租几梁车?"); int num = sc.nextInt(); int[] carnum = new int[num];//存放车的编号 int[] days = new int[num]; double allrents=0;//总费用 for(int ii=0;ii<num;ii++){ System.out.print("请输入车的编号:"); carnum[ii] = sc.nextInt(); System.out.println(); System.out.println("请输入该车租用的天数:"); days[ii] = sc.nextInt(); allrents += AllCars[carnum[ii]-1].rents * days[ii]; } System.out.println("您的订单为:"); System.out.printf("%-15s%-15s%-15s%-15s%-15s%-15s%-15s\n","编号","车名","类型","租金","容量","租借天数","该车租费"); for(int j=0;j<num;j++) { System.out.printf("%-15s%-15s%-15s%-15s%-15s%-15s%-15s\n",carnum[j],AllCars[carnum[j]-1].carName,AllCars[carnum[j]-1].carType,AllCars[carnum[j]-1].rents,AllCars[carnum[j]-1].capicity,days[j],AllCars[carnum[j]-1].rents * days[j]); } System.out.print("总费用为:"+allrents); } else{ System.out.println("请输入正确数字"); } }while(i!=0&&i!=1); } }
int型数据格式化建议使用%d, double型数据格式化建议使用%f
Java入门第二季 升级版
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