java学习记录

通过半个月的java语言学习，完成一个简单的滴滴租车小demo，都是自己手动输入，跟参考代码的答案基本不一样，但实现思路基本一致；

package project9;
import java.util.Scanner;
// 测试类
public class testClass9 {
    public static void main(String[] args){
        Car[] car ={new LightCar(),new HeavyCar(),new LightPassengerCar(),new HeavyPassengerCar(),new PikaCar()};
        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");
        Scanner input = new Scanner(System.in);
        int isNeedCar = input.nextInt(); //是否要租车
        if(isNeedCar ==0){
            System.out.println("感谢您的使用，欢迎再次光临！");
        }else if(isNeedCar !=0 && isNeedCar!=1){
            System.out.println("您的输入有误，请输入0或者1！");
        }else if(isNeedCar ==1){
            System.out.println("请输入您要租汽车的数量");
            int needCarNum = input.nextInt();
            if(needCarNum>car.length){
                System.out.println("您要租汽车的数量大于本店汽车的数量，请重新输入要租的汽车的数量！");
            }else{
                int[] saveSelectedCarNo = new int[needCarNum];//存储被客服选择组的汽车的下标值集合
                for(int i=1;i<=needCarNum;i++){
                    System.out.println("请输入第"+i+"辆车的序号：");
                    int whichCarNo = input.nextInt(); //某个车的下标值
                    saveSelectedCarNo[i-1] =whichCarNo;
                    }
                System.out.println("您输入租车天数：");
                int needCarDay = input.nextInt(); //租车天数
                System.out.println("您的租车账单：");
                System.out.println("***可载人的车有：");
                int canManned = 0; //可载人的数量总和，初始值设为0
                double canCarryCargo = 0; //可载货物的数量总和，初始值设为0
                double money =0 ; //租车总价格，初始值设为0
                for(int j=0;j<saveSelectedCarNo.length;j++){
                    if(car[saveSelectedCarNo[j]].getCanManned() == true){
                      System.out.print(car[saveSelectedCarNo[j]].getCarName()+"	");
                      canManned = canManned + car[saveSelectedCarNo[j]].getNumberOfPeople();
                      money = money + car[saveSelectedCarNo[j]].getMoney();
                    }
                }
                System.out.println("共载人："+canManned+"人");
                System.out.println("***可载货的车有：");
                for(int k=0;k<saveSelectedCarNo.length;k++){
                    if(car[saveSelectedCarNo[k]].getcanCarryCargo() == true){
                        System.out.print(car[saveSelectedCarNo[k]].getCarName()+"	");
                        canCarryCargo = canCarryCargo + car[saveSelectedCarNo[k]].getVolumeOfCargo();
                        money = money + car[saveSelectedCarNo[k]].getMoney();
                    }
                }
                System.out.println("共载货："+canCarryCargo+"吨");
                System.out.println("租车总价格："+money*needCarDay+"元");

                }
            }
        }

    }

 实现效果如下：