在输入1或者2可以执行了，那如果输入3，就是指令有误，重新输入怎么写？输入其他抛出异常后，再次重新输入呢？还有如果后面选择2取消，返回到System.out.println("-----下面是您可选择的车型和价格表-----");这里，怎么写？package imooc;import java.util.InputMismatchException;import java.util.Scanner;public class Leased { public static void main(String[] args) { System.out.println("欢迎使用哒哒租车"); Scanner sc = new Scanner(System.in); System.out.println("是否租车：1.租车2.不租车"); try{ int input = sc.nextInt(); if (input==1) { System.out.println("-----下面是您可选择的车型和价格表-----"); System.out.println("序号\t汽车名称\t租金\t载客量\t载货量"); Car[] carsForRent = { new Minibus("奥迪A4", 500, 4), new Mazda("马自达6", 400, 4), new Pickup("皮卡雪6", 450, 4, 2), new Jinlong("金龙", 800, 20), new Songhua("松花江", 400, 4), new Ivecoa("依维柯", 1000, 20) }; for (Car currentCar : carsForRent) { if (currentCar instanceof Minibus) { System.out.println("" + 1 + "\t" + currentCar.getModel() + "" + "\t" + currentCar.getRent() + "元/天" + "\t" + currentCar.getCapacity() + "人"); } if (currentCar instanceof Mazda) { System.out.println("" + 2 + "\t" + currentCar.getModel() + "" + "\t" + currentCar.getRent() + "元/天" + "\t" + currentCar.getCapacity() + "人"); } if (currentCar instanceof Pickup) { System.out.println("" + 3 + "\t" + currentCar.getModel() + "" + "\t" + currentCar.getRent() + "元/天" + "\t" + currentCar.getCapacity() + "人" + "\t" + currentCar.getCargo() + "吨"); } if (currentCar instanceof Jinlong) { System.out.println("" + 4 + "\t" + currentCar.getModel() + "" + "\t" + currentCar.getRent() + "元/天" + "\t" + currentCar.getCapacity() + "人"); } if (currentCar instanceof Songhua) { System.out.println("" + 5 + "\t" + currentCar.getModel() + "" + "\t" + currentCar.getRent() + "元/天" + "\t" + "" + "\t" + currentCar.getCargo() + "吨"); } if (currentCar instanceof Ivecoa) { System.out.println("" + 6 + "\t" + currentCar.getModel() + "" + "\t" + currentCar.getRent() + "元/天" + "\t" + "" + "\t" + currentCar.getCargo() + "吨"); } } System.out.println("请输入你所选择车型所对应的序号"); String input1 = sc.next(); switch (input1) { case "1": System.out.println("你所选择的车型是：" + carsForRent[0].getModel() + "" + "每日租金为：" + carsForRent[0].getRent() + "元" + "" + "载客量：" + carsForRent[0].getCapacity() + "人"); break; case "2": System.out.println("你所选择的车型是：" + carsForRent[1].getModel() + "" + "每日租金为：" + carsForRent[1].getRent() + "元" + "" + "载客量：" + carsForRent[1].getCapacity() + "人"); break; case "3": System.out.println("你所选择的车型是：" + carsForRent[2].getModel() + "" + "每日租金为：" + carsForRent[2].getRent() + "元" + "" + "载客量：" + carsForRent[2].getCapacity() + "人" + "" + "载货量：" + carsForRent[2].getCargo() + "吨"); break; case "4": System.out.println("你所选择的车型是：" + carsForRent[3].getModel() + "" + "每日租金为：" + carsForRent[3].getRent() + "元" + "" + "载客量：" + carsForRent[3].getCapacity() + "人"); break; case "5": System.out.println("你所选择的车型是：" + carsForRent[4].getModel() + "" + "每日租金为：" + carsForRent[4].getRent() + "元" + "" + "载货量：" + carsForRent[4].getCargo() + "吨"); break; case "6": System.out.println("你所选择的车型是：" + carsForRent[5].getModel() + "" + "每日租金为：" + carsForRent[5].getRent() + "元" + "" + "载货量：" + carsForRent[5].getCargo() + "吨"); break; } System.out.println("请输入您要出租的天数"); int i = sc.nextInt(); if (i > 0 || i < 365) { System.out.println("您要出租" + i + "天"); } System.out.println("是否确认：1.确认2.取消"); String input2 = sc.next(); if (input2.equals("1")) { System.out.println("租车成功，欢迎再次光临！"); } else { System.out.println("租车失败，谢谢使用哒哒租车！"); } }else if(input==2){ System.out.println("谢谢使用哒哒租车,再见");}else{ System.out.println("您输入的指令有误，请重新输入"); } }catch(InputMismatchException e){ System.out.println("指令有误，您只能输入1或者2"); }} }
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