package practise;

import java.util.InputMismatchException;

import java.util.Scanner;

public class BorrowBook {

????public static void main(String[] args) {

????????BorrowBook borrowBook=new BorrowBook();

????????borrowBook.borrow();

????}

????public void borrow() {

????????System.out.println("輸入命令:1-按照名稱查找圖書；2-按照序號(hào)查找圖書");

????????Scanner sc1=new Scanner(System.in);

????????try {

????????? ??int num=sc1.nextInt();

????????????if(num==1) {

????????????bookname();

????????????}else if(num==2) {

????????????booknum();

????????????}

????????????sc1.close();

????????}catch(Exception e) {

????????????System.out.println("命令輸入錯(cuò)誤，請(qǐng)根據(jù)提示輸入數(shù)字命令!");

????????????borrow();

????????}

????}

????public void bookname(){

????????String[] books= {"高數(shù)","數(shù)據(jù)結(jié)構(gòu)"};

????????System.out.println("輸入圖書名稱:");

????????Scanner sc1=new Scanner(System.in);

????????String str1=sc1.nextLine();

????????try {

????????????for(int i=0;i<=books.length;i++) {

????????????????if(books[i].equals(str1)) {

????????????????????System.out.println("book:"+str1);

????????????????????break;

????????????????}

????????????}

????????}catch(Exception e) {

????????????System.out.println("圖書不存在!");

????????????borrow();

????????}

????????sc1.close();

????}

????public void booknum() {

????????String[] books= {"高數(shù)","數(shù)據(jù)結(jié)構(gòu)"};

????????System.out.println("輸入圖書序號(hào):");

????????Scanner sc1=new Scanner(System.in);

????????try {

????????????int num=sc1.nextInt();

????????????System.out.println("book:"+books[num-1]);

????????}catch(InputMismatchException e) {

????????????System.out.println("命令輸入錯(cuò)誤，請(qǐng)根據(jù)提示輸入數(shù)字命令!");

????????????booknum();

????????}catch(Exception e) {

????????????System.out.println("圖書不存在!");

????????????borrow();

????????}

????????sc1.close();

}

}