/*

?* 定義個字符串數組，保存圖書信息

?*

?*/

import java.util.Scanner;

public class BookManeger {

public static void main(String[] args) {

String[] books = {"C語言","計算機網絡","Java數據庫高級教程","編程之美","英語四六級"};

BookManeger myBook = new BookManeger();

Scanner sc = new Scanner(System.in);

while(true){

System.out.println("輸入命令：1-輸入圖書名稱查詢，2-輸入圖書序號查詢");

int m = inputNum();

try{

switch(m){?

case 1:

System.out.println("請輸入圖書名稱:");

String str = (new Scanner(System.in)).next();

myBook.findBooks(str, books);

break;

case 2:

System.out.println("請輸入圖書序號:");

int num = (new Scanner(System.in)).nextInt();

myBook.findBooksName(num, books);

break;

default:

System.out.println("輸入命令錯誤:");

continue;

}

break;

}catch(Exception e){

System.out.println(e.getMessage());

continue;

}

}

}

//輸入圖書名稱進行查詢

public void findBooks(String input,String books[]) throws Exception

{

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

if ( input.equals(books[i]) ){

System.out.println("圖書名稱為:"+books[i]);

return;

}

}

throw new Exception("哈哈，您輸入的書本不存在！！");

}

//輸入圖書序號查詢

public void findBooksName(int input,String books[]) throws Exception

{

if ( input<books.length && input >=0){

System.out.println("對應的圖書為:"+books[input]);

}

else{

throw new Exception("請輸入正確的圖書序號,不存在此序號的圖書");

}

}

public static int inputNum()

{

try {

int k = new Scanner(System.in).nextInt();

return k;

} catch (Exception e) {

// TODO Auto-generated catch block

System.out.println("請按照提示，輸入正確的指令");

int ?k = new Scanner(System.in).nextInt();

return k;

}

}

}