package com.imooc.books;

import java.util.Scanner;

public class books {

public static void main(String[] args){

String[] books = {

"高数","语文","英语","政治"

};

Scanner input = new Scanner(System.in);

System.out.println("******图书查询系统******");

while(true){

try{

System.out.println("输入命令：1-按照名查找图书；2-按照序号查找图书;3-退出");

int x = input.nextInt();

if(x == 1){

String bookName = input.next();

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

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

System.out.println("book:" + books[i]);

break;

}

if(i == books.length-1)

System.out.println("您查找的图书不存在，请重新输入");

}

}

else if(x == 2){

int number = input.nextInt();

if(number <= books.length){

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

}

else{

System.out.println("您查找的图书不存在，请重新输入");

}

}

else if(x == 3){

System.out.println("Bye!");

break;

}

else{

System.out.println("输入有误请根据提示输入数字");

}

}catch(Exception e){

System.out.println("命令输入错误!");

input.nextLine();

continue;

}

}

}

}