package exception.test;

import java.util.Scanner;

public class LibrarySystem {

public static void main(String[] args){

LibrarySystem ct=new LibrarySystem();

try{

ct.test();

}catch(Exception e){

e.printStackTrace();

}

try{

ct.test1();

}catch(Exception e){

e.printStackTrace();

}

}  

public void test(){

@SuppressWarnings("resource")

Scanner console = new Scanner(System.in);

int num=console.nextInt();

try{

if(num==1)

System.out.println("1-按照名称来查找图书");

else if(num==2) System.out.println("2-按照序号来查找图书");

}catch(Exception e){

e.printStackTrace();//打印出异常的具体情况

System.out.println("错误命令异常,请重新输入");

}

}

public void test1(){

String [] books={"语文","高数","C语言","英语","化学","计算机"};

@SuppressWarnings("resource")

Scanner console = new Scanner(System.in);

int num=console.nextInt();

try{

if(num==1){

System.out.println("请输入序号来查找图书");

int num1=console.nextInt();

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

if(num1==i){

System.out.println(books[i]);

}

else if(num==2){

System.out.println("请按照名称来查找图书");

String name = console.next();

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

if(name.equals(books[j]))

  System.out.println(books[j]);

}

 }

}

  }

}catch(Exception e){

e.printStackTrace();//打印出异常的具体情况

System.out.println("图书不存在异常,请重新输入");

}

}

}