import java.util.*;

public class booktest{

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

String[] bname={"高等數(shù)學","計算機","口語","Java","c++"};

System.out.println("請輸入書名或圖書序號！");

System.out.println("請選擇 1書名 ? 0 序號");

Scanner s=new Scanner(System.in);

w:for(;;){

int a=s.nextInt();

if(a==1)

{

System.out.println("請輸入書名：");

String a1=s.next();

for(String b:bname)

{if(b.equals(a1))

{System.out.println("存在");

continue w;}}

//else

System.out.println("不存在");

}else if(a==0)

{

System.out.println("請輸入序號：");

try {

int a2=s.nextInt();

if(a2>=0 && a2<bname.length){

for(String b:bname)

{System.out.println(bname[a2-1]);

continue w;

}}

else?

System.out.println("圖書不存在！");

} catch (Exception e) {

// TODO: handle exception

e.printStackTrace();

System.out.println("輸入錯誤，請重新輸入！");

}

finally

{System.out.println("歡迎您下次光臨");}

}

}

}

}