package com.imooc;
import java.util.*;
public class Return {
public static void main(String[] args) {
// TODO Auto-generated method stub
String[] book={"数学分析","高等代数","数理统计","回归分析","多元统计","时间序列","随机过程"};
int[] num={1,2,3,4,5,6,7};
Return cw=new Return();
System.out.println("输入命令：1-按照名称查找图书；2-按照序号查找图书");
Scanner input=new Scanner(System.in);
String xz;
int xh;
while(true)
{ xz=input.next();
try{
int pd=Integer.parseInt(xz);
if (pd!=1&&pd!=2){
RuntimeException a=new RuntimeException();
throw a;
}
//System.out.println("输入正确了");
break;
}catch(RuntimeException e){
System.out.println("命令输入错误！请根据提示输入数字命令");
continue;
}
}
if(xz.equals("1")){
System.out.println("请输入图书名称");
while(true){
String sm=input.next();
//System.out.println("刚才输入的是"+sm);
try{
for (int i=0;i<book.length;i++){
if(sm.equals(book[i])){
System.out.println("find book:"+book[i]);
break;
}else
if (i<6)
continue;
else if(i==6)
{
//cw.zbds();
RuntimeException e=new RuntimeException();
throw e;
}
}
break;
}catch(RuntimeException e){
System.out.println("图书不存在！请重新输入");
continue;
}
}
}else if(xz.equals("2")){
while(true){
System.out.println("请输入图书序号：");
try{
xh=input.nextInt();
if(xh>=1&&xh<=7){
System.out.println("find book:"+book[xh-1]);
break;
}else {
RuntimeException a=new RuntimeException();
throw a;
}
}catch(RuntimeException a){
System.out.println("命令输入错误！请根据提示输入数字命令");
continue;
}
}
}
}
}
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