图书管理的异常处理

Question

package com.exception;

public class ExceptionTest {

/**

* @param args

*/

public static void main(String[] args) {

// TODO Auto-generated method stub

Book[] book={new Book(1,"高数"),new Book(2,"论语"),new Book(3,"英语"),new Book(4,"编程"),new Book(5,"语文")};

BookAdmin ba=new BookAdmin();

int command=ba.inputCommand();

while(true){

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");

try{

switch(command){

case 1:

String book1=ba.getBookByName(book);

System.out.println("book:"+book1);

break;

case 2:

String book2=ba.getBookByName(book);

System.out.println("book:"+book2);

break;

case -1:

System.out.println("命令输入错误！请根据提示输入数字命令！");

continue;

default:

System.out.println("命令输入错误！");

continue;

}

}catch(Exception e){

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

}

}

}

}

哪位大神帮忙看看怎么运行的时候啥输出都没有。调用方法写在另一个类里了，程序也没报错。

跪求大神指导

Answer 1

while(true)..  就是让程序一直循环啊

Answer 2

多打印System.out输出。while(true)..  这个true定义了？