Java 入门第三季1-9：总结（图书查询系统）

import java.util.Scanner;
public class BookGeneral2 {
    public static void main(String[] args) {
        String[] ShuMingArray = {"数学建模","工程数学","Java入门","C语言","数据库","网页设计"};
        String[] XuHaoArray = {"001","002","003","004","005","006"};
        Scanner sc = new Scanner(System.in);
        boolean start = true;
        while(start){
            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{
                String number1 = sc.next();   //1或2
                switch(number1){
                case "1" : BookName(ShuMingArray,XuHaoArray);start=false;break;
                case "2" : Number(ShuMingArray,XuHaoArray);start=false;break;
                default : throw new SelectException("输入命令错误！请根据提示输入数字命令！");
                }
            }catch(SelectException e){
                System.out.println(e.getMessage());
                continue;
            }
        }
    }
    /*
     * 自定义异常:
     */
    //书名异常
    public static void BookName(String ShuMingArray[],String XuHaoArray[]){
        Scanner ac = new Scanner(System.in);
        String Buff = "Blue";
        boolean start = true;
        while(start){
            System.out.println("输入图书名称：");
            try{
                String shuming = ac.next();             //书名
                for(int i=0;i<ShuMingArray.length;i++){
                    if(ShuMingArray[i].equals(shuming)){
                        System.out.println("图书信息：《"+ShuMingArray[i]+"》，作者：XXX"+"，序列号："+XuHaoArray[i]+"          -查询结束");
                        Buff = "Red";
                        start=false;             //结束查询
                    }
                }
                if(Buff.equals("Blue")){
                    throw new BookNameException("没有找到该图书！#1");
                }
            }catch(BookNameException e){
                System.out.println(e.getMessage());
                continue;
            }
        }
    }
    //序号异常
    public static void Number(String ShuMingArray[],String XuHaoArray[]){
        Scanner bc = new Scanner(System.in);
        String Buff = "Blue";
        boolean start = true;
        while(start){
            System.out.println("输入图书序号：");
            try{
                String xuhao = bc.next();                 //序号
                for(int j=0;j<XuHaoArray.length;j++){
                    if(XuHaoArray[j].equals(xuhao)){
                        System.out.println("图书信息：《"+ShuMingArray[j]+"》，作者：XXX"+"，序列号："+XuHaoArray[j]+"          -查询结束");
                        Buff = "Red";
                        start=false;             //结束查询
                    }
                }
                if(Buff.equals("Blue")){
                    throw new NumberException("没有找到该图书！#2");
                }
            }catch(NumberException e){
                System.out.println(e.getMessage());
                continue;
            }
        }
    }
}