package?com.imooc_1;

import?java.util.Scanner;

public?class?BorrowBooks?{
	public?static?Scanner?sc?=?new?Scanner(System.in);
	/**
	?*?@param?args
	?*/
	public?static?void?main(String[]?args)?{
		//?TODO?Auto-generated?method?stub
		String[]?name?=?{"數(shù)據(jù)結(jié)構(gòu)","大學(xué)英語(yǔ)","高數(shù)","網(wǎng)絡(luò)工程","軟件工程","毛概"};
		
		
		while(true){
			System.out.println("輸入命令：1-按照名稱(chēng)查找圖書(shū);2-按照序號(hào)查找圖書(shū)");
			String?book;
			try{
				int?input?=?print();
				switch(input){
					case?1:
						book?=?getBookByName(name);
						System.out.println("book:"+book);
						break;
					case?2:
						book?=?getBookByNum(name);
						System.out.println("book:"+book);
						break;
					case?-1:
						System.out.println("命令輸入錯(cuò)誤！請(qǐng)根據(jù)提示輸入數(shù)字命令！");
						sc?=?new?Scanner(System.in);
						continue;
					default:
						System.out.println("命令輸入錯(cuò)誤！");
						continue;
				}
				break;
			}catch(Exception?e){
				System.out.println(e.getMessage());
				continue;
			}
		}
	}
	//按照?qǐng)D書(shū)名稱(chēng)查找
	public?static?String?getBookByName(String[]?nameBooks)?throws?Exception{
		System.out.println("請(qǐng)輸入圖書(shū)名稱(chēng)：");
		String?nameSearch?=?sc.next();
		
		for(int?i=0;?i<nameBooks.length;?i++){
			if(nameSearch.equals(nameBooks[i]))
				return?nameBooks[i];
		}
		throw?new?Exception("圖書(shū)不存在！");
	}
	//按照?qǐng)D書(shū)序號(hào)查找
	public?static?String?getBookByNum(String[]?namebooks)?throws?Exception{
		while(true){
			System.out.println("請(qǐng)輸入圖書(shū)序號(hào)：");
			int?num?=?print();
			try{
				if(num?==?-1){
					System.out.println("命令輸入錯(cuò)誤！請(qǐng)根據(jù)提示輸入數(shù)字命令！");
					continue;
				}
				String?book?=?namebooks[num-1];
				return?book;
			}catch(Exception?e){
				return?"圖書(shū)不存在";
			}
		}
	}
	//輸入命令，輸入圖書(shū)序號(hào)
	public?static?int?print(){
		int?x;
		try?{
			x?=?sc.nextInt();
			return?x;
		}?catch?(Exception?e)?{
			//?TODO:?handle?exception
			
			return?-1;
		}
	}
}