照著老師說的做能看懂，可實戰還是懵逼....求各位幕友助攻
開發一個控制臺程序，要求控制臺輸出以下內容：
開發一個無數據庫的圖書館管理系統，圖書管理系統包括的事務有：添加借書人信息，添加圖書到圖書館系統，借圖書，還圖書。
操作業務順序要求：
1. 輸入要被圖書館保存的圖書。
2. 控制臺輸出當前圖書館保存圖書的書名，以及藏書總數。
3. 再輸入自己的姓名。
4. 借出圖書館中已保存的某本圖書。
5. 控制臺打印輸出借書者詳細信息，以及當前圖書館中剩余圖書的的總數，并輸出剩余圖書的書名。
寂寞狂歡1
2017-04-24
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2017-04-24
拿類似的代碼多練，練到10遍以上，就再不蒙了
2017-04-25
我試著按要求寫了一下??不知道合不合?要求。。。 ****************第一個Book類****************** package?libBook; import?java.util.Stack; /** ?*?Created?by?Administrator?on?2017/4/25. ?*/ public?class?Book?{ ????public?String?BookName??; ????public?String?BPersonName?; ????public?String?index; ????public?int?flag; ????public?Book(String?BookName,String?BPersonName,String?index,int?flag) ????{ ????????this.BookName?=?BookName; ????????this.BPersonName?=?BPersonName; ????????this.index?=?index; ????????this.flag?=?flag; ????} ????public?Book() ????{ ????} } *************************第二個Main類*********************** package?libBook; import?java.util.ArrayList; import?java.util.List; import?java.util.Scanner; /** ?*?Created?by?Administrator?on?2017/4/25. ?*/ public?class?Main?{ ????Scanner?console?=?new?Scanner(System.in); ????public?List<Book>?BookList?; ????public??String?index_1?; ????public??int?index_2?=?0; ????public?int?index_3?=?0; ????public?Main() ????{ ????????this.BookList?=?new?ArrayList<Book>(); ????} ????public?void?inBook() ????{ ????????while(true) ????????{ ????????????System.out.println("請輸入您要存入圖書的名字(輸入end結束存書)："); ????????????String?Book_1?=?(String)?console.next(); ????????????index_1?=?String.valueOf(BookList.size()+1); ????????????if?(Book_1.equals("end")?) ????????????{ ????????????????System.out.println("結束存書?。。?); ????????????????break; ????????????} ????????????Book?Book1?=?new?Book(Book_1,null,index_1,0); ????????????BookList.add(Book1); ????????} ????} ????public?void?inForEach() ????{ ????????System.out.println("一共存了："+BookList.size()+"本書?。?); ????????System.out.println("分別是："); ????????for(Book?Bk?:?BookList) ????????{ ????????????if(Bk.flag?!=?1) ????????????{ ????????????????System.out.println(Bk.index+"."+Bk.BookName); ????????????} ????????} ????} ????public?void?outBook() ????{ ????????System.out.println("請輸入借書人姓名:"); ????????String?perName?=?console.next(); ????????while(true) ????????{ ????????????System.out.println("請輸入要借書的序號(輸入end結束借書)："); ????????????String?ID?=?console.next(); ????????????if(ID.equals("end")) ????????????{ ????????????????System.out.println("結束借書??！"); ????????????????break; ????????????} ????????????????int?ID2?=?Integer.parseInt(ID); ????????????????index_2?=?index_2+1; ????????????????Book?Book2?=?BookList.get(ID2?-?1); ????????????????Book?Book3?=?new?Book(Book2.BookName,?perName,?ID,?1); ????????????????BookList.set(ID2?-?1,Book3); ????????} ????} ????public?void?outForEach() ????{ ????????System.out.println("被借的書有："+index_2+"本??！"); ????????for(Book?Bk2?:?BookList) ????????{ ????????????if(Bk2.flag?==?1) ????????????{ ????????????????System.out.println(Bk2.index+"."+Bk2.BookName+",由"+Bk2.BPersonName+"借走啦！！"); ????????????} ????????} ????????index_3?=?BookList.size()?-?index_2; ????????System.out.println("還剩下的書有："+index_3+"本?。。?); ????????System.out.println("分別是："); ????????for(Book?Bk3?:?BookList) ????????{ ????????????if(Bk3.flag?==?0) ????????????{ ????????????????System.out.println(Bk3.index+"."+Bk3.BookName); ????????????} ????????} ????} ????public??static?void?main(String[]?args) ????{ ?????????Main?m?=?new?Main(); ?????????m.inBook(); ?????????m.inForEach(); ?????????m.outBook(); ?????????m.outForEach(); ????} }