Java实验报告之图书管理系统

1、Java实验报告图书管理系统1. 管理员界面密码验证展示所有图书查找图书添加书籍删除书籍修改密码返回上一层结束2. 学生界面身份识别查找图书借阅图书归还书籍返回上一层结束3. 退出程序源代码：Main.javapackage pany;import java.util.Date;import java.util.Scanner;public class Main public static void main(String args) / write your code here User U; Library L=new Library(东北大学图书馆); System.out

2、.println(欢迎来到东北大学图书馆); Book b1=new Book(java编程思想,sdhf,new Date(2016,12,13),15); Book b2=new Book(C+编程,nimei,15654,new Date(2017,5,13),5); Students s1=new Undergraduate(黎明,); Students s2=new Master(狭隘,); b1.BookUser.add(s2); b1.BookUser.add(s1); b2.BookUser.add(s2); b2.BookUser.add(s1); L.addBook(b1)

3、; L.addBook(b2); /在以上的代码中都是为了增加图书馆中的藏书 Scanner sc=new Scanner(System.in); String order; /命令操作板 while(true) System.out.println(命令操作符nAccessADInterfacenAccessSTInterfacenover); System.out.print(); order=sc.next(); if(order.equals(AccessADInterface) Administrators A=new Administrators(); if (A.getPassW

4、ord() = 1) while(true) System.out.println(命令操作符nShowAllBooknSearchBooknAddBooknDeleteBooknChangePassWordnGoBacknover); System.out.print(); order = sc.next(); if (order.equals(ShowAllBook) L.ShowBook(); else if (order .equals( SearchBook) L.ShowBook(L.SearchBook(); else if (order.equals( AddBook) ) L

5、.addBook(); else if (order .equals( DeleteBook) L.DeleteBook(); else if(order.equals(ChangePassWord) A.changePassWord(); else if (order .equals( GoBack) break; else if (order .equals( over) System.out.println(已退出图书管理系统); System.exit(0); else System.exit(0); else if(order.equals(AccessSTInterface) U=

6、L.UserComing(); while (true) System.out.println(SearchBooknBorrowBooknReturnBooknGoBacknover); System.out.print(); order=sc.next(); if(order.equals(SearchBook) L.ShowBook(L.SearchBook(); else if(order.equals(BorrowBook) L.SearchBook().BookBorrow(U); else if(order.equals(ReturnBook) L.ReturnBook(U);

7、else if(order.equals(GoBack) break; else if(order.equals(over) System.out.println(已退出图书管理系统); System.exit(0); else System.out.println(输入了错误的指令); continue; Library.javapackage pany;import java.util.Scanner;import java.util.Vector;public class Library public static final int OK=1; public static

8、 final int ERROR=1; Vector book= new Vector();/用来存储书类 丹书类中也存有用户类 private String Libraryname; Scanner sc=new Scanner(System.in); Library (String name) this.Libraryname=name; public User UserComing() int kind; User U; Scanner sc = new Scanner(System.in); System.out.println(如果你是老师请输入1，若是学生请输入2); while

9、(true) while(true) kind = sc.nextInt(); if (kind = 1) U = new Teacher(); return U; else if (kind = 2) System.out.println(如果你是本科生请输入1，若是硕士研究生请输入2); while (true) kind=sc.nextInt(); if(kind=1) U = new Undergraduate(); return U; else if(kind=2) U=new Master(); return U; else System.out.println(输入错误); br

10、eak; else System.out.println(输入错误); System.out.println(请重新输入：); break; public void addBook(Book b) book.add(b); public void addBook() int i; i=1; Book b; while(i=1) b=new Book(); this.addBook(b); System.out.println(如果要继续输入书本信息就输入1，否则就输入2); i=sc.nextInt(); public Book SearchBook() String BookName; Bo

11、ok b; System.out.println(请输入你要借查询的书); BookName=sc.next(); for(int i=0;ithis.book.size();i+) b=(Book)this.book.elementAt(i); if(b.bookName.equals(BookName) return b; return null; public void ReturnBook(User U) User u; Book b; b=this.SearchBook(); for(int i=0;ib.BookUser.size();i+) u=(User) b.BookUser

12、.elementAt(i); if(u=U) U.numBookBor-; b.BookUser.remove(i); b.surplus+; System.out.println(还书成功); return; else System.out.println(您不是这本书的借阅者，不能还书); return; System.out.println(找不到你要的书); public void DeleteBook() String BookName; Book b; System.out.println(请输入你要删除的书); BookName=sc.next(); for(int i=0;it

13、his.book.size();i+) b=(Book)this.book.elementAt(i); if(b.bookName.equals(BookName) if(b.BookUser.size()=0) this.book.remove(i); System.out.println(已经成功的删除书籍); else System.out.println(还有人尚未还书，不能够删除书籍); public void ShowBook() Book b; for(int i=0;ithis.book.size();i+) b=(Book)book.elementAt(i); System.

14、out.println(i+1)+t+b.bookName+t+b.auther+t+b.bookNum+t+b.depositTime.getYear()+t+b.depositTime.getMonth()+t+b.depositTime.getDay()+t+b.surplus); public void ShowBook(Book b) System.out.println(t+b.bookName+t+b.auther+t+b.bookNum+t+b.depositTime.getYear()+t+b.depositTime.getMonth()+t+b.depositTime.ge

15、tDay()+t+b.surplus); Book.javapackage pany;import java.util.Scanner;import java.util.Vector;public class Library public static final int OK=1; public static final int ERROR=1; Vector book= new Vector();/用来存储书类 丹书类中也存有用户类 private String Libraryname; Scanner sc=new Scanner(System.in); Library (

16、String name) this.Libraryname=name; public User UserComing() int kind; User U; Scanner sc = new Scanner(System.in); System.out.println(如果你是老师请输入1，若是学生请输入2); while (true) while(true) kind = sc.nextInt(); if (kind = 1) U = new Teacher(); return U; else if (kind = 2) System.out.println(如果你是本科生请输入1，若是硕士

17、研究生请输入2); while (true) kind=sc.nextInt(); if(kind=1) U = new Undergraduate(); return U; else if(kind=2) U=new Master(); return U; else System.out.println(输入错误); break; else System.out.println(输入错误); System.out.println(请重新输入：); break; public void addBook(Book b) book.add(b); public void addBook() int

18、 i; i=1; Book b; while(i=1) b=new Book(); this.addBook(b); System.out.println(如果要继续输入书本信息就输入1，否则就输入2); i=sc.nextInt(); public Book SearchBook() String BookName; Book b; System.out.println(请输入你要借查询的书); BookName=sc.next(); for(int i=0;ithis.book.size();i+) b=(Book)this.book.elementAt(i); if(b.bookName

19、.equals(BookName) return b; return null; public void ReturnBook(User U) User u; Book b; b=this.SearchBook(); for(int i=0;ib.BookUser.size();i+) u=(User) b.BookUser.elementAt(i); if(u=U) U.numBookBor-; b.BookUser.remove(i); b.surplus+; System.out.println(还书成功); return; else System.out.println(您不是这本书的

20、借阅者，不能还书); return; System.out.println(找不到你要的书); public void DeleteBook() String BookName; Book b; System.out.println(请输入你要删除的书); BookName=sc.next(); for(int i=0;ithis.book.size();i+) b=(Book)this.book.elementAt(i); if(b.bookName.equals(BookName) if(b.BookUser.size()=0) this.book.remove(i); System.ou

21、t.println(已经成功的删除书籍); else System.out.println(还有人尚未还书，不能够删除书籍); public void ShowBook() Book b; for(int i=0;ithis.book.size();i+) b=(Book)book.elementAt(i); System.out.println(i+1)+t+b.bookName+t+b.auther+t+b.bookNum+t+b.depositTime.getYear()+t+b.depositTime.getMonth()+t+b.depositTime.getDay()+t+b.su

22、rplus); public void ShowBook(Book b) System.out.println(t+b.bookName+t+b.auther+t+b.bookNum+t+b.depositTime.getYear()+t+b.depositTime.getMonth()+t+b.depositTime.getDay()+t+b.surplus); User.javapackage pany;import java.util.Date;import java.util.Scanner;class User public String name; public in

23、t numBookBor;/借书的数量 /public Date borrowTime; public String Id; public Scanner sc=new Scanner(System.in); User() class Students extends User/想想其实也不过如此class Undergraduate extends Students Undergraduate(String sName,String id) =sName; this.Id=id; Undergraduate() System.out.println(请输入你的姓名：); t

24、=sc.next(); System.out.println(请输入你的学号：); this.Id=sc.next(); this.numBookBor=0; class Master extends Students Master(String sName,String id) =sName; this.Id=id; Master() System.out.println(请输入你的姓名：); =sc.next(); System.out.println(请输入你的学号：); this.Id=sc.next(); this.numBookBor=0; class Teacher extends User Teacher(String tName,String id) =tName; this