Java实验报告之图书管理系统

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 hereUser U;Library L=new Library("东北大学图书馆");System.out.println("欢迎来到东北大学图书馆");Book b1=new Book("java编程思想","sdhf","554532",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","20175821");Students s2=new Master("狭隘","20164545");b1.BookUser.add(s2);b1.BookUser.add(s1);b2.BookUser.add(s2);b2.BookUser.add(s1);L.addBook(b1);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\n<<AccessADInterface\n<<AccessSTInterface\n<<over");System.out.print("<<");order=sc.next();if(order.equals("AccessADInterface")){Administrators A=new Administrators();if (A.getPassWord() == 1){while(true) {System.out.println("命令操作符\n<<ShowAllBook\n<<SearchBook\n<<AddBook\n<<DeleteBook\n<<ChangePassWord\n<<GoBack\n<<over" );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.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=erComing();while (true){System.out.println("<<SearchBook\n<<BorrowBook\n<<ReturnBook\n<<GoBack\n<<over"); 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);}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 final int ERROR=1;Vector<Object> 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 (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");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 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;i<this.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;i<b.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;i<this.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;i<this.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.ge tYear()+"\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.getDay()+"\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<Object> 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 (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");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 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;i<this.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;i<b.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;i<this.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;i<this.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.ge tYear()+"\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.getDay()+"\t"+b.surplus);}}User.javapackage pany;import java.util.Date;import java.util.Scanner;class User{public String name;public int 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：");=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.Id=id;}Teacher(){System.out.println("请输入你的姓名：");=sc.next();System.out.println("请输入你的工号：");this.Id=sc.next();this.numBookBor=0;}}Administrators/javapackage pany;import java.util.Scanner;public class Administrators {; private String passWod;Scanner sc=new Scanner(System.in);Administrators(){this.passWod="neu123";}public int getPassWord(){String passWord;for(int i=0;i<3;i++){System.out.println("请输入密码：");System.out.print("<<");passWord=sc.next();if( passWord.equals(this.passWod)){return 1;}else {System.out.println("密码错误，您还有"+(2-i)+"机会"); }}return 0;}public void changePassWord(){String passWord;for(int i=0;i<3;i++){System.out.println("请输入原密码：\n<<");passWord=sc.next();if( passWord.equals(this.passWod)){System.out.println("请输入新密码：\n<<");this.passWod=sc.next();break;}else {System.out.println("密码错误，您还有"+(2-i)+"机会"); }}}}欢迎您的下载，资料仅供参考！致力为企业和个人提供合同协议，策划案计划书，学习资料等等打造全网一站式需求。