java控制臺輸出圖書館管理系統(tǒng)

package com.jiaxun.library.data;
 
public class UserData {
 private String username = "小詢";//用戶名
 private String password = "zengjiaxun";//密碼
 public String getUser() {
 return username;
 }
 public String getPassword() {
 return password;
 }
 
}

package com.jiaxun.library.data;
 
 
public class BookData {
 //書庫
 public BookData() {
 {
 String noreaders= "無";
 for (int i = 0; i < borrowreaders.length; i++) {
 borrowreaders[i]=noreaders;
 }
 for (int i = 0; i < 5; i++) {
 switch (i) {
 case 0:
  booknames[i]="神級強者在都市";
  authors[i]="日當(dāng)午";
  pubdates[i]="2016-03-31";
  sumpaginations[i]="1320";
  break;
 case 1:
  booknames[i]="都市修仙高手";
  authors[i]="雪無淚";
  pubdates[i]="2017-07-25";
  sumpaginations[i]="656";
  break;
 case 2:
  booknames[i]="護(hù)花神兵";
  authors[i]="雞飛蛋打";
  pubdates[i]="2016-01-31";
  sumpaginations[i]="1120";
  break;
 case 3:
  booknames[i]="七界仙尊 ";
  authors[i]="無良書生";
  pubdates[i]="2017-04-04";
  sumpaginations[i]="1310";
  break;
 case 4:
  booknames[i]="戀上調(diào)皮公主";
  authors[i]="殘落筱筱";
  pubdates[i]="2012-08-20";
  sumpaginations[i]="954";
  break;
 }
 }
    
 }
 }
 
 public String[] booknames = new String[10];// 書名
 public String[] authors = new String[10];// 作者
 public String[] pubdates = new String[10];// 出版日期
 public String[] sumpaginations = new String[10];// 總頁數(shù)
 public String[] borrowreaders = new String[10];// 借閱人
 
}

package com.jiaxun.library.bo;
 
import java.util.Scanner;
 
import com.jiaxun.library.data.BookData;
import com.jiaxun.library.data.UserData;
 
public class Bo {
 public static BookData book = new BookData();
 UserData user = new UserData();
 // 管理員登錄驗證
 public int login(String username, String password) {
 if (username.equals(user.getUser())) {
 if (password.equals(user.getPassword())) {
 return 1;// 賬號和密碼驗證通過
 } else {
 return 0;// 密碼錯誤
 }
 } else {
 return -1;// 賬號不存在
 }
 }
 /*
 * 菜單功能展示列表
 * 
 * 圖書信息展示功能
 */
 public void showBook() {
 System.out.println("本圖書館共有" + (book.booknames.length - remainSpace()) + "本書");
 int a = bookinfo();
 if (a == 0) {
 // 展示所有圖書信息
 showAll();
 } else if (a > 0 && a <= book.booknames.length) {
 // 展示相關(guān)圖書信息
 showPart(a);
 } else {
 System.out.println("輸入的編號不合法！");
 showBook();
 }
 }
 // 展示所有圖書信息
 public void showAll() {
 for (int i = 0; i < book.booknames.length; i++) {
 if (book.booknames[i] != null) {
 System.out.println("---------------------------------------編號" + (i + 1)
  + "--------------------------------------------------------------");
 System.out.println("書籍編號為" + (i + 1) + "的詳細(xì)信息為：");
 System.out.print("書名：" + book.booknames[i] + " ");
 System.out.print("作者：" + book.authors[i] + " ");
 System.out.print("出版日期：" + book.pubdates[i] + " ");
 System.out.print("總頁數(shù)：" + book.sumpaginations[i] + " ");
 System.out.println("借閱者：" + book.borrowreaders[i]);
 }
 }
 System.out.println(
 "---------------------------------------------------------------------------------------------------------");
 }
 // 展示相關(guān)圖書信息
 public void showPart(int a) {
 int i = a;
 System.out.println(
 "---------------分界線---------------------------------------------------------------------------------------------------");
 System.out.println("書籍編號" + (i) + "的詳細(xì)信息為：");
 System.out.print("書名：" + book.booknames[i - 1] + " ");
 System.out.println("作者：" + book.authors[i - 1] + " ");
 System.out.print("出版日期：" + book.pubdates[i - 1] + " ");
 System.out.print("總頁數(shù)：" + book.sumpaginations[i - 1] + " ");
 System.out.println("借閱者：" + book.borrowreaders[i - 1]);
 System.out.println(
 "---------------------------------------------------------------分界線---------------------------------------------------");
 }
 //根據(jù)編號判斷要全局展示還是部分展示
 public int bookinfo() {
 for (int i = 0; i < book.booknames.length; i++) {
 if (book.booknames[i] != null) {
 System.out.println("書名編號" + (i + 1) + "：" + book.booknames[i] + " ");
 }
 }
 System.out.print("輸入相應(yīng)編號即可查看相應(yīng)書籍的詳細(xì)信息(輸入0則查看所有信息)：");
 Scanner scanner = new Scanner(System.in);
 int i = scanner.nextInt();
 return i;
 }
 // 錄入新書籍判斷
 public int addBook(String bookname, String author, String pubdate, String sumpagination) {
 int flag = 0;// 1為成功，0為圖書館已經(jīng)存在該新書，-1為倉庫爆滿
 if (book.booknames[book.booknames.length - 1] != null) {
 flag = -1;// 爆滿
 }
 if (book.booknames[book.booknames.length - 1] == null) {
 
 for (int i = 0; i < book.booknames.length; i++) {
 
 if (bookname.equals(book.booknames[i])) {
  flag = 0;// 已存在book.booknames[i]
  break;
 }
 if (!(bookname.equals(book.booknames[i]))) {
  // 添加書籍
  add(bookname, author, pubdate, sumpagination);
  flag = 1;// 成功
  break;
 }
 }
 }
 return flag;
 }
 // 錄入新書籍
 public void add(String bookname, String author, String pubdate, String sumpagination) {
 for (int i = 0; i < book.booknames.length; i++) {
 if (book.booknames[i] == null) {
 book.booknames[i] = bookname;
 book.authors[i] = author;
 book.pubdates[i] = pubdate;
 book.sumpaginations[i] = sumpagination;
 break;
 }
 }
 }
 // 存放書本的剩余容量
 public int remainSpace() {
 int count = 0;
 try {
 for (int i = 0; i < book.booknames.length; i++) {
 if (book.booknames[i] == null) {
  ++count;
 }
 }
 } catch (Exception e) {
 // TODO: handle exception
 }
 return count;
 }
 // 修改時根據(jù)書名查找相關(guān)的書籍信息
 public int selectBook(String bookname) {
 int flag = 0;
 for (int i = 0; i < book.booknames.length; i++) {
 if (bookname.equals("")) {
 flag = -1;// -1為未輸入書名
 break;
 }
 // 其他情況下為匹配館里的圖書
 if (bookname.equals(book.booknames[i])) {
 flag = 1;// 1找到相關(guān)書名
 showPart(i + 1);
 break;
 }
 if (!bookname.equals(book.booknames[i])) {
 if (i == book.booknames.length - 1) {
  flag = 0;// 0為未找到
 }
 }
 }
 return flag;
 }
 // 根據(jù)書名查找索引，有此書返其索引，無返-1
 public int selectIndex(String bookname) {
 int flag = -1;
 for (int i = 0; i < book.booknames.length; i++) {
 if (bookname.equals(book.booknames[i])) {
 flag = i;
 }
 }
 return flag;// 找不到此書
 }
 // 修改書籍信息 1書名 2作者 3出版日期 4總頁數(shù) 5借閱者
 public void modinfo(int a, String value, int index) {
 
 switch (a) {
 case 1:
 book.booknames[index] = value;
 break;
 
 case 2:
 book.authors[index] = value;
 break;
 case 3:
 book.pubdates[index] = value;
 break;
 case 4:
 book.sumpaginations[index] = value;
 break;
 case 5:
 book.borrowreaders[index] = value;
 break;
 }
 
 }
 // 刪除書籍功能
 public void deleteBook(String bookname) {
 int a = selectIndex(bookname);
 book.booknames[a] = null;
 book.authors[a] = null;
 book.pubdates[a] = null;
 book.sumpaginations[a] = null;
 book.booknames[a] = null;
 
 }
 // 檢查書是否存在館里和是否已借出
 public int testReader(String bookname) {
 
 // 館里有此書，查找此書的索引，有此書a>=0，無返-1
 int a = selectIndex(bookname);
 // 館里有此書
 if (a >= 0) {
 if ((book.borrowreaders[a].equals("無") || book.borrowreaders[a].equals("")))// 無人借此書，""為掃描器的直接回車值
 return 0;//未借
 else
 return 1;//已借
 } else {
 return -1;// 館里沒有此書
 }
 
 }
 //將借閱者設(shè)置為無或者為空
 public void setBorrowReader(String bookname){
 int a = selectIndex(bookname);
 book.borrowreaders[a]="無";
 }
 //查詢指定書的借閱者
 public String getBorrowReader(String bookname){
 int a = selectIndex(bookname);
 return book.borrowreaders[a];
 }
 
 //書籍借閱功能
 public void borrow(String bookname,String readername){
 int a = selectBook(bookname);
 book.borrowreaders[a]=readername;
 }
}

package com.jiaxun.library.ui;
 
import java.util.Scanner;
 
import com.jiaxun.library.bo.Bo;
 
public class LibraryUI {
 
 Bo bo = new Bo();
 
 public static void main(String[] args) {
 LibraryUI ui = new LibraryUI();
 ui.welcome();// 歡迎界面
 
 }
 
 // 歡迎界面
 public void welcome() {
 System.out.println("*********************************");
 System.out.println("********小☆詢圖書館管理系統(tǒng)********");
 System.out.println("*********************************");
 loginBoundary();// 登錄界面
 }
 
 // 管理員登錄界面
 public void loginBoundary() {
 System.out.print("管理員賬號：");
 Scanner scanner = new Scanner(System.in);
 String username = scanner.nextLine();
 System.out.print("登 錄 密 碼 ：");
 Scanner scanner1 = new Scanner(System.in);
 String password = scanner1.nextLine();
 int flag = bo.login(username, password);// 登錄驗證
 switch (flag) {
 case 0:// 密碼錯誤
 System.out.println("密碼錯誤，請重新輸入。");
 loginBoundary();
 break;
 
 case 1:// 驗證通過
 System.out.println("登錄成功！");
 showMenu();// 登錄成功后跳轉(zhuǎn)至菜單功能管理
 break;
 case -1:// 賬戶不存在
 System.out.println("您輸入的管理員賬號不存在，請確認(rèn)后再輸入。");
 loginBoundary();
 break;
 }
 }
 
 // 菜單功能展示列表
 public void showMenu() {
 System.out.println("請輸入功能編號進(jìn)入相應(yīng)的功能：");
 System.out.println("所有的圖書信息——編號：1");
 System.out.println("錄入新的書籍——編號：2");
 System.out.println("修改書籍基本信息——編號：3");
 System.out.println("刪除書籍功能——編號：4");
 System.out.println("還書功能——編號：5");
 System.out.println("書籍借閱功能——編號：6");
 System.out.println("退出系統(tǒng)——編號：7");
 System.out.print("請輸入功能編號：");
 Scanner scanner = new Scanner(System.in);
 int a = scanner.nextInt();//
 switch (a) {
 case 1:// 圖書信息
 showBook();
 returnMethod();// 返回主菜單
 break;
 case 2:// 錄入新書籍
 addBook();
 break;
 case 3:// 修改書籍基本信息
 modBookInfo();
 break;
 case 4:// 刪除書籍
 delete();
 break;
 case 5:// 還書
 returnBook();
 break;
 case 6:// 借閱
 borrowBook();
 break;
 case 7:// 退出登錄
 welcome();
 scanner.close();
 break;
 }
 }
 
 // 返回主菜單功能
 public void returnMethod() {
 System.out.print("按下ENTER鍵返回到功能主菜單：");
 Scanner scanner = new Scanner(System.in);
 String i = scanner.nextLine();
 showMenu();
 }
 
 // 圖書信息展示功能
 public void showBook() {
 bo.showBook();
 }
 
 // 錄入新書籍功能
 public void addBook() {
 System.out.print("請輸入要增加的書籍名稱：");// 書名
 Scanner scanner = new Scanner(System.in);
 String bookname = scanner.nextLine();
 System.out.print("請輸入" + bookname + "的作者：");// 作者
 Scanner scanner1 = new Scanner(System.in);
 String author = scanner1.nextLine();
 System.out.print("請輸入" + bookname + "的出版日期（格式如2000-01-01）：");// 出版日期
 Scanner scanner2 = new Scanner(System.in);
 String pubdate = scanner2.nextLine();
 System.out.print("請輸入" + bookname + "的總頁數(shù)（頁）：");// 總頁數(shù)
 Scanner scanner3 = new Scanner(System.in);
 String sumpagination = scanner3.nextLine();
 int flag = bo.addBook(bookname, author, pubdate, sumpagination);
 // 1為成功，0為圖書館已經(jīng)存在該新書，-1為倉庫爆滿
 switch (flag) {
 case 1:
 System.out.println("新書籍" + bookname + "添加成功，目前圖書館還有" + bo.remainSpace() + "個位置可以存放新書籍。");
 returnMethod();// 書籍添加界面中的返回功能，可選擇繼續(xù)添加或者回到主菜單
 break;
 case 0:
 System.out.println("添加書籍失敗，" + bookname + "已存在該圖書館中！");
 returnMethod();// 書籍添加界面中的返回功能，可選擇繼續(xù)添加或者回到主菜單
 break;
 case -1:
 System.out.println("添加失敗，圖書館已經(jīng)存儲量已經(jīng)爆滿了，請刪除部分書籍后再進(jìn)行添加。");
 showMenu();
 break;
 }
 }
 
 // 修改書籍信息
 public void modBookInfo() {
 System.out.print("請輸入您要操作的書名：");
 Scanner scanner = new Scanner(System.in);
 String bookname = scanner.nextLine();
 // 根據(jù)書名查找相關(guān)的書籍信息
 int flag = bo.selectBook(bookname);
 switch (flag) {
 case 0:
 System.out.print("未找到相關(guān)書籍，輸入0回車進(jìn)入該層功能，輸入1回車返回到功能主菜單。");
 int a = scanner.nextInt();
 if (a == 0) {
 modBookInfo();
 } else if (a == 1) {
 
 showMenu();
 }
 break;
 
 case -1:
 System.out.println("書名為空，輸入0回車進(jìn)入該層功能，輸入1回車返回到功能主菜單。");
 int a1 = scanner.nextInt();
 if (a1 == 0) {
 modBookInfo();
 } else {
 showMenu();
 }
 break;
 
 case 1:
 System.out.print("以上信息為相關(guān)書名查找的結(jié)果，其中（數(shù)字“1”代表書名，數(shù)字“2”代表作者，數(shù)字“3”代表出版日期，數(shù)字“4”代表總頁數(shù)，數(shù)字“5”代表借閱者）輸入相關(guān)數(shù)字可以修改相關(guān)信息：");
 int a2 = scanner.nextInt();// 1書名 2作者 3出版日期 4總頁數(shù) 5借閱者
 if (a2 > 0 && a2 < 6) {
 System.out.print("請輸入您想修改的" + sortName(a2) + "：");
 Scanner scanner2 = new Scanner(System.in);
 String value = scanner2.nextLine();
 int index = bo.selectIndex(bookname);
 bo.modinfo(a2, value, index);
 System.out.println(bookname + "這本書的相關(guān)信息修改成功！");
 returnMethod();
 } else {
 System.out.println("您輸入的數(shù)字不合法。請重試！");
 modBookInfo();
 }
 
 break;
 
 }
 }
 
 // 修改的分類名稱
 public String sortName(int flag) {
 if (flag == 1)
 return "書名";
 if (flag == 2)
 return "作者";
 if (flag == 3)
 return "出版日期";
 if (flag == 4)
 return "總頁數(shù)";
 else
 return "借閱者";
 }
 
 // 刪除書籍功能
 public void delete() {
 System.out.print("請輸入要被刪除的書名：");
 Scanner scanner = new Scanner(System.in);
 String bookname = scanner.nextLine();
 int flag = bo.testReader(bookname);
 // 存在此書并無人借
 if (flag == 0) {
 bo.deleteBook(bookname);
 System.out.println(bookname + "已從圖書館成功移除！輸入0回到主菜單，輸入1則繼續(xù)刪除");
 delReturn();
 } else if (flag == 1) {// 有人借
 System.out.println("此書已借出，請等待歸還后再刪除。輸入0回到主菜單，輸入1則繼續(xù)刪除");
 delReturn();
 } else {// 不存在此書
 System.out.println("本館不存在此書，請仔細(xì)較對。輸入0回到主菜單，輸入1則繼續(xù)刪除");
 delReturn();
 }
 
 }
 
 // 刪除的返回操作
 public void delReturn() {
 
 Scanner scanner1 = new Scanner(System.in);
 int i = scanner1.nextInt();
 if (i == 0) {
 showMenu();
 } else if (i == 1) {
 delete();
 }
 }
 
 // 還書功能
 public void returnBook() {
 System.out.print("請輸入要還的書籍名稱：");
 Scanner scanner = new Scanner(System.in);
 String bookname = scanner.nextLine();
 int flag = bo.testReader(bookname);
 if (flag == 0) {
 System.out.println(bookname + "暫未借出。");
 System.out.print("輸入0回車返回至主菜單，輸入其他鍵則繼續(xù)還書");
 String a = scanner.nextLine();
 if(a.equals("0")){
 showMenu();
 }else {
 returnBook();
 }
 } else if (flag == -1) {
 System.out.println(bookname + "不存在該圖書館中。");
 System.out.print("輸入0回車返回至主菜單，輸入其他鍵則繼續(xù)還書");
 String a = scanner.nextLine();
 if(a.equals("0")){
 showMenu();
 }else {
 returnBook();
 }
 } else if (flag == 1) {
 
 System.out.println(bo.getBorrowReader(bookname) + "已經(jīng)還書成功！");
 bo.setBorrowReader(bookname);
 System.out.print("輸入0回車返回至主菜單，輸入其他鍵則繼續(xù)還書");
 String a = scanner.nextLine();
 if(a.equals("0")){
 showMenu();
 }else {
 returnBook();
 }
 }
 }
 
 // 書籍借閱功能
 public void borrowBook() {
 System.out.print("請輸入要借的書名：");
 Scanner scanner = new Scanner(System.in);
 String bookname = scanner.nextLine();
 int flag = bo.testReader(bookname);
 switch (flag) {
 case 0://存在此書并無人借的情況
 
 System.out.println("請輸入借閱者的名字：");
 String readername = scanner.nextLine();
 bo.borrow(bookname,readername);
 System.out.println(readername+"從該圖書館里借出了以"+bookname+"為名的書籍。");
 System.out.print("輸入0回車返回至主菜單，輸入1回車則繼續(xù)借書：");
 int a0 = scanner.nextInt();
 if(a0==0)
  showMenu();
 if(a0==1)
  borrowBook();
 break;
 
 case 1://存在此書被借的情況
 System.out.println("借書失敗，" + bookname + "已被借！");
 System.out.print("輸入0回車返回至主菜單，輸入1回車則繼續(xù)借書：");
 int a = scanner.nextInt();
 switch (a) {
 case 0:
 showMenu();
 break;
 
 case 1:
 borrowBook();
 break;
 
 }
 case -1://不存在此書的情況
 System.out.println("借書失敗，" + bookname + "不存在該圖書館中。");
 System.out.print("輸入0回車返回至主菜單，輸入1回車則繼續(xù)借書：");
 int a1 = scanner.nextInt();
 switch (a1) {
 case 0:
 showMenu();
 break;
 
 case 1:
 borrowBook();
 break;
 
 }
 }
 }
}