devbox
我家小花儿
这个屌丝很懒，什么也没留下！
关注作者
热门标签
热门文章
当前位置:   article > 正文

Java图书馆_javalibrary

作者：我家小花儿 | 2024-05-11 19:47:33

赞

踩

javalibrary

io流用的不是很熟练，还有Book类的应用出了点问题，越改越错，从2个错误改到102个QAQ，孩子想哭，问了好多人也没改成，最后勉强成型，而且上个星期内分泌系统出了点小问题，天天往医院跑，开始敲的太晚了，现在要备战期末考，等期末考结束再改改Book类吧。

主函数和界面

io流

操作

  1.   添加
  2. 修改
  3. 查找
  4. 排序
  5. 删除

基本类

  1. Book
  2. Borrow
  3. Reader

主函数和界面

  1.  
  2. package view;
  3. import functions.Libraryborrow;
  4. import functions.LibraryinformationManagement;
  5. import functions.LibraryreaderManagement;
  6.  
  7. import java.io.IOException;
  8. import java.text.ParseException;
  9.  
  10. public class Main {
  11.     public static void main(String[] args) throws IOException, ClassNotFoundException, ParseException {
  12.         boolean b = true;
  13.         while (b) {
  14.             System.out.println("*********************");
  15.             System.out.println("1、进入图书管理系统");
  16.             System.out.println("2、进入读者管理系统");
  17.             System.out.println("3、借阅、归还书籍");
  18.             System.out.println("4、退出系统");
  19.             System.out.println("*********************");
  20.             char c = Tool.tools.readMenuSelection();
  21.             switch (c) {
  22.                 case '1':
  23.                     LibraryinformationManagement.bookmew();
  24.                     break;
  25.                 case '2':
  26.                     LibraryreaderManagement.readermew();
  27.                     break;
  28.                 case '3':
  29.                     Libraryborrow.sentaku();
  30.                     break;
  31.                 case '4':
  32.                     System.out.println("谢谢使用");
  33.                     System.exit(0);
  34.                     break;
  35.             }
  36.         }
  37.  
  38.     }
  39. }
  40.  
  41.  
  1.  
  2. package functions;
  3. import EntityClass.Book;
  4. import java.io.IOException;
  5. import java.util.ArrayList;
  6. import java.util.Scanner;
  7.  
  8. import static functions.Add.AddBook;
  9. import static functions.Find.findbook;
  10.  
  11. public class LibraryinformationManagement {
  12.     public static void bookmew() throws IOException, ClassNotFoundException {
  13.         ArrayList<Book> array=new ArrayList<Book>();
  14.         while (true) {
  15.             System.out.println("1.添加图书");
  16.             System.out.println("2.查询图书");
  17.             System.out.println("3.图书排序");
  18.             System.out.println("4.修改或删除图书");
  19.             System.out.println("5.返回上一级");
  20.             char c = Tool.tools.readMenuSelection();
  21.             switch (c) {
  22.                 case '1':
  23.                     AddBook(array);
  24.                     break;
  25.                 case '2':
  26.                     findbook(array);
  27.                     break;
  28.                 case '3':
  29.                     sort.sentakusort();
  30.                     break;
  31.                 case '4':
  32.                     sentaku1();
  33.                     Change.change1();
  34.                     break;
  35.                 case '5':
  36.                     return;
  37.             }
  38.         }
  39.     }
  40.     public static void sentaku1() throws IOException{
  41.         System.out.println("您要进行修改还是删除？："+"\n"+"1、修改\n2、删除");
  42.         int s;
  43.         Scanner sc = new Scanner(System.in);
  44.         while (true)
  45.         {
  46.             s = sc.nextInt();
  47.             if(s!=1&&s!=2)
  48.                 System.out.println("输入有误，请重新输入");
  49.             else break;
  50.         }
  51.  
  52.         switch (s){
  53.             case 1:
  54.                 Change.sentakuchange1();
  55.                 break;
  56.             case 2:
  57.                 Delete.sentakudelete1();
  58.                 break;
  59.         }
  60.     }
  61.  
  62. }
  63.  
  64.  
  1. package functions;
  2.  
  3. import EntityClass.Reader;
  4. import java.io.IOException;
  5. import java.util.ArrayList;
  6. import java.util.Scanner;
  7.  
  8. public class LibraryreaderManagement {
  9.     public static void readermew() throws IOException, ClassNotFoundException {
  10.         ArrayList<Reader> array=new ArrayList<Reader>();
  11.         while (true) {
  12.             System.out.println("1.添加读者信息");
  13.             System.out.println("2.查询读者信息");
  14.             System.out.println("3.读者信息排序");
  15.             System.out.println("4.修改或删除读者信息");
  16.             System.out.println("5.返回上一级");
  17.             Scanner sc = new Scanner(System.in);
  18.             String line = sc.nextLine();
  19.             switch (line) {
  20.                 case "1":
  21.                     Add.AddReader(array);
  22.                     break;
  23.                 case "2":
  24.                     Find.findreader(array);
  25.                     break;
  26.                 case "3":
  27.                     sort.sentakusortreader();
  28.                     break;
  29.                 case "4":
  30.                     sentaku1();
  31.                     break;
  32.                 case "5":
  33.                     return;
  34.             }
  35.         }
  36.     }
  37.     public static void sentaku1() throws IOException{
  38.         System.out.println("您要进行修改还是删除？："+"\n"+"1、修改\n2、删除");
  39.         int s;
  40.         Scanner sc = new Scanner(System.in);
  41.         while (true)
  42.         {
  43.             s = sc.nextInt();
  44.             if(s!=1&&s!=2)
  45.                 System.out.println("输入有误，请重新输入");
  46.             else break;
  47.         }
  48.  
  49.         switch (s){
  50.             case 1:
  51.                 Change.change3();
  52.                 break;
  53.             case 2:
  54.                 Delete.detelebook3();
  55.                 break;
  56.         }
  57.     }
  58. }

io流

  1. package functions;
  2.  
  3. import EntityClass.Book;
  4. import EntityClass.Borrow;
  5. import EntityClass.Reader;
  6.  
  7. import java.io.BufferedReader;
  8. import java.io.FileReader;
  9. import java.io.IOException;
  10. import java.util.ArrayList;
  11. import java.util.Scanner;
  12.  
  13. import static java.lang.Integer.parseInt;
  14.  
  15. public class io {
  16.     public static ArrayList inbook() throws IOException {
  17.         FileReader fr = new FileReader("myFile\\book.txt");
  18.         BufferedReader br = new BufferedReader(fr);
  19.         ArrayList<Book> array = new ArrayList<Book>();
  20.         String line;
  21.         while ((line = br.readLine()) != null) {
  22.             String[] strArray = line.split(",");
  23.             Book book = new Book();
  24.             book.setNum(parseInt(strArray[0]));
  25.             book.setName(strArray[1]);
  26.             book.setAuthor(strArray[2]);
  27.             book.setPrice(strArray[3]);
  28.             book.setQuantity(parseInt(strArray[4]));
  29.             book.setDate(strArray[5]);
  30.             book.setPress(strArray[6]);
  31.             array.add(book);
  32.         }
  33.         br.close();
  34.         fr.close();
  35.         return array;
  36.     }
  37.  
  38.     public static ArrayList inreader() throws IOException {
  39.         FileReader fr = new FileReader("myFile\\reader.txt");
  40.         BufferedReader br = new BufferedReader(fr);
  41.         ArrayList<Reader> array = new ArrayList<Reader>();
  42.         String line;
  43.         while ((line = br.readLine()) != null) {
  44.             String[] strArray = line.split(",");
  45.             Reader reader = new Reader();
  46.             reader.setNum(Integer.parseInt(strArray[0]));
  47.             reader.setName(strArray[1]);
  48.             reader.setCollege(strArray[2]);
  49.             reader.setClass(strArray[3]);
  50.             array.add(reader);
  51.         }
  52.         br.close();
  53.         fr.close();
  54.         return array;
  55.     }
  56.  
  57.     public static ArrayList inborrow() throws IOException {
  58.         FileReader fr = new FileReader("myFile\\borrow.txt");
  59.         BufferedReader br = new BufferedReader(fr);
  60.         ArrayList<Borrow> array = new ArrayList<Borrow>();
  61.         String line;
  62.         while ((line = br.readLine()) != null) {
  63.             String[] strArray = line.split(",");
  64.             Borrow borrow = new Borrow();
  65.             borrow.setNum1(parseInt(strArray[0]));
  66.             borrow.setName(strArray[1]);
  67.             borrow.setNum2(parseInt(strArray[2]));
  68.             borrow.setBookname(strArray[3]);
  69.             borrow.setBorrowdate(strArray[4]);
  70.             borrow.setShouldreturndate(strArray[5]);
  71.             borrow.setReturndate(strArray[6]);
  72.             array.add(borrow);
  73.         }
  74.         br.close();
  75.         fr.close();
  76.         return array;
  77.     }
  78. }
  79.  
  80.

操作

1.添加

  1. package functions;
  2.  
  3. import EntityClass.Book;
  4. import EntityClass.Reader;
  5.  
  6. import java.io.File;
  7. import java.io.FileWriter;
  8. import java.io.IOException;
  9. import java.util.ArrayList;
  10. import java.util.Scanner;
  11.  
  12. public class Add {
  13.  
  14.     //图书信息添加
  15.     public static void AddBook(ArrayList<Book>arrayList) throws IOException,ClassNotFoundException{
  16.         ArrayList<Book> array1=new ArrayList<Book>();
  17.         File file =new File("myFile");
  18.         file.mkdirs();
  19.         FileWriter fw=new FileWriter("myFile\\book.txt",true);
  20.         Scanner sc=new Scanner(System.in);
  21.         System.out.println("请输入书名：");
  22.         String name=sc.nextLine();
  23.         fw.write(name);
  24.         System.out.println("请输入书号：");
  25.         String n = sc.nextLine();
  26.         int num=Integer.parseInt(n);
  27.         fw.write(num);
  28.         System.out.println("请输入作者：");
  29.         String author=sc.nextLine();
  30.         fw.write(author);
  31.         System.out.println("请输入出版社：");
  32.         String press=sc.nextLine();
  33.         fw.write(press);
  34.         System.out.println("请输入出版时间：");
  35.         String date=sc.nextLine();
  36.         fw.write(date);
  37.         System.out.println("请输入数量：");
  38.         int quantity=sc.nextInt();
  39.         fw.write(date);
  40.         System.out.println("请输入价格：");
  41.         sc.nextLine();
  42.         String price=sc.nextLine();
  43.         fw.write(price);
  44.         Book s=new Book();
  45.         s.setName(name);
  46.         s.setAuthor(author);
  47.         s.setDate(date);
  48.         s.setNum(num);
  49.         s.setPress(press);
  50.         s.setPrice(price);
  51.         s.setQuantity(quantity);
  52.         array1.add(s);
  53.         for(int i=0;i<array1.size();i++) {
  54.             Book a=new Book();
  55.             a=array1.get(i);
  56.             fw.write(a.getNum()+","+a.getName()+","+a.getAuthor()+","+a.getPrice()+","+a.getQuantity()+","+a.getDate()+","+a.getPress()+"\r\n");
  57.         }
  58.         System.out.println("添加图书成功！");
  59.         fw.close();
  60.     }
  61.     //读者信息添加
  62.     public static void AddReader(ArrayList<Reader>arrayList) throws IOException,ClassNotFoundException{
  63.         ArrayList<Reader> array1=new ArrayList<Reader>();
  64.         File file =new File("myFile");
  65.         file.mkdirs();
  66.         FileWriter fw=new FileWriter("myFile\\reader.txt",true);
  67.         Scanner sc=new Scanner(System.in);
  68.         System.out.println("请输入姓名：");
  69.         String name=sc.nextLine();
  70.         System.out.println("请输入学号：");
  71.         String n = sc.nextLine();
  72.         int num=Integer.parseInt(n);
  73.         System.out.println("请输入学院：");
  74.         String college=sc.nextLine();
  75.         System.out.println("请输入专业班级：");
  76.         String Classs=sc.nextLine();
  77.         Reader s=new Reader();
  78.         s.setName(name);
  79.         s.setNum(num);
  80.         s.setCollege(college);
  81.         s.setClass(Classs);
  82.         array1.add(s);
  83.         for(int i=0;i<array1.size();i++) {
  84.             Reader a=new Reader();
  85.             a=array1.get(i);
  86.             fw.write(a.getNum()+","+a.getName()+","+a.getCollege()+","+a.getClasss()+"\r\n");
  87.         }
  88.         System.out.println("添加读者信息成功！");
  89.         fw.close();
  90.     }
  91.  
  92.  
  93. }

2.修改

  1. package functions;
  2.  
  3. import EntityClass.Book;
  4. import EntityClass.Reader;
  5.  
  6. import java.io.BufferedWriter;
  7. import java.io.FileWriter;
  8. import java.io.IOException;
  9. import java.util.ArrayList;
  10. import java.util.Scanner;
  11.  
  12. public class Change {
  13.     public static void sentakuchange1() throws IOException{
  14.         System.out.println("您要选择哪种方法进行修改："+"\n"+"1、使用书名\n2、使用书号");
  15.         int s;
  16.         Scanner sc = new Scanner(System.in);
  17.         while (true)
  18.         {
  19.             s = sc.nextInt();
  20.             if(s!=1&&s!=2)
  21.                 System.out.println("输入有误，请重新输入");
  22.             else break;
  23.         }
  24.  
  25.         switch (s){
  26.             case 1:
  27.                 change1();
  28.                 break;
  29.             case 2:
  30.                 change2();
  31.                 break;
  32.         }
  33.     }
  34.     public static void change1() throws IOException{
  35.         //按照书籍名修改书籍
  36.         System.out.println("请输入要修改的书名：");
  37.         ArrayList<Book> array1=io.inbook();
  38.         ArrayList<Book> array2 = null;
  39.         boolean bool=false;
  40.         int n=0;
  41.         Scanner sc=new Scanner(System.in);
  42.         String line=sc.nextLine();
  43.         for(int i=0;i<array1.size();i++)
  44.         {
  45.             Book a=new Book();
  46.             a=array1.get(i);
  47.             if(a.getName().equals(line)){
  48.                 System.out.println("您要找的书籍是：\n"+a.getNum() + "," + a.getName() + "," + a.getAuthor() + "," + a.getPrice() + "," + a.getQuantity() + "," + a.getDate() + "," + a.getPress());
  49.                 n=i;
  50.                 bool=true;
  51.             }
  52.         }
  53.         if(bool==false){
  54.             System.out.println("您要查找的书籍不存在！");
  55.             return;
  56.         }
  57.         System.out.println("请输入修改后的书名：");
  58.         String name=sc.nextLine();
  59.         System.out.println("请输入修改后的书号(仅能输入数字)：");
  60.         String h = sc.nextLine();
  61.         int num=Integer.parseInt(h);
  62.         System.out.println("请输入修改后的作者：");
  63.         String author=sc.nextLine();
  64.         System.out.println("请输入修改后的出版社：");
  65.         String press=sc.nextLine();
  66.         System.out.println("请输入修改后的出版时间：");
  67.         String date=sc.nextLine();
  68.         System.out.println("请输入修改后的数量：");
  69.         int quantity=sc.nextInt();
  70.         System.out.println("请输入修改后的价格：");
  71.         String price=sc.nextLine();
  72.         Book s=new Book();
  73.         s.setName(name);
  74.         s.setAuthor(author);
  75.         s.setDate(date);
  76.         s.setNum(num);
  77.         s.setPress(press);
  78.         s.setPrice(price);
  79.         s.setQuantity(quantity);
  80.         array1.set(n,s);
  81.         FileWriter fr=new FileWriter("myFile\\book.txt");
  82.         BufferedWriter br=new BufferedWriter(fr);
  83.         for(int i=0;i<array1.size();i++) {
  84.             Book a=new Book();
  85.             a=array1.get(i);
  86.             br.write(a.getNum()+","+a.getName()+","+a.getAuthor()+","+a.getPrice()+","+a.getQuantity()+","+a.getDate()+","+a.getPress()+"\r\n");
  87.         }
  88.         System.out.println("修改图书信息成功！");
  89.         System.out.println("修改后的书籍信息：\n"+s.getNum() + "," + s.getName() + "," + s.getAuthor() + "," + s.getPrice() + "," + s.getQuantity() + "," + s.getDate() + "," + s.getPress());
  90.         br.close();
  91.         fr.close();
  92.     }
  93.     public static void change2() throws IOException{
  94.         //按照书号修改书籍
  95.         System.out.println("请输入要修改的书号(仅能输入数字)：");
  96.         ArrayList<Book> array1=io.inbook();
  97.         ArrayList<Book> array2 = null;
  98.         boolean bool=false;
  99.         int n=0;
  100.         Scanner sc=new Scanner(System.in);
  101.         int line=sc.nextInt();
  102.         for(int i=0;i<array1.size();i++)
  103.         {
  104.             Book a=new Book();
  105.             a=array1.get(i);
  106.             if(a.getNum()==line){
  107.                 System.out.println("您要找的书籍是：\n"+a.getNum() + "," + a.getName() + "," + a.getAuthor() + "," + a.getPrice() + "," + a.getQuantity() + "," + a.getDate() + "," + a.getPress());
  108.                 array2.add(a);
  109.                 n=i;
  110.                 bool=true;
  111.             }
  112.         }
  113.         if(bool==false){
  114.             System.out.println("您要查找的书籍不存在！");
  115.             return;
  116.         }
  117.         System.out.println("请输入修改后的书名：");
  118.         String name=sc.nextLine();
  119.         System.out.println("请输入修改后的书号(仅能输入数字)：");
  120.         int num=sc.nextInt();
  121.         System.out.println("请输入修改后的作者：");
  122.         String author=sc.nextLine();
  123.         System.out.println("请输入修改后的出版社：");
  124.         String press=sc.nextLine();
  125.         System.out.println("请输入修改后的出版时间：");
  126.         int quantity=sc.nextInt();
  127.         System.out.println("请输入修改后的数量：");
  128.         String date=sc.nextLine();
  129.         System.out.println("请输入修改后的价格：");
  130.         String price=sc.nextLine();
  131.         Book s=new Book();
  132.         s.setName(name);
  133.         s.setAuthor(author);
  134.         s.setDate(date);
  135.         s.setNum(num);
  136.         s.setPress(press);
  137.         s.setPrice(price);
  138.         s.setQuantity(quantity);
  139.         array1.set(n,s);
  140.         FileWriter fr=new FileWriter("myFile\\book.txt");
  141.         BufferedWriter br=new BufferedWriter(fr);
  142.         for(int i=0;i<array1.size();i++) {
  143.             Book a=new Book();
  144.             a=array1.get(i);
  145.             br.write(a.getNum()+","+a.getName()+","+a.getAuthor()+","+a.getPrice()+","+a.getQuantity()+","+a.getDate()+","+a.getPress()+"\r\n");
  146.         }
  147.         System.out.println("修改图书信息成功！");
  148.         System.out.println("修改后的书籍信息：\n"+s.getNum() + "," + s.getName() + "," + s.getAuthor() + "," + s.getPrice() + "," + s.getQuantity() + "," + s.getDate() + "," + s.getPress());
  149.         br.close();
  150.         fr.close();
  151.     }
  152.  
  153.     public static void change3() throws IOException{
  154.         //按照学号+姓名修改信息
  155.         ArrayList<Reader> array1=io.inreader();
  156.         ArrayList<Reader> array2 = null;
  157.         boolean bool=false;
  158.         int n=0;
  159.         Scanner sc=new Scanner(System.in);
  160.         System.out.println("请输入要修改的学号(仅能输入数字):");
  161.         int nu=sc.nextInt();
  162.         System.out.println("请输入要修改的姓名:");
  163.         String l=sc.nextLine();
  164.         String line=sc.nextLine();
  165.         for(int i=0;i<array1.size();i++)
  166.         {
  167.             Reader a=new Reader();
  168.             a=array1.get(i);
  169.             if(a.getName().equals(line)&&a.getNum()==nu){
  170.                 System.out.println("您的信息是：\n"+a.getNum() + "," + a.getName() + "," + a.getCollege() + "," + a.getClasss());
  171.                 n=i;
  172.                 bool=true;
  173.             }
  174.         }
  175.         if(bool==false){
  176.             System.out.println("您要查找的学生信息不存在！");
  177.             return;
  178.         }
  179.         System.out.println("请输入修改后的姓名：");
  180.         String name=sc.nextLine();
  181.         System.out.println("请输入修改后的学号(仅能输入数字)：");
  182.         int h = Integer.parseInt(sc.nextLine());
  183.         System.out.println("请输入修改后的学院：");
  184.         String College=sc.nextLine();
  185.         System.out.println("请输入修改后的专业班级：");
  186.         String Classs=sc.nextLine();
  187.         Reader s=new Reader();
  188.         s.setName(name);
  189.         s.setNum(h);
  190.         s.setCollege(College);
  191.         s.setClass(Classs);
  192.         array1.set(n,s);
  193.         FileWriter fr=new FileWriter("myFile\\reader.txt");
  194.         BufferedWriter br=new BufferedWriter(fr);
  195.         for(int i=0;i<array1.size();i++) {
  196.             Reader a=new Reader();
  197.             a=array1.get(i);
  198.             br.write(a.getNum()+","+a.getName()+","+a.getCollege()+","+a.getClasss()+"\r\n");
  199.         }
  200.         System.out.println("修改读者信息成功！");
  201.         System.out.print("修改后的读者信息：\n"+s.getNum() + "," + s.getName() + "," + s.getCollege() + "," + s.getClasss() );
  202.         br.close();
  203.         fr.close();
  204.     }
  205. }

3.查找

  1. package functions;
  2.  
  3. import EntityClass.Book;
  4. import EntityClass.Borrow;
  5. import EntityClass.Reader;
  6.  
  7. import java.io.IOException;
  8. import java.util.ArrayList;
  9. import java.util.Scanner;
  10.  
  11. public class Find {
  12.     public static void findbook(ArrayList<Book> arrayList) throws IOException {
  13.         System.out.println("1、按书名查询");
  14.         System.out.println("2、按作者名查询");
  15.         System.out.println("3、按出版社查询");
  16.         Scanner sc = new Scanner(System.in);
  17.         int s = sc.nextInt();
  18.         switch (s) {
  19.             case 1:
  20.                 findbook1();
  21.                 break;
  22.             case 2:
  23.                 findbook2();
  24.                 break;
  25.             case 3:
  26.                 findbook3();
  27.                 break;
  28.         }
  29.     }
  30.     public static void findbook1() throws IOException{
  31.         System.out.println("请输入书名：");
  32.         Scanner sc=new Scanner(System.in);
  33.         String line=sc.nextLine();
  34.         ArrayList<Book> array1=io.inbook();
  35.         boolean bool=false;
  36.         for(int i=0;i<array1.size();i++)
  37.         {
  38.             Book a=new Book();
  39.             a=array1.get(i);
  40.             if(a.getName().equals(line)){
  41.                 System.out.println("您要找的书籍是：\n"+a.getNum() + "," + a.getName() + "," + a.getAuthor() + "," + a.getPrice() + "," + a.getQuantity() + "," + a.getDate() + "," + a.getPress());
  42.                 bool=true;
  43.             }
  44.         }
  45.         if(bool==false){
  46.             System.out.println("您要查找的书籍不存在！");
  47.         }
  48.     }
  49.  
  50.     public static void findbook2() throws IOException{
  51.         System.out.println("请输入作者名：");
  52.         Scanner sc=new Scanner(System.in);
  53.         String line=sc.nextLine();
  54.         ArrayList<Book> array1=io.inbook();
  55.         boolean bool=false;
  56.         for(int i=0;i<array1.size();i++)
  57.         {
  58.             Book a=new Book();
  59.             a=array1.get(i);
  60.             if(a.getAuthor().equals(line)){
  61.                 System.out.println("您要找的书籍是：\n"+a.getNum() + "," + a.getName() + "," + a.getAuthor() + "," + a.getPrice() + "," + a.getQuantity() + "," + a.getDate() + "," + a.getPress());
  62.                 bool=true;
  63.             }
  64.         }
  65.         if(bool==false){
  66.             System.out.println("您要查找的书籍不存在！");
  67.         }
  68.     }
  69.     public static void findbook3() throws IOException{
  70.         System.out.println("请输入出版社：");
  71.         Scanner sc=new Scanner(System.in);
  72.         String line=sc.nextLine();
  73.         ArrayList<Book> array1=io.inbook();
  74.         boolean bool=false;
  75.         for(int i=0;i<array1.size();i++)
  76.         {
  77.             Book a=new Book();
  78.             a=array1.get(i);
  79.             if(a.getPress().equals(line)){
  80.                 System.out.println("您要找的书籍是：\n"+a.getNum() + "," + a.getName() + "," + a.getAuthor() + "," + a.getPrice() + "," + a.getQuantity() + "," + a.getDate() + "," + a.getPress());
  81.                 bool=true;
  82.             }
  83.         }
  84.         if(bool==false){
  85.             System.out.println("您要查找的书籍不存在！");
  86.         }
  87.     }
  88.     public static void findreader(ArrayList<Reader> arrayList) throws IOException {
  89.         System.out.println("1、按学号查询");
  90.         System.out.println("2、按姓名查询");
  91.         System.out.println("3、按专业班级查询");
  92.         Scanner sc = new Scanner(System.in);
  93.         int s = sc.nextInt();
  94.         switch (s) {
  95.             case 1:
  96.                 findreader1();
  97.                 break;
  98.             case 2:
  99.                 findreader2();
  100.                 break;
  101.             case 3:
  102.                 findreader3();
  103.                 break;
  104.         }
  105.     }
  106.  
  107.     public static void findreader1() throws IOException{
  108.         System.out.println("请输入学号：");
  109.         Scanner sc=new Scanner(System.in);
  110.         String lin=sc.nextLine();
  111.         int line=Integer.parseInt(lin);
  112.         ArrayList<Reader> array1=io.inreader();
  113.         boolean bool=false;
  114.         for(int i=0;i<array1.size();i++)
  115.         {
  116.             Reader a=new Reader();
  117.             a=array1.get(i);
  118.             if(a.getNum()==line){
  119.                 System.out.println("您要找的学生信息是：\n"+a.getNum() + "," + a.getName() + "," + a.getCollege() + "," + a.getClasss());
  120.                 bool=true;
  121.             }
  122.         }
  123.         if(bool==false){
  124.             System.out.println("您要查找的学生信息不存在！");
  125.         }
  126.     }
  127.     public static void findreader2() throws IOException{
  128.         System.out.println("请输入姓名：");
  129.         Scanner sc=new Scanner(System.in);
  130.         String line=sc.nextLine();
  131.         ArrayList<Reader> array1=io.inreader();
  132.         boolean bool=false;
  133.         for(int i=0;i<array1.size();i++)
  134.         {
  135.             Reader a=new Reader();
  136.             a=array1.get(i);
  137.             if(a.getName().equals(line)){
  138.                 System.out.println("您要找的学生信息是：\n"+a.getNum() + "," + a.getName() + "," + a.getCollege() + "," + a.getClasss());
  139.                 bool=true;
  140.             }
  141.         }
  142.         if(bool==false){
  143.             System.out.println("您要查找的学生信息不存在！");
  144.         }
  145.     }
  146.     public static void findreader3() throws IOException{
  147.         System.out.println("请输入专业班级：");
  148.         Scanner sc=new Scanner(System.in);
  149.         String line=sc.nextLine();
  150.         ArrayList<Reader> array1=io.inreader();
  151.         boolean bool=false;
  152.         for(int i=0;i<array1.size();i++)
  153.         {
  154.             Reader a=new Reader();
  155.             a=array1.get(i);
  156.             if(a.getClasss().equals(line)){
  157.                 System.out.println("您要找的学生信息是：\n"+a.getNum() + "," + a.getName() + "," + a.getCollege() + "," + a.getClasss());
  158.                 bool=true;
  159.             }
  160.         }
  161.         if(bool==false){
  162.             System.out.println("您要查找的学生信息不存在！");
  163.         }
  164.     }
  165.     public static void findborrow(ArrayList<Borrow> arrayList) throws IOException {
  166.         System.out.println("1、按学号查询");
  167.         System.out.println("2、按书名查询");
  168.         System.out.println("3、按书号查询");
  169.         Scanner sc = new Scanner(System.in);
  170.         int s = sc.nextInt();
  171.         switch (s) {
  172.             case 1:
  173.                 findborrow1();
  174.                 break;
  175.             case 2:
  176.                 findborrow2();
  177.                 break;
  178.             case 3:
  179.                 findborrow2();
  180.                 break;
  181.         }
  182.     }
  183.  
  184.     public static void findborrow1() throws IOException{
  185.         System.out.println("请输入学号：");
  186.         Scanner sc=new Scanner(System.in);
  187.         String line=sc.nextLine();
  188.         ArrayList<Borrow> array1=io.inborrow();
  189.         boolean bool=false;
  190.         for(int i=0;i<array1.size();i++)
  191.         {
  192.             Borrow a=new Borrow();
  193.             a=array1.get(i);
  194.             if(a.getNum1()==Integer.parseInt(line)){
  195.                 System.out.println("您要找的书籍是：\n"+a.getNum1()+","+a.getName()+","+a.getNum2()+","+a.getBookname()+","+a.getBorrowdate()+","+a.getShouldreturndate()+","+a.getReturndate());
  196.                 bool=true;
  197.             }
  198.         }
  199.         if(bool==false){
  200.             System.out.println("您要查找的借阅信息不存在！");
  201.         }
  202.     }
  203.     public static void findborrow2() throws IOException{
  204.         System.out.println("请输入书名：");
  205.         Scanner sc=new Scanner(System.in);
  206.         String line=sc.nextLine();
  207.         ArrayList<Borrow> array1=io.inborrow();
  208.         boolean bool=false;
  209.         for(int i=0;i<array1.size();i++)
  210.         {
  211.             Borrow a=new Borrow();
  212.             a=array1.get(i);
  213.             if(a.getBookname().equals(line)){
  214.                 System.out.println("您要查询的借阅信息是：\n"+a.getNum1()+","+a.getName()+","+a.getNum2()+","+a.getBookname()+","+a.getBorrowdate()+","+a.getShouldreturndate()+","+a.getReturndate());
  215.                 bool=true;
  216.             }
  217.         }
  218.         if(bool==false){
  219.             System.out.println("您要查找的借阅信息不存在！");
  220.         }
  221.     }
  222.     public static void findborrow3() throws IOException{
  223.         System.out.println("请输入书号：");
  224.         Scanner sc=new Scanner(System.in);
  225.         String line=sc.nextLine();
  226.         ArrayList<Book> array1=io.inborrow();
  227.         boolean bool=false;
  228.         for(int i=0;i<array1.size();i++)
  229.         {
  230.             Borrow a=new Borrow();
  231.             a=array1.get(i);
  232.             if(a.getNum2()==Integer.parseInt(line)){
  233.                 System.out.println("您要查询的借阅信息是：\n"+a.getNum1()+","+a.getName()+","+a.getNum2()+","+a.getBookname()+","+a.getBorrowdate()+","+a.getShouldreturndate()+","+a.getReturndate());
  234.                 bool=true;
  235.             }
  236.         }
  237.         if(bool==false){
  238.             System.out.println("您要查找的借阅信息不存在！");
  239.         }
  240.     }
  241. }
  242.

4.排序

  1.  
  2. package functions;
  3.  
  4. import EntityClass.Book;
  5. import EntityClass.Reader;
  6.  
  7. import java.io.IOException;
  8. import java.util.ArrayList;
  9. import java.util.Collections;
  10. import java.util.Scanner;
  11.  
  12. public class sort { 
  13.         public static void sentakusort() throws IOException {
  14.         System.out.println("您要选择哪种方法进行修改："+"\n"+"1、使用书号\n2、使用书名");
  15.         int s;
  16.         Scanner sc = new Scanner(System.in);
  17.         while (true)
  18.         {
  19.             s = sc.nextInt();
  20.             if(s!=1&&s!=2)
  21.                 System.out.println("输入有误，请重新输入");
  22.             else break;
  23.         }
  24.  
  25.         switch (s){
  26.             case 1:
  27.                 sortingBook1(io.inbook());
  28.                 break;
  29.             case 2:
  30.                 sortingBook2(io.inbook());
  31.                 break;
  32.         }
  33.     }
  34.     //使用书号排列输出
  35.     public static void sortingBook1(ArrayList<Book> array) {
  36.        int[] arr = new int[100];
  37.        for (int i = 0; i < array.size(); i++) {
  38.            Book b = array.get(i);
  39.             arr[i] = b.getNum();
  40.        }
  41.         for (int i1 = 0; i1 < array.size() - 1; i1++) {
  42.             for (int j = 0; j < array.size() - 1 - i1; j++) {
  43.                 Book book1 = array.get(j);
  44.                 Book book2 = array.get(j+1);
  45.                 if (book1.getNum()>book2.getNum()) {
  46.                     int temp=arr[j];
  47.                    arr[j]=arr[j+1];
  48.                    arr[j+1]=temp;
  49.                     Collections.swap(array, j, j + 1);
  50.                 }
  51.             }
  52.         }
  53.         System.out.println("已完成排序+\n排序后的列表：\n");
  54.         for (int i = 0; i < array.size(); i++) {
  55.             Book a = array.get(i);
  56.             System.out.println(a.getNum()+","+a.getName()+","+a.getAuthor()+","+a.getPrice()+","+a.getQuantity()+","+a.getDate()+","+a.getPress());
  57.         }
  58.     }
  59.     //使用书名进行排序
  60.     public static void sortingBook2(ArrayList<Book> array) {
  61.        int[] arr = new int[100];
  62.         for (int i = 0; i < array.size(); i++) {
  63.            Book b = array.get(i);
  64.             arr[i] = b.getNum();
  65.        }
  66.         for (int i1 = 0; i1 < array.size() - 1; i1++) {
  67.             for (int j = 0; j < array.size() - 1 - i1; j++) {
  68.                 Book book1 = array.get(j);
  69.                 Book book2 = array.get(j+1);
  70.                 int bool= book1.getName().compareTo(book2.getName());
  71.                 if (bool>0) {
  72.                    int temp=arr[j];
  73.                    arr[j]=arr[j+1];
  74.                    arr[j+1]=temp;
  75.                     Collections.swap(array, j, j + 1);
  76.                 }
  77.             }
  78.         }
  79.         System.out.println("已完成排序\n排序后的列表：\n");
  80.         for (int i = 0; i < array.size(); i++) {
  81.             Book a = array.get(i);
  82.             System.out.println(a.getNum()+","+a.getName()+","+a.getAuthor()+","+a.getPrice()+","+a.getQuantity()+","+a.getDate()+","+a.getPress());
  83.         }
  84.     }
  85.     public static void sentakusortreader() throws IOException {
  86.         System.out.println("您要选择哪种方法进行修改："+"\n"+"1、使用学号\n2、使用学院");
  87.         int s;
  88.         Scanner sc = new Scanner(System.in);
  89.         while (true)
  90.         {
  91.             s = sc.nextInt();
  92.             if(s!=1&&s!=2)
  93.                 System.out.println("输入有误，请重新输入");
  94.             else break;
  95.         }
  96.  
  97.         switch (s){
  98.             case 1:
  99.                 sortingreader1(io.inreader());
  100.                 break;
  101.             case 2:
  102.                 sortingreader2(io.inreader());
  103.                 break;
  104.         }
  105.     }
  106.  
  107.     public static void sortingreader1(ArrayList<Reader> array) { //使用学号排列输出
  108.         int[] arr = new int[100];
  109.         for (int i = 0; i < array.size(); i++) {
  110.             Book b = array.get(i);
  111.            arr[i] = b.getNum();
  112.         }
  113.         for (int i1 = 0; i1 < array.size() - 1; i1++) {
  114.             for (int j = 0; j < array.size() - 1 - i1; j++) {
  115.                 Reader book1 = array.get(j);
  116.                 Reader book2 = array.get(j+1);
  117.                 if (book1.getNum()>book2.getNum()) {
  118.                     int temp=arr[j];
  119.                     arr[j]=arr[j+1];
  120.                    arr[j+1]=temp;
  121.                     Collections.swap(array, j, j + 1);
  122.                 }
  123.             }
  124.         }
  125.         System.out.println("已完成排序\n排序后的列表：\n");
  126.         for (int i = 0; i < array.size(); i++) {
  127.             Reader a = array.get(i);
  128.             System.out.println(a.getNum()+","+a.getName()+","+a.getCollege()+","+a.getCollege());
  129.         }
  130.     }
  131.  
  132.     public static void sortingreader2(ArrayList<Reader> array) {//使用学院进行排序
  133.         int[] arr = new int[100];
  134.         for (int i = 0; i < array.size(); i++) {
  135.             Book b = array.get(i);
  136.             arr[i] = b.getNum();
  137.         }
  138.         for (int i1 = 0; i1 < array.size() - 1; i1++) {
  139.             for (int j = 0; j < array.size() - 1 - i1; j++) {
  140.                 Reader book1 = array.get(j);
  141.                 Reader book2 = array.get(j+1);
  142.                 int bool= book1.getName().compareTo(book2.getName());
  143.                 if (bool>0) {
  144.                     int temp=arr[j];
  145.                     arr[j]=arr[j+1];
  146.                     arr[j+1]=temp;
  147.                     Collections.swap(array, j, j + 1);
  148.                 }
  149.             }
  150.         }
  151.         System.out.println("已完成排序\n排序后的列表：\n");
  152.         for (int i = 0; i < array.size(); i++) {
  153.             Reader a = array.get(i);
  154.             System.out.println(a.getNum()+","+a.getName()+","+a.getCollege()+","+a.getCollege());
  155.         }
  156.     }
  157. }
  158.

5.删除

  1. package functions;
  2.  
  3. import EntityClass.Book;
  4. import EntityClass.Reader;
  5.  
  6. import java.io.BufferedWriter;
  7. import java.io.FileWriter;
  8. import java.io.IOException;
  9. import java.util.ArrayList;
  10. import java.util.Scanner;
  11.  
  12. public class Delete {
  13.     public static void sentakudelete1() throws IOException{
  14.         System.out.println("您要选择哪种方法进行删除？："+"\n"+"1、使用书名\n2、使用书号");
  15.         int s;
  16.         Scanner sc = new Scanner(System.in);
  17.         while (true)
  18.         {
  19.             s = sc.nextInt();
  20.             if(s!=1&&s!=2)
  21.                 System.out.println("输入有误，请重新输入");
  22.             else break;
  23.         }
  24.  
  25.         switch (s){
  26.             case 1:
  27.                 detelebook1();
  28.                 break;
  29.             case 2:
  30.                 detelebook2();
  31.                 break;
  32.         }
  33.     }
  34.     public static void detelebook1() throws IOException{
  35.         //用书名删除书籍
  36.         System.out.println("请输入书名：");
  37.         Scanner sc=new Scanner(System.in);
  38.         String line=sc.nextLine();
  39.         ArrayList<Book> array1=io.inbook();
  40.         boolean bool=false;
  41.         int n=0;
  42.         for(int i=0;i<array1.size();i++)
  43.         {
  44.             Book a=new Book();
  45.             a=array1.get(i);
  46.             if(a.getName().equals(line)){
  47.                 System.out.println("您要找的书籍是：\n"+a.getNum() + "," + a.getName() + "," + a.getAuthor() + "," + a.getPrice() + "," + a.getQuantity() + "," + a.getDate() + "," + a.getPress());
  48.                 n=i;
  49.                 bool=true;
  50.             }
  51.         }
  52.         if(bool==false){
  53.             System.out.println("您要查找的书籍不存在！");
  54.             return;
  55.         }
  56.         array1.remove(n);
  57.         System.out.println("删除成功！");
  58.         FileWriter fr=new FileWriter("myFile\\book.txt");
  59.         BufferedWriter br=new BufferedWriter(fr);
  60.         for(int i=0;i<array1.size();i++) {
  61.             Book a=new Book();
  62.             a=array1.get(i);
  63.             br.write(a.getNum()+","+a.getName()+","+a.getAuthor()+","+a.getPrice()+","+a.getQuantity()+","+a.getDate()+","+a.getPress()+"\r\n");
  64.         }
  65.         System.out.println("修改图书信息成功！");
  66.         br.close();
  67.         fr.close();
  68.     }
  69.     public static void detelebook2() throws IOException{//用书号删除书籍
  70.         System.out.println("请输入书号：");
  71.         Scanner sc=new Scanner(System.in);
  72.         int line=sc.nextInt();
  73.         ArrayList<Book> array1=io.inbook();
  74.         boolean bool=false;
  75.         int n=0;
  76.         for(int i=0;i<array1.size();i++)
  77.         {
  78.             Book a=new Book();
  79.             a=array1.get(i);
  80.             if(a.getNum()==line){
  81.                 System.out.println("您要找的书籍是：\n"+a.getNum() + "," + a.getName() + "," + a.getAuthor() + "," + a.getPrice() + "," + a.getQuantity() + "," + a.getDate() + "," + a.getPress());
  82.                 n=i;
  83.                 bool=true;
  84.             }
  85.         }
  86.         if(bool==false){
  87.             System.out.println("您要查找的书籍不存在！");
  88.             return;
  89.         }
  90.         ArrayList<Book> array2=new ArrayList<>();
  91.         for (int i = 0; i < array1.size() - 1; i++) {
  92.             if (i < n) {
  93.                 array2.set(i, array1.get(i));
  94.             } else {
  95.                 array2.set(i, array1.get(i + 1));
  96.             }
  97.         }
  98.         array1.remove(n);
  99.         System.out.println("删除成功！");
  100.         FileWriter fr=new FileWriter("myFile\\book.txt");
  101.         BufferedWriter br=new BufferedWriter(fr);
  102.         for(int i=0;i<array1.size();i++) {
  103.             Book a=new Book();
  104.             a=array1.get(i);
  105.             br.write(a.getNum()+","+a.getName()+","+a.getAuthor()+","+a.getPrice()+","+a.getQuantity()+","+a.getDate()+","+a.getPress()+"\r\n");
  106.         }
  107.         System.out.println("修改图书信息成功！");
  108.         br.close();
  109.         fr.close();
  110.     }
  111.     public static void detelebook3() throws IOException{//按照学号+姓名删除信息
  112.         ArrayList<Reader> array1=io.inreader();
  113.         ArrayList<Reader> array2 = null;
  114.         boolean bool=false;
  115.         int n=0;
  116.         Scanner sc=new Scanner(System.in);
  117.         System.out.println("请输入学号:");
  118.         int nu=sc.nextInt();
  119.         System.out.println("请输入姓名:");
  120.         String l=sc.nextLine();
  121.         String line=sc.nextLine();
  122.         for(int i=0;i<array1.size();i++)
  123.         {
  124.             Reader a=new Reader();
  125.             a=array1.get(i);
  126.             if(a.getName().equals(line)&&a.getNum()==nu){
  127.                 System.out.println("您的信息是：\n"+a.getNum() + "," + a.getName() + "," + a.getCollege() + "," + a.getClasss());
  128.                 n=i;
  129.                 bool=true;
  130.             }
  131.         }
  132.         if(bool==false){
  133.             System.out.println("您要查找的学生信息不存在！");
  134.             return;
  135.         }
  136.         array1.remove(n);
  137.         System.out.println("删除成功！");
  138.         FileWriter fr=new FileWriter("myFile\\reader.txt");
  139.         BufferedWriter br=new BufferedWriter(fr);
  140.         for(int i=0;i<array1.size();i++) {
  141.             Reader a=new Reader();
  142.             a=array1.get(i);
  143.             br.write(a.getNum()+","+a.getName()+","+a.getCollege()+","+a.getClasss()+"\r\n");
  144.         }
  145.         System.out.println("修改读者信息成功！");
  146.         br.close();
  147.         fr.close();
  148.     }
  149. }
  150.

基本类

1.Book

  1. package EntityClass;
  2.  
  3. public class Book extends Borrow {
  4.  
  5.     private  String name;//书名
  6.     private  String author;//作者
  7.     private  String price;//价格
  8.     private  int num;//书号
  9.     private  String press;//出版社
  10.     private  String date;//出版日期
  11.     private  int quantity;//存馆数量
  12.  
  13.  
  14.     public Book() {
  15.     }
  16.  
  17.     public Book(String name, String author, String price, int num, String press, String date, int quantity) {
  18.         this.name = name;
  19.         this.author = author;
  20.         this.price = price;
  21.         this.num = num;
  22.         this.press = press;
  23.         this.date = date;
  24.         this.quantity = quantity;
  25.     }
  26.  
  27.     public  String getName() {
  28.         return name;
  29.     }
  30.  
  31.     public String getAuthor() {
  32.         return author;
  33.     }
  34.  
  35.     public String getPrice() {
  36.         return price;
  37.     }
  38.  
  39.     public int getNum() {
  40.         return num;
  41.     }
  42.  
  43.     public String getPress() {
  44.         return press;
  45.     }
  46.  
  47.     public String getDate() {
  48.         return date;
  49.     }
  50.  
  51.     public int getQuantity() {
  52.         return quantity;
  53.     }
  54.  
  55.     public void setName(String name) {
  56.         this.name = name;
  57.     }
  58.  
  59.     public void setAuthor(String author) {
  60.         this.author = author;
  61.     }
  62.  
  63.     public void setPrice(String price) {
  64.         this.price = price;
  65.     }
  66.  
  67.     public void setNum(int num) {
  68.         this.num = num;
  69.     }
  70.  
  71.     public void setPress(String press) {
  72.         this.press = press;
  73.     }
  74.  
  75.     public void setDate(String date) {
  76.         this.date = date;
  77.     }
  78.  
  79.     public void setQuantity(int quantity) {
  80.         this.quantity = quantity;
  81.     }
  82.     
  83. }
  84.  
  85.

2.Borrow

  1.  
  2. package EntityClass;
  3. public class Borrow {
  4.     private String name;//姓名
  5.     private int num1; //学号
  6.     private int num2;//书号
  7.     private String bookname; //书名
  8.     private String borrowdate;//借阅日期
  9.     private String Shouldreturndate;//应还日期
  10.     private String returndate;//实际归还日期
  11.     public Borrow() {
  12.     }
  13.  
  14.     public Borrow(String name, int num1, int num2, String bookname, String borrowdate, String shouldreturndate, String returndate) {
  15.         this.name = name;
  16.         this.num1 = num1;
  17.         this.num2 = num2;
  18.         this.bookname = bookname;
  19.         this.borrowdate = borrowdate;
  20.         Shouldreturndate = shouldreturndate;
  21.         this.returndate = returndate;
  22.     }
  23.  
  24.     public String getName() {
  25.         return name;
  26.     }
  27.  
  28.     public int getNum1() {
  29.         return num1;
  30.     }
  31.  
  32.     public int getNum2() {
  33.         return num2;
  34.     }
  35.  
  36.     public String getBookname() {
  37.         return bookname;
  38.     }
  39.  
  40.     public String getBorrowdate() {
  41.         return borrowdate;
  42.     }
  43.  
  44.     public String getShouldreturndate() {
  45.         return Shouldreturndate;
  46.     }
  47.  
  48.     public String getReturndate() {
  49.         return returndate;
  50.     }
  51.  
  52.     public void setName(String name) {
  53.         this.name = name;
  54.     }
  55.  
  56.     public void setNum1(int num1) {
  57.         this.num1 = num1;
  58.     }
  59.  
  60.     public void setNum2(int num2) {
  61.         this.num2 = num2;
  62.     }
  63.  
  64.     public void setBookname(String bookname) {
  65.         this.bookname = bookname;
  66.     }
  67.  
  68.     public void setBorrowdate(String borrowdate) {
  69.         this.borrowdate = borrowdate;
  70.     }
  71.  
  72.     public void setShouldreturndate(String shouldreturndate) {
  73.         Shouldreturndate = shouldreturndate;
  74.     }
  75.  
  76.     public void setReturndate(String returndate) {
  77.         this.returndate = returndate;
  78.     }
  79. }

3.Reader

  1.  
  2. package EntityClass;
  3. public class Reader extends Book {
  4.     private  String name;//姓名
  5.     private  int num;//学号
  6.     private  String college;//学院专业
  7.     private  String Classs;//班级
  8.  
  9.     public Reader(String name, int num, String college, String aClass) {
  10.         this.name = name;
  11.         this.num = num;
  12.         this.college = college;
  13.         Classs = aClass;
  14.     }
  15.  
  16.     public Reader() {
  17.  
  18.     }
  19.  
  20.     public String getName() {
  21.         return name;
  22.     }
  23.  
  24.     public int getNum() {
  25.         return num;
  26.     }
  27.  
  28.     public String getCollege() {
  29.         return college;
  30.     }
  31.  
  32.     public String getClasss() {
  33.         return Classs;
  34.     }
  35.  
  36.     public void setName(String name) {
  37.         this.name = name;
  38.     }
  39.  
  40.     public void setNum(int num) {
  41.         this.num = num;
  42.     }
  43.  
  44.     public void setCollege(String college) {
  45.         this.college = college;
  46.     }
  47.  
  48.     public void setClass(String aClass) {
  49.         Classs = aClass;
  50.     }
  51. }

本文内容由网友自发贡献，转载请注明出处：https://www.wpsshop.cn/w/我家小花儿/article/detail/556108?site
推荐阅读
相关标签

Copyright © 2003-2013 www.wpsshop.cn 版权所有，并保留所有权利。

  

闽ICP备14008679号