图书管理系统

逃离我推掉我的手 2024-04-20 04:42 0阅读 0赞

![在这里插入图片描述][ffc0e471ff2144e9aea6a3a99ceb6213.png_pic_center]

> 作者简介： zoro-1，目前大一，正在学习Java，数据结构等  
> 作者主页： [zoro-1的主页][zoro-1]  
> 欢迎大家点赞 👍 收藏 ⭐ 加关注哦！💖💖

#### 图书管理系统 ####

*  book包
 *   *  Book
     *  BookList
 *  operation包
 *   *  Add
     *  Borrow
     *  Exit
     *  Find
     *  Io
     *  Return
     *  Show
 *  user包
 *   *  Max
     *  Min
     *  Users
 *  主函数

## book包 ##

### Book ###

public class Book {
        
    //书的各种属性
        private String name;
        private String author;
        private int price;
        private String type;
        private boolean isBorrowed;
    
        public Book(String name, String author, int price, String type) {
        
            this.name = name;
            this.author = author;
            this.price = price;
            this.type = type;
    
        }
    
        public String getName() {
        
            return name;
        }
    
        public void setName(String name) {
        
            this.name = name;
        }
    
        public String getAuthor() {
        
            return author;
        }
    
        public void setAuthor(String author) {
        
            this.author = author;
        }
    
        public int getPrice() {
        
            return price;
        }
    
        public void setPrice(int price) {
        
            this.price = price;
        }
    
        public String getType() {
        
            return type;
        }
    
        public void setType(String type) {
        
            this.type = type;
        }
    
        public boolean isBorrowed() {
        
            return isBorrowed;
        }
    
        public void setBorrowed(boolean borrowed) {
        
            isBorrowed = borrowed;
        }
    
        @Override
        public String toString() {
        
            return "Book{" +
                    "name='" + name + '\'' +
                    ", author='" + author + '\'' +
                    ", price=" + price +
                    ", type='" + type + '\'' +
                    ", isBorrowed=" + isBorrowed +
                    '}';
        }
    }

### BookList ###

public class BookList {
        
        private Book[] books ;
        private int usedSize;//记录当前书架上 实际存放的书的 数量
        private static final int DEFAULT_CAPACITY = 10;
    
        public BookList() {
        
            this.books = new Book[DEFAULT_CAPACITY];
            //放好书！！
            this.books[0] = new Book("三国演义","罗贯中",10,"小说");
            this.books[1] = new Book("西游记","吴承恩",9,"小说");
            this.books[2] = new Book("红楼梦","曹雪芹",19,"小说");
    
            this.usedSize = 3;
        }
    
        public int getUsedSize() {
        
            return usedSize;
        }
    
        public void setUsedSize(int usedSize) {
        
            this.usedSize = usedSize;
        }
    
        public Book getBook(int pos) {
        
            return books[pos];
        }
    
        public void setBooks(int pos,Book book) {
        
            books[pos] = book;
        }
    
    
        public Book[] getBooks() {
        
            return books;
        }
    }

## operation包 ##

### Add ###

import book.Book;
    import book.BookList;
    
    import java.util.Scanner;
    
    public class Add implements Io{
        
        @Override
        public void work(BookList bookList) {
        
            Scanner scanner=new Scanner(System.in);
            System.out.println("请输入新增图书的名字");
            String name=scanner.nextLine();
            System.out.println("请输入新增图书的作者");
            String author=scanner.nextLine();
            System.out.println("请输入新增图书的价格");
            int price=scanner.nextInt();
            System.out.println("请输入新增图书的类型");
            String type=scanner.nextLine();
            Book book=new Book(name,author,price,type);
            int size=bookList.getUsedSize();
            if (size==bookList.getBooks().length){
        
                System.out.println("书架满了");
                return;
            }
            for(int i=0;i<size;i++)
            {
        
                if (bookList.getBook(i).getName().equals(name)){
        
                    System.out.println("已经有这本书了");
                    return;
                }
            }
            bookList.setBooks(size,book);
            bookList.setUsedSize(size+1);
    
        }
    }

### Borrow ###

import book.BookList;
    
    import java.util.Scanner;
    
    public class Borrow implements Io{
        
        @Override
        public void work(BookList bookList) {
        
            System.out.println("请输入您要借的书名");
            Scanner sc=new Scanner(System.in);
            String name=sc.nextLine();
            int size=bookList.getUsedSize();
            for(int i=0;i<size;i++){
        
                if(bookList.getBook(i).getName().equals(name)){
        
                    System.out.println("有您要借的书");
                    System.out.println(bookList.getBook(i));
                }
            }
            System.out.println("您要借的书不存在");
        }
    }

### Exit ###

import book.BookList;
    
    public class Exit implements Io{
        
        @Override
        public void work(BookList bookList) {
        
            System.out.println("退出系统！");
            System.exit(0);
        }
    }

### Find ###

import book.Book;
    import book.BookList;
    
    import java.util.Scanner;
    
    public class Find implements Io{
        
        @Override
        public void work(BookList bookList) {
        
            System.out.println("查找图书！");
    
            Scanner scanner = new Scanner(System.in);
            String name = scanner.nextLine();
            //遍历这个数组
            int currentSize = bookList.getUsedSize();
            for (int i = 0; i < currentSize; i++) {
        
                Book book = bookList.getBook(i);
                if(book.getName().equals(name)) {
        
                    System.out.println("找到了这本书，信息如下：");
                    System.out.println(book);
                    return;
                }
            }
            System.out.println("没有找到这本书！");
        }
    }

### Io ###

import book.BookList;
    
    public interface Io {
        
        void work(BookList bookList);
    }

### Return ###

import book.BookList;
    
    import java.util.Scanner;
    
    public class Return implements Io{
        
        @Override
        public void work(BookList bookList) {
        
            System.out.println("请输入您要归还图书名");
            Scanner sc=new Scanner(System.in);
            String name=sc.nextLine();
            int szie=bookList.getUsedSize();
            for(int i=0;i<szie;i++){
        
                if(bookList.getBook(i).getName().equals(name)){
        
                    bookList.getBook(i).setBorrowed(false);
                    System.out.println("归还成功");
                    return;
                }
            }
            System.out.println("未找到您要归还的图书");
        }
    }

### Show ###

import book.BookList;
    
    public class Show implements Io{
        
        @Override
        public void work(BookList bookList) {
        
            System.out.println("打印图书");
            int size=bookList.getUsedSize();
            for(int i=0;i<size;i++){
        
                System.out.println(bookList.getBook(i));
            }
        }
    }

## user包 ##

### Max ###

import operation.*;
    
    import java.util.Scanner;
    
    public class Max extends Users{
        
        public Max(String name){
        
            //父类先进行构造
            super(name);
            this.io = new Io[]{
        
                    new Exit(),
                    new Find(),
                    new Add(),
                    new Del(),
                    new Show(),
            };
        }
        @Override
        public int menu() {
        
            System.out.println("**********管理员用户*****");
            System.out.println("1. 查找图书");
            System.out.println("2. 新增图书");
            System.out.println("3. 删除图书");
            System.out.println("4. 显示图书");
            System.out.println("0. 退出系统");
            System.out.println("**********************");
    
            Scanner scanner = new Scanner(System.in);
            System.out.println("请输入你的操作：");
            int choice = scanner.nextInt();
    
            return choice;
        }
    }

### Min ###

import operation.*;
    
    import java.util.Scanner;
    
    public class Min extends Users{
        
        public Min(String name){
        
            super(name);
            this.io = new Io[]{
        
                    new Exit(),
                    new Find(),
                    new Borrow(),
                    new Return()
    
            };
        }
        @Override
        public int menu() {
        
            System.out.println("**********普通用户******");
            System.out.println("1. 查找图书");
            System.out.println("2. 借阅图书");
            System.out.println("3. 归还图书");
            System.out.println("0. 退出系统");
            System.out.println("**********************");
    
            Scanner scanner = new Scanner(System.in);
            System.out.println("请输入你的操作：");
            int choice = scanner.nextInt();
    
            return choice;
        }
    }

### Users ###

import book.BookList;
    import operation.Io;
    
    public abstract class Users  {
        
    private String name;
    public Io io[];
    public Users(String name){
        
        this.name=name;
    }
    public abstract int menu();
    public void choice(int choice, BookList bookList){
        
        io[choice].work(bookList);
    }
    
    }

## 主函数 ##

import book.BookList;
    import user.Max;
    import user.Users;
    
    import java.util.Scanner;
    
    public class Main {
        
        public static Users shenfen(){
        
            Scanner sc=new Scanner(System.in);
            System.out.println("请输入您的身份");
            String name= sc.nextLine();
            if(name.equals("Max")){
        
                return new Max(name);
            }
            if(name.equals("Min")) {
        
                return new Max(name);
            }
            return null;
        }
        public static void main(String[] args) {
        
            Users users=shenfen();
            Scanner sc=new Scanner(System.in);
            BookList bookList=new BookList();
            while (true){
        
                int chioce=users.menu();
                users.choice(chioce,bookList);
            }
    
        }
    }

> 今天分享到这里就结束了，希望大家支持一下  
> ![在这里插入图片描述][7a722dc42e104c309446b9e09ea64d36.png_pic_center]

[ffc0e471ff2144e9aea6a3a99ceb6213.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/20/917d135eac8542d59ae12da04cfe9742.png
[zoro-1]: https://blog.csdn.net/ltzoro?spm=1000.2115.3001.5343
[7a722dc42e104c309446b9e09ea64d36.png_pic_center]: https://image.dandelioncloud.cn/pgy_files/images/2024/04/20/11629ee8794c414c879c9f31c1ec9dba.png