图书馆系统Java,java图书借阅管理系统
本文实例为大家分享了爪哇实现图书馆借阅系统的具体代码，供大家参考，具体内容如下
Main.java
包com。src 1。图书系统；导入com。src 1。图书系统。书单。书单；导入com。src 1。图书系统。用户。adminuser导入com。src 1。图书系统。用户。普通用户；导入com。src 1。图书系统。用户。用户；导入Java。util。扫描仪；public class Main { public static void Main(String[]args){//1 .准备书籍BookList BookList=new BookList()；//2登录user user=log in()；while(true){ int chio ce=user。menu()；//3.根据选择调用方法user . doo operation(chio ce，书单)；} }公共静态用户log in(){ Scanner Scanner=new Scanner(system。在)；System.out.println(请输入用户名：);字符串名称=扫描仪。next line()；if (admin ).equals(name)){ system。出去。println(请输入管理员密码：);字符串密码=扫描仪。next line()；if (admin ).equals(密码)){ system。出去。println(‘你好！尊敬的管理员!欢迎来到藏经阁);返回新的管理员用户(名称);} else { System.out.println(密码错误，进入用户端!);System.out.println(hello！名称欢迎来到藏经阁);返回新的普通用户(姓名)；} } else { system。出去。println(你好！名称欢迎来到藏经阁);返回新的普通用户(姓名)；} } }package user
AdminUser.java
包com。src 1。图书系统。用户；导入com。src 1。图书系统。操作。*;导入Java。util。扫描仪；公众的类管理员表扩展user { @ Override public int menu(){ Scanner Scanner=new Scanner(system。在)；System.out.println(1 .查找图书);System.out.println(2 .新增书籍);System.out.println(3 .删除书籍);System.out.println(4 .书籍列表);System.out.println(0 .退出系统);int chio ce=扫描仪。nextint()；返回chioce} public AdminUser(字符串名称){ super(名称)；这个。operations=new io operation[]{ new exit operation()、new FindOperation()、new AddOperation()、new DelOperation()、new display operation()}；} }规范
alUser.java
package com.src1.booksystem.users;import com.src1.booksystem.operation.*;import java.util.Scanner;public class NormalUser extends User { @Override public int menu() { Scanner scanner = new Scanner(System.in); System.out.println("1.查找图书"); System.out.println("2.借阅书籍"); System.out.println("3.归还书籍"); System.out.println("4.书籍列表"); System.out.println("0.退出系统"); int chioce = scanner.nextInt(); return chioce; } public NormalUser(String name) { super(name); this.operations = new IOperation[] { new ExitOperation(), new FindOperation(), new BorrowOperation(), new ReturnOperation(), new DisplayOperation() }; }}User.java
package com.src1.booksystem.users;import com.src1.booksystem.booklist.BookList;import com.src1.booksystem.operation.IOperation;abstract public class User { public String name; public IOperation[] operations; /** * 如果没有menu 就不能通过user访问 */ public abstract int menu() ; public void doOperation(int chioce, BookList bookList){ //数组当中元素的对象,通过.调用对应operation方法 operations[chioce].work(bookList); } public User(String name) { this.name = name; }}package book
book.java
package com.src1.booksystem.book;public class Book { private String name; private String author; private int price; private String type; private boolean isBorrowed; public Book(String name, String author, int price) { this.name = name; this.author = author; this.price = price; } 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 boolean isBorrowed() { return isBorrowed; } public void setBorrowed(boolean borrowed) { isBorrowed = borrowed; } @Override public String toString() { return "[" + "书名:" + name + ", 作者:" + author + ", 价格:" + price + ","+ (isBorrowed ? "已借出":"未借出")+"]"; }}package booklist
BookList.java
package com.src1.booksystem.booklist;import com.src1.booksystem.book.Book;public class BookList { private Book[] books; private int usedSize; public BookList() { this.books = new Book[10]; this.books[0] = new Book("西游记","吴承恩",13); this.books[1] = new Book("水浒传","施耐庵",14); this.books[2] = new Book("三国演义","罗贯中",15); 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) { this.books[pos] = book; }}package operation
AddOperation
package com.src1.booksystem.operation;import com.src1.booksystem.book.Book;import com.src1.booksystem.booklist.BookList;import java.util.Scanner;public class AddOperation implements IOperation{ @Override public void work(BookList bookList) { Scanner scanner = new Scanner(System.in); System.out.println("请输入书名"); String name = scanner.nextLine(); System.out.println("请输入作者"); String author = scanner.nextLine(); System.out.println("请输入价格"); int price = scanner.nextInt(); Book book = new Book(name, author, price); int curSize = bookList.getUsedSize(); bookList.setBooks(curSize, book); bookList.setUsedSize(curSize + 1); System.out.println("新增成功"); }}BorrowOperation
package com.src1.booksystem.operation;import com.src1.booksystem.book.Book;import com.src1.booksystem.booklist.BookList;import java.util.Scanner;public class BorrowOperation implements IOperation { @Override public void work(BookList bookList) { System.out.println("借阅书籍"); Scanner scanner = new Scanner(System.in); System.out.println("请输入你要借阅的图书："); String name = scanner.nextLine(); for (int i = 0; i < bookList.getUsedSize(); i++) { Book book = bookList.getBook(i); if(book.getName().equals(name)) { if(book.isBorrowed()) { System.out.println("此书已经借出了！"); return; } book.setBorrowed(true); System.out.println("借阅成功！"); return; } } System.out.println("没系统未收录这本书！"); }}DelOperation
未完善
package com.src1.booksystem.operation;import com.src1.booksystem.booklist.BookList;import java.util.Scanner;import com.src1.booksystem.book.Book;public class DelOperation implements IOperation{ @Override public void work(BookList bookList) { System.out.println("请输入要删除的书名:"); Scanner scanner = new Scanner(System.in); String delbook = scanner.nextLine(); int size = bookList.getUsedSize(); for (int i = 0; i < size; i++) { Book book = bookList.getBook(i); if(book.getName().equals(delbook)) { if(i+1<size) { bookList.setBooks(i, bookList.getBook(i + 1)); } bookList.setUsedSize(size-1); if(i+2 < size) { bookList.setBooks(i+1, bookList.getBook(i + 2)); } } } System.out.println("删除成功!"); }}修改
public class DelOperation implements IOperation{ @Override public void work(BookList bookList) { System.out.println("请输入要删除的书名:"); Scanner scanner = new Scanner(System.in); String delbook = scanner.nextLine(); int size = bookList.getUsedSize(); int pos = 0; int i = 0; for ( i = 0; i < size; i++) { Book book = bookList.getBook(i); if(book.getName().equals(delbook)) { pos = i; break; } } if(i == size){ System.out.println("系统中没有这本书"); return; } for(int j = pos; j < size-1; j++) { bookList.setBooks(j, bookList.getBook(j + 1)); } bookList.setUsedSize(size-1); System.out.println("删除成功!"); }}DisplayOperation
import com.src1.booksystem.booklist.BookList;public class DisplayOperation implements IOperation{ @Override public void work(BookList bookList) { for (int i = 0; i < bookList.getUsedSize(); i++) { System.out.println(bookList.getBook(i)); } }}ExitOperation
package com.src1.booksystem.operation;import com.src1.booksystem.booklist.BookList;public class ExitOperation implements IOperation { @Override public void work(BookList bookList) { System.exit(0); }}FindOperation
package com.src1.booksystem.operation;import com.src1.booksystem.book.Book;import com.src1.booksystem.booklist.BookList;import java.util.Scanner;public class FindOperation implements IOperation{ @Override public void work(BookList bookList) { Scanner scanner = new Scanner(System.in); System.out.println("请输入要查找的书名"); String name = scanner.nextLine(); for( int i = 0; i < bookList.getUsedSize(); i++) { Book book = bookList.getBook(i); if(book.getName().equals(name)) { System.out.println(book); return; } } }}ReturnOperation
package com.src1.booksystem.operation;import com.src1.booksystem.book.Book;import com.src1.booksystem.booklist.BookList;import java.util.Scanner;public class ReturnOperation implements IOperation { @Override public void work(BookList bookList) { Scanner scanner = new Scanner(System.in); System.out.println("请输入你要归还的书名："); String name = scanner.nextLine(); for (int i = 0; i < bookList.getUsedSize(); i++) { Book book = bookList.getBook(i); if(book.getName().equals(name)) { //说明有这本书 book.setBorrowed(false); System.out.println("归还成功！"); return; } } System.out.println("系统未找到本书的相关信息！"); }}接口 IOperation
package com.src1.booksystem.operation;import com.src1.booksystem.booklist.BookList;public interface IOperation { &
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