// ========== File: Book.java ==========
public class Book {
private String title;
private String author;
private int id;
private boolean isAvailable;

public Book(String title, String author, int id, boolean isAvailable) {
this.title = title;
this.author = author;
this.id = id;
this.isAvailable = isAvailable;
}

public String getAuthor() {
return this.author;
}

public String getTitle() {
return this.title;
}

public boolean getAvailability() {
return this.isAvailable;
}

public void borrowBook() {
if (isAvailable) {
isAvailable = false;
System.out.println(title + " has been borrowed.");
} else {
System.out.println(title + " is not available now.");
}
}

public void returnBook() {
isAvailable = true;
System.out.println(title + " has been returned and is now available.");
}
}

// ========== File: LibraryMember.java ==========
public class LibraryMember {
private int borrowedCount = 0;
private final int max = 5;
private String name;

public LibraryMember(String name) {
this.name = name;
}

public String getName() {
return this.name;
}

public int getBorrowedCount() {
return this.borrowedCount;
}

public void borrowBook(Book book) {
if (borrowedCount >= max) {
System.out.println(name + " cannot borrow more than " + max + " books.");
} else if (!book.getAvailability()) {
System.out.println("Sorry, the book \"" + book.getTitle() + "\" is already borrowed.");
} else {
book.borrowBook();
borrowedCount++;
System.out.println(name + " now has " + borrowedCount + " borrowed books.");
}
}

public void returnBook(Book book) {
if (borrowedCount > 0) {
book.returnBook();
borrowedCount--;
} else {
System.out.println(name + " has no borrowed books to return.");
}
}
}

// ========== File: Library.java ==========
import java.util.ArrayList;

public class Library {
private ArrayList<Book> books = new ArrayList<>();
private ArrayList<LibraryMember> members = new ArrayList<>();

public void addBook(Book book) {
books.add(book);
}

public void addMember(LibraryMember member) {
members.add(member);
}

public void showAllBooks() {
System.out.println("\nBooks in Library:");
for (Book book : books) {
System.out.println("- " + book.getTitle() + " by " + book.getAuthor() +
" | Available: " + book.getAvailability());
}
}

public void showAllMembers() {
System.out.println("\nLibrary Members:");
for (LibraryMember m : members) {
System.out.println("- " + m.getName() + " | Borrowed: " + m.getBorrowedCount());
}
}
}

// ========== File: Main.java ==========
public class Main {
public static void main(String[] args) {
Library library = new Library();

// Create books
Book b1 = new Book("Clean Code", "Robert C. Martin", 101, true);
Book b2 = new Book("The Pragmatic Programmer", "Andrew Hunt", 102, true);
Book b3 = new Book("Design Patterns", "Erich Gamma", 103, true);

// Add books to library
library.addBook(b1);
library.addBook(b2);
library.addBook(b3);

// Create members
LibraryMember m1 = new LibraryMember("Ahmed");
LibraryMember m2 = new LibraryMember("Hassan");

// Add members
library.addMember(m1);
library.addMember(m2);

// Borrowing books
m1.borrowBook(b1);
m1.borrowBook(b2);
m1.borrowBook(b3);

// Try borrowing unavailable book
m2.borrowBook(b1);

// Return a book
m1.returnBook(b1);

// Now m2 can borrow it
m2.borrowBook(b1);

// Show final status
library.showAllBooks();
library.showAllMembers();
}
}

المجتمع الأكبر للعرب في مجال التك

(ahmed237136)

السوشيال ميديا

الدورات التدريبية (طالب)

سمارت كود | Smart Code | تعلم البرمجة بالذكاء الاصطناعي بثلاث لغات برمجية

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