library.java

import java.util.Scanner;
import java.util.ArrayList;


class library{
    public static void main(String[] args) {
        
    

     Scanner sc = new Scanner(System.in);
        ArrayList<String> books = new ArrayList<>();

        int choice;

        do {
            System.out.println("\n1. Add Book");
            System.out.println("2. View Books");
            System.out.println("3. Remove Book");
            System.out.println("4. Exit");

            System.out.print("Enter Choice: ");
            choice = sc.nextInt();
            sc.nextLine();

            switch (choice) {

                case 1:
                    System.out.print("Enter Book Name: ");
                    String book = sc.nextLine();

                    books.add(book);

                    System.out.println("Book Added");
                    break;

                case 2:
                    System.out.println("Books List:");

                    for (int i = 0; i < books.size(); i++) {
                        System.out.println(books.get(i));
                    }
                    break;

                case 3:
                    System.out.print("Enter Index to Remove: ");
                    int index = sc.nextInt();

                    books.remove(index);

                    System.out.println("Book Removed");
                    break;

                case 4:
                    System.out.println("Thank You");
                    break;

                default:
                    System.out.println("Invalid Choice");
            }

        } while (choice != 4);
    }
}