java - ArrayList

import java.util.*;

public class ArrayListDemo {

    public static void main(String[] args){

        ArrayList<String> a = new ArrayList<>();

        Scanner sc = new Scanner(System.in);

        System.out.println("Enter Book ID");

        String bid = sc.next();

        a.add(bid);

        System.out.println("Enter Book Name");

        String book_name = System.console().readLine();

        a.add(book_name);

        System.out.println("Enter Book Author");

        String author = System.console().readLine();

        a.add(author);

        System.out.println("Enter Book Publisher");

        String publisher = System.console().readLine();

        a.add(publisher);

        System.out.println("Enter Book Quantity");

        String quantity = sc.next();

        a.add(quantity);

        System.out.println("\nSize of List is: \n"+a.size());

        System.out.println("List Contains:\n"+a);

        a.remove(3);

        System.out.println("After Removing Publisher :\n"+a+"\n");

    }

}