Java Question-02

Sureshkumar kajanthan

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Apr 9, 2023

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import java.time.LocalDate;

abstract class LibraryItem {
    private String title;
    private String author;
    private int year;

    public LibraryItem(String title, String author, int year) {
        this.title = title;
        this.author = author;
        this.year = year;
    }

    public String getTitle() {
        return title;
    }

    public void setTitle(String title) {
        this.title = title;
    }

    public String getAuthor() {
        return author;
    }

    public void setAuthor(String author) {
        this.author = author;
    }

    public int getYear() {
        return year;
    }

    public void setYear(int year) {
        this.year = year;
    }

    public abstract LocalDate checkOut(String borrower);

}

import java.time.LocalDate;

public class Book extends LibraryItem{

    private int numPages;

    public Book(String title, String author, int year,int numPages) {
        super(title,author,year);
        this.numPages=numPages;
    }

    public int getNumPages() {
        return numPages;
    }

    public void setNumPages(int numPages) {
        this.numPages = numPages;
    }

    public LocalDate checkOut(String borrower)
    {
        return LocalDate.now().plusDays(14);
    }
}

import java.time.LocalDate;

public class DVD extends LibraryItem{

    private int runtime;
    public DVD(String title, String author, int year,int runtime) {
        super(title,author,year);
        this.runtime=runtime;
    }

    public int getRuntime() {
        return runtime;
    }

    public void setRuntime(int runtime) {
        this.runtime = runtime;
    }

    public LocalDate checkOut(String borrower)
    {
        return LocalDate.now().plusDays(7);
    }
}

import java.time.LocalDate;

public class Library {

    private LibraryItem[] items;

    public Library(LibraryItem[] items)
    {
        this.items = items;
    }

    public LocalDate checkOutItem(int index,String borrower)
    {
        return items[index].checkOut(borrower); //2023-04-13
    }
}

import java.time.LocalDate;
import java.time.format.DateTimeFormatter;

public class Main {
    public static void main(String[] args)
    {
        LibraryItem[] items={
              new Book("The Great Gatsby","F.Scott",1999,180),
              new DVD("The God Father","Francis",1972,175)
        };

        Library library=new Library(items);

        LocalDate dueDate=library.checkOutItem(0,"John Doe"); //2023-04-13
        System.out.println("Due date for "+items[0].getTitle()+":"+dueDate.format(DateTimeFormatter.ISO_DATE));

        LocalDate dueDate1=library.checkOutItem(1,"Jane Smith");
        System.out.println("Due date for "+items[1].getTitle()+":"+dueDate.format(DateTimeFormatter.ISO_DATE));

    }
}