Exercise 7: Solutions + Shoutouts By CodeWithHarry

Summary by www.lecturesummary.com: Exercise 7: Solutions + Shoutouts By CodeWithHarry

Java Class and Object Basics

This video goes through creating a Java class and handling objects. It creates a very simple library management system by using classes and objects.

Creating a Java Class (00:00:00 - 00:01:40)

Create a new Java class called cwh_exo07.java.

Inside the class, define private fields for:

• name: a String to hold the book's name
• issued_on: a String to hold the date the book was issued
• issued_to: a String to hold the name of the person a book was issued to

Create public methods to:

• Set and get the values of the private fields
• Add a book to the library
• Issue a book from the library
• Return a book to the library

Implementing the Library Management System (00:01:40 - 00:05:45)

Library class to hold and manage the books.

Inside the Library class:

• A private List to hold the books
• Implement methods to:

• Add a book to the library
• Issue a book from the library
• Return a book to the library
• Print all the books in the library

In the main method:

• Create a new Library object
• Create some book objects and add them to the library
• Issue a book from the library
• Return the issued book to the library

Working with Objects (00:05:45 - 00:12:15)

• Create multiple book objects and store them in variables
• Demonstrate how to access and modify the properties of the book objects
• Show how to remove a book from the library
• Provide a summary of the key concepts covered in the video

Acknowledgments

"A big shout out to all the technology family members who have been supporting the channel!"

Concepts Overview

Concept	Description
Java Class	A blueprint for creating objects that encapsulate data and behavior
Object	An instance of a class that can store data and perform actions
Encapsulation	Hiding the inner working details of a class from others and presenting them a public interface to work on them
Access Modifiers	Keywords that are used for accessing control and accessibility of class members
List	A data structure in Java. This can hold a collection of elements.

// Creating a book object and putting it in the library, addBook

book = new Book("Algorithms", "John Doe", "2023-04-15")

library.addBook(book);