DEV Community

Pavithra Saravanan
Pavithra Saravanan

Posted on

1

Java basic program with expansion

Created a class as public class Library
Created a object as Library books = new Library();
Object is memory representation of class.
Most important object name should not be in capital.

How to create an object in Java? {TBD}

Java provides five ways to create an object.

Using new Keyword
Using clone() method
Using newInstance() method of the Class class
Using newInstance() method of the Constructor class
Using Deserialization
Enter fullscreen mode Exit fullscreen mode

Code:

public class Library
{

public static void main(String[] args)
{
Library books = new Library(); //Object Creation
//new allocates memory - Instance - Instantiation
books.fiction(); //Method Calling Statement
Library librarian = new Library();
librarian.lending_books();

}
public void fiction() //Method Signature
{
//Method Definition / Body
System.out.println("Book Name:Fiction books");
}


public void lending_books() //Method Signature
{
//Method Definition / Body
System.out.println("Librarian:Successfully lended the books");
}


}
Enter fullscreen mode Exit fullscreen mode

Output:

Image description

Image of Datadog

How to Diagram Your Cloud Architecture

Cloud architecture diagrams provide critical visibility into the resources in your environment and how they’re connected. In our latest eBook, AWS Solution Architects Jason Mimick and James Wenzel walk through best practices on how to build effective and professional diagrams.

Download the Free eBook

Top comments (0)

Image of Datadog

Create and maintain end-to-end frontend tests

Learn best practices on creating frontend tests, testing on-premise apps, integrating tests into your CI/CD pipeline, and using Datadog’s testing tunnel.

Download The Guide

👋 Kindness is contagious

Engage with a sea of insights in this enlightening article, highly esteemed within the encouraging DEV Community. Programmers of every skill level are invited to participate and enrich our shared knowledge.

A simple "thank you" can uplift someone's spirits. Express your appreciation in the comments section!

On DEV, sharing knowledge smooths our journey and strengthens our community bonds. Found this useful? A brief thank you to the author can mean a lot.

Okay