#Java abstraction

[xploreitcorp5]

What Is Object-Oriented Programming in Java and Why Does It Matter?

Java is super popular in the programming world, and one of the main reasons for that is its use of object-oriented programming (OOP). So, what exactly is OOP in Java, and why should you care? OOP is a way to organize your code by grouping related data and functions into objects. This makes Java easier to work with, more organized, and simpler to update.

Key Ideas Behind Object-Oriented Programming

To get a grip on OOP in Java, you need to know four main ideas: Encapsulation, Inheritance, Polymorphism, and Abstraction. These concepts help you write clean and reusable code, which is pretty important in software development today.

Encapsulation: Keeping Data Safe

Encapsulation means protecting the internal data of an object from being accessed directly. You do this using private variables and public methods. When you take a Java course in Coimbatore, you’ll learn how this helps keep your code secure and safeguards data from accidental changes.

Inheritance: Building on Existing Code

Inheritance lets a new class take on the properties of an existing class, which cuts down on code repetition and encourages reuse. Grasping this idea is key if you want to dive deeper into Java development, especially in a Java Full Stack Developer course in Coimbatore.

Polymorphism: Flexibility in Code

Polymorphism allows you to treat objects as if they are from their parent class rather than their specific class. This means you can write more flexible code that works across different cases. You’ll definitely encounter this in Java training in Coimbatore, and it’s essential for creating scalable applications.

Abstraction: Simplifying Complexity

Abstraction is all about hiding the messy details and only showing what’s necessary. For example, when you use your smartphone, you don’t need to understand how everything works inside it. Java uses abstract classes and interfaces to make things simpler, which you’ll notice in any solid Java course in Coimbatore.

Why It Matters in Real Life

So, circling back: What is OOP in Java and why is it important? Its real strength comes from making big software projects easier to manage. OOP allows multiple developers to work on their parts without stepping on each other’s toes.

OOP and Full Stack Development

Full stack developers cover both the frontend and backend. Understanding OOP in Java can make your backend logic much better. That’s why a Java Full Stack Developer Course in Coimbatore focuses on OOP right from the start.

Java and Your Career Path

If you're looking to become a software developer, getting a good handle on OOP is a must. Companies love using Java for building big applications because of its OOP focus. Joining a Java training program in Coimbatore can help you get the practical experience you need to be job-ready.

Wrapping Up: Start Your Java Journey with Xplore IT Corp

So, what is object-oriented programming in Java and why is it important? It’s a great way to create secure and reusable applications. Whether you’re interested in a Java Course in Coimbatore, a Full Stack Developer course, or overall Java training, Xplore IT Corp has programs to help you kick off your career.

FAQs

1. What are the main ideas of OOP in Java?

The key ideas are Encapsulation, Inheritance, Polymorphism, and Abstraction.

2. Why should I learn OOP in Java?

Because it’s the foundation of Java and helps you create modular and efficient code.

3. Is it tough to learn OOP for beginners?

Not really! With good guidance from a quality Java training program in Coimbatore, it becomes easy and fun.

4. Do I need to know OOP for full stack development?

Definitely! Most backend work in full stack development is based on OOP, which is covered in a Java Full Stack Developer Course in Coimbatore.

5. Where can I find good Java courses in Coimbatore?

You should check out Xplore IT Corp; they’re known for offering the best Java courses around.

[loworbittourist]

Mount Sumbing volcano - Java - Indonesia 🌏 4K link

[forever-stuck-on-java-8]

Type erasure can really be a bitch sometimes

Scratch that, its a bitch most of the time

Like I get why its a thing and how we got here but dammit why is serialization/deserialization so hard sometimes

[ephemeraldebris]

And this is a screenshot for a video backdrop that I'm putting together for a show on Friday. The original sequence here was an animation written in Java using some stuff I'd built in Blender, then put thru some glitchware.

[uceotopia]

My starter house :) to celebrate hitting 100 days!!! #minecraft #minecrafthouse

[arshikasingh]

Why Use Java Interface?

An interface in Java is a blueprint of a class. It has static constants and abstract methods. There are three reasons due to which interface is used.

[great-photography-attributed]

Kuala Lumpur Airport By Neokentin https://flic.kr/p/2qobHe1

[dosomedev]

Hey people! As announced in my last post, my new post about the Abstract Factory Pattern is now happily available on my channel!😀

#java #javaprogramming #javatutorial #javaforbeginners #javaprojects #python #python3 #pythonprogramming #pythontutorial #pythonforbeginners #pythonprojects #programming #factory #abstractfactory #abstractfactorypattern #method #pattern #designpatterns #oop #objectorientedprogramming

[sonaliblogs37]

Understanding Abstract Methods in Java: A Blueprint for Polymorphism

Java, being an object-oriented programming language, provides powerful features to support abstraction, encapsulation, inheritance, and polymorphism. One key feature that contributes to achieving these principles is the concept of abstract methods. In this blog post, we'll delve into what abstract methods in Java are and how they play a crucial role in designing flexible and extensible code.

What is an Abstract Method?

In Java, an abstract method is a method declared in an abstract class but lacks a concrete implementation in that class. The abstract keyword is used to define such methods, and they are intended to be implemented by non-abstract (concrete) subclasses. Essentially, abstract methods serve as placeholders or blueprints for functionality that must be defined in subclasses.

Abstract Classes and Their Purpose

To comprehend abstract methods fully, we need to understand abstract classes. An abstract class in Java is a class that cannot be instantiated on its own but serves as a base for other classes. It may contain both abstract and non-abstract (concrete) methods. Abstract methods declared in an abstract class act as a contract, mandating that any concrete subclass must provide an implementation for those methods.

Let's illustrate this with an example:

In this example, Shape is an abstract class with an abstract method draw() and a non-abstract method display(). The draw() method serves as a blueprint for drawing a shape, leaving the specific implementation to its subclasses.

Subclassing and Implementation

Concrete subclasses extending an abstract class must provide implementations for all the abstract methods declared in the superclass. Failure to do so will result in a compilation error. This ensures that all subclasses adhere to the contract specified by the abstract class.

In this example, the Circle class extends the Shape abstract class and provides an implementation for the abstract draw() method. This allows us to create specific shapes with their unique drawing logic while benefiting from the shared functionalities defined in the abstract class.

Advantages of Abstract Methods

Code Reusability: Abstract methods promote code reusability by defining a common interface in the abstract class, allowing multiple subclasses to provide their implementations.

Polymorphism: Abstract methods contribute to achieving polymorphism, allowing objects of different classes to be treated interchangeably based on their common abstract type.

Abstraction: They enable a higher level of abstraction by defining a general structure in the abstract class and leaving specific details to be implemented in subclasses.

Conclusion

In conclusion, abstract methods in Java serve as a powerful mechanism for designing extensible and maintainable code. They provide a blueprint for functionality in abstract classes, ensuring that concrete subclasses adhere to a specified contract. By embracing abstract methods, Java developers can create hierarchies of classes that promote code reusability, polymorphism, and a clearer separation of concerns in their applications.

If you want to know more, click here : https://analyticsjobs.in/question/what-is-abstract-method-in-java/

[javatarainingtipsandtrick]

When to use an abstract class

Abstract classes in Java are used in scenarios where you want to provide a common base class with some default behavior and characteristics that are shared among multiple subclasses. You should consider using an abstract class in Java when:

You Want to Define a Common Base

When you have a group of related classes that share common attributes and behaviors, you can create an abstract class to serve as the common base. This abstract class can contain fields and methods that are common to all subclasses.

You Want to Provide Default Implementations

Abstract classes can contain both abstract (unimplemented) methods and concrete (implemented) methods. Concrete methods in an abstract class provide default behavior that can be inherited by subclasses. Subclasses can choose to override these methods if needed but are not required to do so.

You Want to Enforce a Structure

Abstract classes can declare abstract methods that subclasses must implement. This enforces a specific structure or contract that subclasses must adhere to, ensuring that certain methods are available for use.

You Want to Share Code and Prevent Code Duplication

Abstract classes promote code reuse by allowing multiple subclasses to inherit common code from the abstract class. This can help reduce code duplication and make your codebase more maintainable.

You Want to Restrict Instantiation

Abstract classes cannot be instantiated directly with the new keyword. They can only be used as a base for other classes. If you want to prevent the creation of instances of a particular class and enforce that it should only be used as a base class, you can make that class abstract.

You Want to Provide a Template Method

Abstract classes are often used to implement the template method pattern. In this pattern, an abstract class defines a template for an algorithm with certain steps that are common across subclasses. Subclasses then provide specific implementations for some of these steps while inheriting the structure of the algorithm.

[ayman7755a]

Is Java harder or easier than other programming languages?

[l-1-z-a]

🧠💾🛠️ I've always had a fascination with The Sims franchise and I am currently looking to get into programming. How was The Sims created? What programs were used (Python, Java, etc.)? What programs and computer languages would I need to learn to emulate this sort of game? - Quora

Answer by Eric Bowman:

I was part of the core Sims team. The first Sims code was written by Jamie Doornbos, later I joined him along with Don Hopkins; the three of us wrote pretty much all of the core code using Visual C++ and used a lot of STL. We also adapted an internal Maxis framework called Gonzo, written by a few people including Paul Pedriana (Paul later drove EASTL). I ended up rewriting a lot of Gonzo specifically for The Sims, but it was a nice windowing abstraction to get started with. I'm still quite proud of my text edit widget, which had all kinds of features totally unnecessary for a computer game, but I had a little time to kill while the game play was coming together.

I think the precursor to the original character animation code was written by Jacques Servin, who was responsible for the famous SimCopter easter egg (SimCopter) and is now one of the Yes Men (in an odd twist of fate, along with a college acquaintance of mine, Igor Vamos). Or maybe Jamie helped him with that, I honestly can't remember.

We wrote a ton of code as a small team, and it was 100% C++ -- there wasn't a single line of assembly code in The Sims, at least not in the core code. By the time it shipped we were using a few internal EA libraries as well, in particular for font rendering. We also didn't use 3d acceleration at all, which turned out to be a good call for massive market penetration. We hit a sweet spot in terms of CPU requirements for smooth gameplay and Moore's Law. We also had basically no unit tests; back then Real Programmers didn't test their own code, which led to an army of testers (who were amazing) and basically a lot more pain that necessary. I'm really happy the world moved toward automated unit testing since then.

Jamie created the "tree language" which gave the characters behavior, which they received from the objects they interacted with. Patrick Barrett was the first and probably greatest tree programmer of them all, and added a huge amount to the game.

One thing that I recall is that the original prototype for The Sims, written by Jamie (in C++) was written for the Mac. When he ported it to Windows, he introduced some Mac-like data abstraction layer to make the Mac code work on Windows, and some of that survived in the shipped game. That must have made porting it back to the Mac particularly interesting (as did my somewhat flagrant use of the DirectX APIs in a way that I'm still embarrassed by).

One thing we considered doing was using Swatch Internet Time which looked like it might take off there for a minute or two, and that would have been an interesting twist how time worked in the game.

There is an ok history of The Sims at the Will-Wright Fansite ::.

Source:

[saturnine-saturneight]

Holoatypical: Dev Log 1

Number one in what's hopefully going to be a pretty long series of updates!

So, first things first: Godot rocks. I've been using it for two weeks now, having switched from GameMaker (and before that, Twine, and before that, Java and JavaScript), and Godot does so much of the heavy lifting for you. It genuinely feels like an engine that's designed for making games. Unlike GameMaker, which was like wading through molasses every step of the way, while some sort of molasses shark is biting at your ankles. And I've coded in JavaScript.

Second, let me show you what I've been up to!

As you can see, I'm working on a prototype to try out the merging mechanic. It's got some (ha) bugs, and dragging things could be smoother, but the critters do actually snap into the grid and merge now, and I'm very pleased with that.

This chamber you see here is going to be the lab. As it's planned right now, the player will have infinite initial building blocks (eggs, spores, seeds...), which merge into different critters depending on environmental variables (artificially set in the lab) and on which other specimens are currently in the chamber. The challenge is to figure out the right parameters. I have no idea how big the chamber needs to be for that, but that's not really an issue, because...

This isn't so much a prototype as I'm just straight up building the foundations for a game, which is why it's taking me so long. The grid you see here is controlled with a few variables, and everything is flexible enough that I can simply change the grid size during playtesting and it still works.

The tile grid is an array of arrays, filled with slot nodes that I instantiate at runtime. Is this the best way to learn a new program and language? Haha. Who knows.

Specimens have a sprite sheet with all their stages on it, and when a critter levels up, the part that's visible to the player just needs to be shifted 64 pixels to the right.

That's x starting point, which is the specimen stage/level times 64, then y starting point, width, and height. Fun! So easy!!

As to the sprite sheet, I'm going against common advice and making these big. The 1bit style is super fast to do, and in my opinion, a certain level of detail is important to make the sprites look like anything. I'm moreso playing with the look than really wanting to make a retro game.

This sheet only took me an evening! I'm enjoying it because it really forces you to abstract the shape and focus on what's most important about the critter. (This is a style test - I haven't decided yet how weird I want to go with these vs making them look more natural.)

Next up will be ironing out the kinks, making an egg dispenser and a specimen incinerator so the field can be filled up and emptied, coming up with a few more specimen, and then going into play testing.

But in the next dev log, you're probably going to hear way more about the story and the characters. I am eyeing a visual novel extension for Godot (dialogic), which, if it does what I think it does, is going to take a lot of work off my hands and only leaves me with writing the actual dialogue, which I've already started on.

@tragedycoded @badscientist @curiouscalembour @writingrosesonneptune @gioiaalbanoart @monstrify @cowboybrunch @tsunamiscale @marlowethelibrarian

Was this format interesting? Less code? More code? Anything you specifically want me to talk about in this process? Let me know!

[once-was-poison-ivy]

After a while of contemplation, I've decided to archive my old account @where-is-my-sonic-screwdriver and this henceforth will be my official tumblr.

Hi! I'm Ajay! Pleasure meeting you!

If we're mutuals or you used to follow me on my old blog, please do not hesitate to follow/text me here!

Here's some stuff about me:

– my hobbies are watching shows/anime, reading books and sleeping

– I'm a mythology nerd, mostly Hindu mythology but yeah I know a little about most mythologies.

– I love music and I love poetry

Artists I listen to: Taylor Swift, Our last night, Eminem, Linkin' Park, Metallica, Imagine Dragons

– My favorite shows are gravity falls, Brooklyn 99, stranger things, doctor who (was my first too!), Moon Knight and a lot

– My favorite anime are Demon Slayer and Attack on Titan

– I'm in a lot of fandoms, too many to list

– I play Genshin Impact (Got an account both Asia and NA), Pokémon Ruby/Sapphire, Pokémon FireRed/LeafGreen and Minecraft (Both Java and Bedrock)

– if u got any show/book/music recs, please please dm me I absolutely do not mind. If you're not comfortable with DMs, you can send it to me in an ask as well!

– I'm diagnosed with ADHD, Peer reviewed to be Autistic, Obsessive Compulsive and slight chances of BPD (Am I collecting them like Pokémon?) (Either way I'm neurodivergent)

– I also love Rickrolling people sometimes

– If you wanna be mutuals sure! do let me know tho I might not sometimes check activity notifs. (the more the merrier - Fatui Cicin Mage, Genshin Impact)

– DNIs: TERFs, Racists, Homophobes, Pseudo-Feminists, Trump Supporters, LGBTQ+ haters, people who discriminate on any grounds, etc etc (this will be updated as required) 

– I also have a near perfect memory, no idea why. If you ever tell me something and I remember it like 4 years later, just remember that you have been warned beforehand

– Is there anything I didn't put on here? lots and lots

– Random thoughts of mine would be tagged #ajay's abstractions

Join this Discord server for Desi Queer people (other queers welcome too, so are supporters. Just don't join for trolling purposes. God works fast, but the mods work faster)

People, Problems and Pride (With the desi kids)

Join my server for mythology nerds! all mythos welcome!

Legendary Mythics

(this server is a little inactive now but yea you can get your friends in too!) My DMs are open for everyone except the DNIs! feel free!

[mitigatedchaos]

Okay, I'm not generally one for dogwhistle-based thinking, but why is your favorite rap song by "a Dutch drum and bass group" called "Black Sun Empire"? On further Googling the official explanation is that it is a Star Wars reference, but this seems dubious to me at best

Dawn of a Dark Day feat. UK hip hop group Foreign Beggars is an excellent example of something that's quite rare: cyberpunk rap that's actually good.

descend to synapse chill factor sixty microverse entered so black, it's slipstream dip both the headlights melt into background

I've never found another track like it.

I'm going to assume that you're not a long-term reader, or it would be obvious why someone who posted fake discourse about parents cryogenically freezing their children would like this song.

Probably the best cyberpunk/post-cyberpunk anime is 2002's Ghost in the Shell: Standalone Complex. Some songs from that series have rap segments, but they don't really add to the music, such as with Origa feat. Heartsdales - Player.

Origa sounds amazing, but everyone who has ever heard one of the tracks featuring her already knows that.

The problem for Heartsdales is that it's usually much easier for a man to pose as tough and intimidating than it is for a woman, and even then, proper intimidation is subtle and depends on a connection to a background of power, or the ability to convincingly fake that connection.

What makes Dawn of a Dark Day so unique is that it's clearly from the perspective of a team of cyborg combat operatives, or following them very closely. It's also abstract enough that it doesn't fall into Ren Faire/Steampunk dorkiness. That's a fine line to tread, and it takes actual talent.

In real life, we don't sing songs about computer hacking, even though computer hacking is one of the most sci-fi elements of the current era.

Imagine a song about a combat cyborg team in the style of a whaling song, talking about cleaning ports and hacking mainframes. This would be much more understandable to contemporary outsider audiences than a line like, "cyberbrain circus - brace for the kickback."

In the cyberpunk world, the cyborg combat team would talk using the actual professional jargon from their field, which would be more specific to their time and place. For example, contemporary computer programmers would complain about Java, a specific programming language, about which they would have specific complaints (such as preferring dynamic typing, or Java being too verbose).

Thus, a whaling-style song, "dust the ports and hack the servers," which doesn't require knowing the specifics, would be something either written from an outsider's perspective, probably as a joke, or written from an insider's perspective, also probably as a joke.

To hit the right band, then, requires writing something from the perspective of an insider (even though insiders would not tend to write songs), that's intelligible to people from our world with some background knowledge of genre, that hits on the sci-fi elements related to the genre (rather than just being a generic love song), without making them overpowering, by baking them into the assumptions of the text.

To use a non-musical example, the original special collector's edition Mass Effect hoodie (left) is subtle and was popular for a while, while some subsequent designs by third parties (right) were much louder.

The design on the left is appropriate for a wide variety of social environments, while the design on the right would require a higher degree of social aptitude to get away with wearing wear in many social environments, and would be more suitable for a video game club or anime convention.

This is part of the general thing where being "cool" is about making things look effortless, and not looking like a tryhard.

Particularly, for the hoodie on the right, there's a mismatch between style and substance, in which it is trying to "borrow" power from a fictional suit of armor from a video game. (This mismatch is the general reason that trying to lean too hard on fiction is cringe; there's not enough substance relative to what someone is trying to do with it.)

Some of you may remember an Indiegogo campaign for a samurai armor hoodie. I'm not saying that everything should be understated. Sometimes, artistically, you're better off committing to the bit.

Now, back to music.

The band Gunship are not a rap outfit, but seem to have been quite successful with a lot of their sci-fi-themed content, such as this video with 3.9 million views:

They do a good job at finding the balance.

Another musical act, Perturbator, got 5.4 million views with a music video about rogue sentient androids (Perturbator - Sentient, which contains nudity).

The successor series for Standalone Complex, SAC_2045, has the song Millennium Parade - Fly With Me, which is better as rap music than the rap segment of Origa - Player, but isn't cyberpunk-themed directly.

Cyberpunk 2077 has, for example, Konrad OldMoney feat. Taelor Yung - Day of Dead, which is great for an action scene, but also isn't directly cyberpunk:

No Save Point, also from 2077, has a great line, "When a fortune cookie tells me I'm fucked, I just shrug," and ain't that Night City for you? They put some work in on this one, but I don't vibe with it as much musically.

Anyhow, that's why Dawn of a Dark Day is my favorite.

If you'd like, I can explain some of the recent politics of dog-whistles tomorrow or the day after.

[nielsblog]

Approaching Composition #10

Niels NTG Poldervaart, 2018

A procedurally generated tribute to the 1915 painting Compositie 10 in zwart wit (Composition 10 in black and white) by Dutch modern abstract artist Piet Mondriaan, one of the leading figures in De Stijl artistic movement.

Made in Java Processing. More info at: nielspoldervaart.nl/composition10