Why should you use Linux?

Richard Rhein — Tue, 07 Jun 2022 14:35:50 +0000

Hey, how you are all doing? I hope fine and you probably sit in front of your machine while you sip some of your favourite beverage and might read this article and ask yourself "Why the hell should I use Linux?"

Exactly, therefore I am going explain the reasons and benefits of using Linux.

What is Linux?

(You may skip, if you already know what Linux is.)

Linux or GNU/Linux is an open source operating system, where Linus Torvalds wrote the first Kernel in the year 1991 under the GNU General Public License (GPL).
After that it distributed into many "Linuxes" (Linux Distributions) till now.

If you want to know more about the history -> Linux History

It is not that difficult!

There are many rumors that Linux is very difficult and complicated for beginners, but it is partly true. Well, it really depends on the Linux distribution, for instance Gentoo Linux is very complicated and difficult to use and learn even for most experienced users, but distro's like Linux Mint or Ubuntu Linux are very beginner-friendly and the community support is great.

A complete operating system (almost) for free!

Just imagine you don't need to pay for an OS.(I mean you can crack Microsoft Windows, but that's not the case and we are not "criminals") If you want to use Linux, you don't need to pay any money. I mean there are some monetized Linux distro's like RedHat Linux , but the usage is mostly for enterprise companies.

You can choose any distro you want from Distrowatch and believe me there are a wide range of Linux distro's.

Free Alternative Software

Every Linux distro possesses a big variety of free open source software.

This is a software manager with all the free software that are available. This kind of a software manager is pretty common in many Linux distro's. This is an example from Linux Mint 20.3.

For example, if you are in need of an office suite like Office 365 from Microsoft, you can use a free alternative to that. Libre Office is a good alternative, it is free and easy to use.

Which possibilties do you have on Linux?

Well, you can surf, play games, code etc. Apparently it is nothing special compared on Michaelsoft Bimbows or Apple MAC OS X. But why on Linux? It's not because it's cool, well actually it is, but ...

Let me explain, you have an operating system, where you are the admin and only you can do whatever you want on your machine, it is only you and not another company etc.
You can decide, how your Linux looks or operates with you. You can build your own system from scratch like on Linux From Scratch or you can decide how it looks like.

Support for the olds

Linux is also known for supporting old computers, like old Thinkpads etc. and they work fine with Linux on it. You do not have the capacity of resources that you can run every videogame on those old junkers, but they are good to use casual stuff.

There are some personal top 3 recommendations for your old computer:

Puppy Linux
bodhi Linux
SparkyLinux

Where to start?

Firstly, you need to know which Linux distro you want to use or try. There are a plenty of those in the world wide web.

You can visit Distrowatch, get more informed about the variety of all Linux distro's.
Trust me it is worth it.

Secondly, you need to decide if you're going to only test a Linux distro for yourself or using it daily.
If want to test it out, without any risk, you can use a virtual machine like VMWare or VirtualBox. But, if you want go full mode and use Linux as a daily, then I have some personal favorites to share.

Linux Mint
Ubuntu Linux
Manjaro Linux
OpenSuse
Arch Linux (who want to go complety nuts as beginner)

Thanks for reading. If you have some questions about Linux you can ask right here. I wish you a good day and do not forget to follow for more. See ya...

Dependency Injection (DI) - Cleaner Code ?

Richard Rhein — Tue, 25 Jan 2022 00:43:05 +0000

What is DI?

An example...

Types of DI

Constructor Injection
Property Injection
Method Injection

Conclusion

In your life as a Software Developer, no matter if beginner or advanced, you need
to learn new things to grow. This tutorial could even make you a better developer
in terms of writing much cleaner code. Interested ? Okay, so let´s move on!

What is DI ?

What the heck is Dependency Injection ? Do not worry, it´s not that complicated and you can use it in your projects, just right now. Especially in OOP (Object Oriented Programming).

Dependency Injection or DI is a software design pattern, which provides IoC (Inversion of Control) in Objects.

An example ...

Let´s assume, you did not completly understand, what Dependency Injection does, okay?

We assume that the headchef commands another chef for e.g to cook, but this chef can only use a pan to cook something, but you can use other tools in the kitchen to create something tasty.

However if we let the headchef command the chef to cook, but in this case he gives the chef a pan to cook, then it would not be problem, the chef just need the ability to cook with a tool that is predestined to create something eatible and tasty.

This small example should give you an simple insight into dependency injection.

Types of DI

In this part I am going to show some simple code snippets of the types of Dependecy Injection. (Java)

Those snippets are simple examples without any further explanation.

Constructor Injection

interface Tool{
    void cook();
}

public class Pan implements Tool{

    public void cook(){
        System.out.println("Cooking something great");
    }
}

public class Chef {

    private Tool tool;

    public Chef(Tool tool){
        this.tool = tool;
    }

}

public class Headchef {

    private Tool pan = new Pan();
    Chef chef = new Chef(pan);

    chef.cook();
}

Property Injection

interface Tool{
    void cook();
}

public class Pan implements Tool{

    public void cook(){
        System.out.println("Cooking something great");
    }
}

public class Chef {

    private Tool tool;

    public Chef(Tool tool){
        this.tool = tool;
    }


}

public class Headchef {

    private Tool tool;

    public tool setTool(Tool tool){
        tool = tool;
        return tool;
    }

    public getTool(){
        return tool;
    }


    chef.cook();
}

Method Injection

interface Tool{
    void cook();
}

public class Pan implements Tool{

    public void cook(){
        System.out.println("Cooking something great");
    }
}

public class Chef {

    private Tool tool;

    public Chef(Tool tool){
        this.tool = tool;
    }


}

public class Headchef {

    private Tool tool;

    public void giveOrders(Chef chef){
        chef.cook();
    }
}

Conclusion

There are pros and cons in this software design pattern in object oriented programming. Although it is been said, that it could make the code cleaner, but also not. The reason sits mostly in front of the computer, but never the less the complexity and the size of the programm matters too. So it is not a complete solution for cleaner code, although it could be (it depends on the developer). But it is definitely a good pattern to test and update the code with less complexity and problems.

Feel free to ask questions :D

DEV Community: Richard Rhein

Why should you use Linux?

What is Linux?

It is not that difficult!

A complete operating system (almost) for free!

Free Alternative Software

Which possibilties do you have on Linux?

Support for the olds

Where to start?

Dependency Injection (DI) - Cleaner Code ?

What is DI ?

An example ...

Types of DI

Constructor Injection

Property Injection

Method Injection

Conclusion