C# Tutorial 4 Methods Enum
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- เผยแพร่เมื่อ 20 ก.ย. 2024
- Get the Code Here : goo.gl/Vhk5PD
Best C# Book : amzn.to/2iMArkU
Support me on Patreon : / derekbanas
In this part of my C# tutorial we'll cover methods in detail. We'll cover Pass by Value versus Pass by Reference, Out Parameter, Params, Named Parameters, Method Overloading, Enum and much more.
For best results take notes on the cheat sheet provided above as you watch and leave any questions you have.
Thank you to Patreon supporters like the following for helping me make this video
cottageindustriesbuild/
jaryd remillard : instagram: @distant_admiration
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@kyleaisho
@thetwistedhat
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jaryd remillard : github.com/Yea...
This is exactly the kind of content that I love learning from. Most C# tutorials don't even bother explaining what the "static void" means. I also love how he covers so many topics and really teaches you to become more than just a beginner in the C# language. Very well done. Loving the series so far and will definitely watch it completely.
Thank you for the wonderful compliments :) I’m very happy that you are finding the course useful
Thanks man, I watched the freeCodeCamp lecture but they didn't get to nearly as many topics as you did, and the super long lectures by Indian guys are pretty dense. Your videos are easy to understand but also cover a ton of info.
Thank you for the nice compliment :) It's nice to hear that little old me in my basement can compete against multimillion dollar organizations.
the best c# tutorials. this is my first programming language that i will ever master
Your voice is like Morgan Freeman in programming :D
Thank you for the very nice compliment :)
Thanks for these videos, im starting to learn C# and the series is really a good jumpstart for me. Hoping to land a job as a developer early next year
Thank you kindly for another awesome tutorial.
My new year's resolution was to get into C# and MonoGame and these tutorials are like dream come true!
Thank you very much :) I'll start making games ASAP
It's only January, but I'm nominating you as "Man of the Year!" Derek! Looking forward to the rest of this series!
Thank you very much :) I like your avatar!
Thank you for this great collection of c# videos!
I'm very happy that you like them :)
Enums at 14:19
hi Derek - this is suggestion : perhaps you could publish a calendar of the language you will cover during the year. I know things would be dynamic but just checking ?
I can say this for certain right now. I receive a ton of messages in which people say they don't like when I just focus on one topic, so I invested in way better hardware and software that makes it easier for me to make videos. That means I'll now make 3 videos a week starting next week. Wednesday and Saturday will stay focused on C# and then Xamarin, MonoGame, Unity, Corona and other game related topics. My new Monday video will focus on live streams on random things like games, product reviews, cooking, learn in ones, health and other completely random topics. I hope everyone likes the new direction I'm taking which I hope provides more of the videos everyone wants to see :)
Thats would be wonderful. I completely agree, that would add the spice to otherwise dry programming topics. Please don't forget use webster - If I may nudge the following topics at some time (python programming apps, machine learning - and AI)
Dude you're ton of help! Many thanks for making things so clear and easily followable.
Thank you :) I'm very happy that I could help
wow
another great tutorial on one of the best computer science tutorial channels
Thanks Derek
Thank you for the nice compliment :)
Man... You are the best. When I need some explanation you are the first one that I'm checking.
Can you Please make a Python videos- not basic stuff but explanation with how the stuff is implemented and what is the best ways to use it
Thank you :) I have a huge Python tutorial here th-cam.com/video/nwjAHQERL08/w-d-xo.html
Platinum, thank you for all the hard work that you're putting in to this. Loving the RE7 streams as well :)
Thank you very much :) I'm happy you don't mind if I make multiple types of videos. Most channels don't get to do stuff like this.
Thanks for your tutorials. They help a lot.
I know that the main principle of the GetSomeMore method is passing parameters, so this isn't important, but I found a small bug.
The foreach loop uses an int instead of a double. So sum returns a truncated result. i.e: 1.1 + 2.2 + 3.3 = 6 instead of 6.6
even though i dont know eng but i truly understanding what you did. you are beast... or best whateverelse :D
I thought that the video title means that i can make an enum holding different methods inside of it as members so i said OH LORD I FOUND WHAT I WAS LOOKING FOR! but uhh... thanks for the video !!
Hi! I have a question about type of methods, it means why do you always do a static methods? When we make a static attribute or method then it belongs to the class, not to the object of these class, but for example in this video it makes any difference if we use the "static" or not?
By the way you do a great videos, keep it up!
Thank you :) Yes they are all static because the class is generic. As the tutorial continues I'll make classes that are meant to help define the capabilities of real world objects. Then they won't be static. Utility functions are normally static
Ok, thank you for the response, but why the class is generic? I just started learning a C# and I don't know a lot about generic calsses and methods yet. I know it's something like templates in C++, it means we can create e.g. a generic method and in the moment of use compilator generates a code to handle a specific type of data.
static is used for methods that aren't on an instance. The next video should probably clear this up. Methods and values can be static or instance. It determines what you have access to, how you call them and whether you need to create an instance of the class. You might have a class called Car. A static method might be GetWheels - which would return 4 FOR ALL CARS. A method called GetOwner would return the owner of a particular car. You might use it like this:
Car aCar = new Car();
aCar.SetOwner("John Smith");//set owner on specific car aCar
aCar.GetOwner(); //returns John Smith
Car.GetWheels(); //returns 4 and can be called on the Class.
// Car.GetOwner(); //IMPOSSIBLE as static method is on a class, not any one car.
I think he meant generic in an informal sense. Generics as a programming technique is an advanced technique. The use of the static keyword is a beginner's technique.
Long time expected course
The next part will be up on Saturday :)
"Come and GetSum" *DukeNukem voice*
Derek, these are truly awesome videos. Very high value. I want to know:
re - "Thank you to Patreon supporters" - is that where we can send money to support you, or is it all the same as just doing it through the TH-cam link provided? If not, maybe explain the way it works or provide a link if you will. Thanks and keep up the great output!!
Thank you very much :) Yes if you want to contribute a $1 that is greatly appreciated. Anyone that contributes can post a link in all the video descriptions that follow. I'm constantly spending money to upgrade equipment and to buy books. A little bit helps, but I recently purchased a lot of stuff and I'm pretty set money wise now, so definitely don't feel obligated to donate. I'm just happy that people watch the videos.
you are the father of programming
You're very kind :)
thanks for making these tutorials they are great :)
Thank you very much for watching them :) I'm happy they help
Derek at 1:14 you create a method and you assign a value to your parameters (double x = 1, double y = 1) now if you are assigning a value at that time, which is going to take the precedence the ones passed to it, or the ones in the function? Hopefully I got all the terminology right.
OK found the answer at 12:00 the passed parameters take precedence.
static double GetSum(double x = 1, double y = 1) in your website that code is repetitive and overloading won't work. I will just make both float
.
Quick question, at 11:30
The code "static double GetSum(double x = 1, double y = 1),
what is the reason for setting the value to 1 for x and y.
When I ran the code as "static double GetSum(double x, double y)", I got the same result. Is there a difference?
Thanks a lot
I have many questions and rather than somewhat spam them in your comments what you recommend I do for figuring those out? I know that's a broad question but should I just watch many people describe the same things you describe or should I read it or both? If I had someone to ask I would just for clarification on things that are probably easy to understand they just go over my head. Thanks in advance if you answer my stupid question lol
There is no such thing as a stupid question. Fell free to ask me questions and I'll help. Make sure you create new comments each time because TH-cam only sends me new comments and not comment replies. Yes a great book helps a lot. This is a great book amzn.to/2wy5msi I also have a Learn to Program series. While it is written in Python it would be great practice to solve the puzzles in that series using C#. It starts here th-cam.com/video/nwjAHQERL08/w-d-xo.html
I dont quite understand the difference between passing by ref and by out.
I'd appreciate a more indepth explenation, that'd be awesome! =)
Small nitpick, your mic is slightly off balance. you sound like you are talking to the slight front left instead of the center. I've asked a friend and he agrees. I still might be my issue.I remember watching you before you had 100k subs. Thanks for the amazing videos.
You have amazing ears! Yes that is exactly where my mic is. I'll see if I can correct that
are you going to cover WPF and XAML?
Great tutorials by the way
Thank you :) Yes I will
Hi Derek, what is the difference between Console.WriteLine("SUM SEVERAL = " + sum); and Console.WriteLine("SUM SEVERAL = {0}", sum); ?
Hi, They both do the same thing
Hey Derek!
First and foremost I want to thank you for the incredibly helpful videos. They've genuinely hepled me understand most of my degree content. Second, I wanted to know if you''ll be doing any videos on the Java based Scene2D and libGDX in the future as I'm genuinely interested in learning about how to utilise both of these tools in order to make graphics for the game I'm working on? It's be awesome if you did!
Many thanks again man and I look forward to more of your videos
Thank you for the nice message :) I'll be honest and say it would be very hard for me to change over to Java right now. I decided to cover games specifically using C# since the game frameworks for it are awesome. I'll be covering games in massive detail this year, but I'll be using C# instead of Java. I hope that makes sense.
Thanks for the reply and no problem! I'll try to adopt the C notation to Java logic. Looking forward to the next vid!
Derek I cant rlly understand why "static / public static etc..." can you explain pls..
Can't wait to master C# thanks to you! --also are named parameters even useful? Having trouble finding a scenario where it calls for using them.
I'll do my best to cover everything. Actually named parameters are almost never used, but I'm trying to cover everything
Yeah this is the first time i've seen them but i'll take all the info I can get
Hi Derek, isn't it easier to enlarge the font size of the command window? Then you don't have to zoom in all the time. BTW thanks for answering my question on the missing dll. I beat you to i because you are very busy and your video's thaught me how to find the answer myself. Thanks for that also!
I'm always happy to answer questions if I can. Sorry about the zooming. I only do it if I think people may not be able to see on a phone or something like that.
Derek, What is the difference between
params double[] paramArray;
and
double[] normalArray;
and why params is useful, sorry didn't understand it well.
Derek, any upcoming tutorials on "Garbage collectors"? A subject I find a bit confusing lol!
Yes I will definitely cover garbage collection
it seems that you follow that c# book that you've recommended, which is nice :D it's easier for me to understand things that in the book are not explained that good
I'm using it as a guide and then adding a bunch of things that it doesn't cover. I'm glad that format helps :)
it helps me alot i'm trying to learn c# :D i kinda know some c++ but is way way harder than c# so i will stick to c#, thank you for these wonderful tutorials
Hey Derek, I really look forward to opening Visual Studio and following along with your tuts, I find they keep me sharp, and code something every single day so I don't forget what I've learned previously. Do you use a daily coding ritual as well? ..."Platinum". :)
Thank you for the nice compliment :) I appreciate it! Mainly I keep sharp and up to date because I help local university students with projects. When they decide to go in a odd direction I very rarely say anything, but instead tend to just see how things work out. I have been very surprised by how much I have learned by following rather then trying to lead junior programmers. Nobody ever learned anything by not listening. So my ritual is to constantly ask others for input and their ideas.
Thats maybe the best advice Ive heard, your right you can not learn anything by not listening...which is the main reason for my many numerous questions to you over the last year or so LOL! I am getting pumped for your Xamarin tuts and hopefully Unity afterwards?
Derek, I love these videos and I've really learned a lot, thanks!
I wanted to ask, is it C# standard naming convention to capitalize the names of your methods (upper CamelCase vs. lower camelCase) and to not write enums in all uppercase or is this just your personal preference?
Thank you :) Yes methods are normally expected to be uppercase
Question about the params part in the tutorial: how would the GetSumMore method change if you passed just the array (without the param in front of it) into it?
What is static? Did you explain what is static and its function in the methods or classes? If yes, in which video?
When you mark a variable / field as static that means that it belongs to the class. If the value changes for one object it changes for all. A static method / function can only work with static fields. Think of static functions as utility functions.
Hi Derek! Is there a reason calling the videos "Tutorial n" and so on? Why not call it so one can search for the actual content?
Hi Michael, I wish I could put what was covered in the title, but I normally cover at least 7 or 8 topics in each video. Sorry about that, but I don't know any way around it.
Great fun. Thanks.
Thank you :)
Well done Sir !
Thank you :)
Hi Derek, So if I create a new class to specifically decrypt the id and password used in an ASP.Net web config file, would I need to use Out variables to pass the decrypted values back to the calling class or can I still get that value using the Ref keyword?
Hi derek , can you make a tutorial on ASP.NET
Hi, It is in the works
Thanks for the efforts
ASP.NET Core or older versions?
I have error compile CS0111
Type 'Program' already defines a member called 'GetSum' with the same parameter types ConsoleApp1
That C# book you have in your details is scary. Should I be skipping to Chapter 3, since that is when it starts talking about what you show in your tutorial videos? The .NET stuff is a pain to my brain. I'm talking about the first 3 chapters. I'm a noob to programming. On a side note, I feel like the C# part of the book is great, but I feel it is better for me to watch your tutorial videos first before reading it. Because for example, it mentions enum data types while trying to explain the switch construct, and at the same time it says it will talk about enum data types in a later chapter, heh.
I'm only using at as a guide. When I think it is to complicated, or when it doesn't go into enough detail I include more content. Feel free to skip around.
Hello Derek i just learn c# and i want to create a small project . (example mini mart) can u make a video for me?
How strange that you ever thought he would take this suggestion seriously. You're not even giving him anything apart from a name.
I come from the Java world and I got to enums. Aren't there any equivalent to enum properties methods and constructors like we can have in Java.
It is very handy. I used it to have an enum of strings to provide Selenium to pick a browser for tests.
docs.oracle.com/javase/tutorial/java/javaOO/enum.html
How should I do to do anything equivalent ?
Yes docs.microsoft.com/en-us/dotnet/csharp/language-reference/builtin-types/enum
what about sending out a enum
In a crappy Derek impersonation voice. "This is pretty simple stuff, and that is how you solve unified field theory and go faster then the speed of light ...pretty simple stuff here guys." haha just playing, thanks so much for your videos /wave
That's funny :) It is my pleasure to make them
Platinum
thanks so much your the best :-)
Thank you very much :)
Am I programmer yet?
which language is bet for making video games dude?
C# and Unity is the most used framework for Indie studios
Can you please do an videos update for JavaScript shorter please
My JS tutorials are up to date. I also made ones just in the past few months that cover TypeScript and ECMSScript 6. I hope they help :)
It is gonna be called Get Some... It is gonna be receiving a double, which I'm gonna call Ex.
That's funny :)
Platinum!
Platinum
Thank you for doing that :)
Some pretty easy stuff 😂😅
Methods are functions that belong to a class
You are correct :)
It's something I learned on TH-cam from people like you.
Python - methods and functions
C#/Java - methods
Haskell - functions
Thank you for the videos!
288 likes and 0 dislikes. GG you broke youtube.
That's funny :)
platinum
Thank you :)
Hello God!
Lol ikr this man is the God of Programming.
Thank you for the compliment, but I promise anyone can do what I do
TopRealm "We're not worthy...we're not worthy..."
Ashèr Velázquez because you need english.
Sure, anyone can do what you do, but not in the way you do. Would you please make a tutorial, from A-Z to build a full application. Please!!!!!
GetSome
+ThePengumCrew thank you
Platinum
Platinum
Thank you :)