[JAVA] I tried to summarize the general flow up to service creation by self-education.

Perhaps most of the readers of this article are about to start programming, or have completed their programming studies and are thinking about creating a service. This article is for such a person, and describes the flow of service creation in as much detail as possible.   By the way, as an advertisement, the service I created is a service called Yapy (laughs).

1. How to study programming

First, I will introduce how to study programming.   The first site I used to study programming was progate. This service allows you to actually write and study programming. In addition, the written code is natural, but it works as it is, so you can write it while applying it yourself. In addition, even if you make a mistake in one character unique to programming, the behavior may be completely different or an error may occur (laugh) I think progate was free halfway through html, css, javascript. After that, there is a charge, so if you are serious about doing it, you can register as a paid member from the beginning.   Some people want to study programming but have nothing to do, or can't imagine what they can do with programming. I was the same. However, if you don't know what programming is and you're stuck, I think it's a good idea to study for the time being. At first, I thought that programming was a discipline that geniuses could learn, but when I actually tried it, it wasn't easy, but the hurdles were lower than I expected, and I was able to learn smoothly. I did. So, I think it's best to try it without thinking about it.

After learning all about progate, it's a good idea to start creating apps for the time being. In my case, I first studied html, css, javascript, and I was wondering "what kind of apps can be made in these languages, how much power I have", so Monaca I started to create an application using a service called: //ja.monaca.io/).   It's been about a month so far.

As I said earlier, I used a service called Monaca to create the app, but this service makes it easy to develop apps using html, css, javascript. It is a service that can be used, and although there are restrictions, it can be used free of charge. In this application development, you can check the knowledge of javascript application and the general flow of development, so please try it. It also leads to motivation.   It took about 2 weeks to develop this app.

After that, I became interested in Ruby, used progate, and after about 5 laps of the Ruby course and the Ruby on Rails course, I started developing the service. Learning Ruby and Ruby on Rails with progate has taken a lot of time. It took about 3 hours a day and about a month to make 5 laps.   In my case, I studied Ruby first, but I think it's easier to continue because each person has motivation to study what language first according to their goals. Depending on the language, habits, things you can do, and things you can make are different, so please carefully examine the characteristics of each language and decide on a language.

2. Environmental development

Next, I will introduce the development environment. If you are researching programming, you will often see articles that say that building an environment or building a development environment is troublesome. Actually, I had a lot of trouble building the environment. I won't go into too much detail about building an environment here. However, I would like to introduce only the points to note when building an environment.

It is important to note when building an environment, but if you do not do it after thoroughly checking the type of your OS, what specifications you have, and what type of file you download, it will be messy later I will. After that, when I'm investigating how to build an environment, I see a screen with a lot of English on a black screen that I don't understand. If you do not do it after checking which command is giving what kind of command, you may end up typing an unnecessary command and start over. When building an environment, I think it is safer to learn commands lightly. Finally, do not forget to back up when building the environment. It's too late since it's annoying (laughs)

If you haven't decided what you want to do, but want to get in touch with programming in earnest, there is a development environment that you can use online, so you can search for it according to your language! I haven't used it before, so I can't explain it in detail, but it's an integrated development environment, and the environment is built from the beginning, and it's a service that allows you to use the language as soon as you register. If you are interested, you can use it because you can find out how to use it by searching.

3. About service development

Once you have built the environment and are ready, you will want to develop a service.

There are many things that you do not understand in service development, so in addition to programming learning services such as dot install and Schoo, books are available. I bought it and proceeded with the development while studying.

Dot Install is a service that allows you to learn programming with a video of about 3 minutes each, and most of it can be used for free. I'm not used to it at first because of the quick explanation, but once I get used to it, the videos of other learning services become slow and annoying (laughs).

Schoo is also a service where you can learn programming with videos, but you can ask questions to the instructor by watching it in real time, and the explanation is relatively polite, so For those who are quick and difficult to understand dot installation, there is a charge for some, but I think you should use this.

Regarding books, if you want to study a language that you are very interested in, you should buy books at a relatively early stage. By purchasing a book and reading through it, you will find many notations and methods that you did not know before. By reading the book lightly once, it will be absolutely useful when developing services.   As I said at the beginning, service creation faces many errors and unknown problems. In such a case, let's actively research and learn notations and methods. The important thing then is to write the code without understanding the meaning of the program. This can lead to unexpected errors, so try to read the meaning and enter the code as much as possible.

It took about two months from service creation to completion.

I think it took about half a year from the start of learning to the completion of the service.

4. Summary

This is the series of steps up to service creation. I think that the procedure differs depending on the person, but I think that there is no choice but to gradually improve the skills in this way.   Programming can be difficult, but it's a way to put your thoughts into shape. If you do not aim to study programming, but think about what you need to do to create something new, you will be able to learn while maintaining motivation. I myself still need to study because the code is getting longer at the beginner level and complicated code does not work well. Let's do our best each other!

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