I will put together a blog to organize what I have learned. I hope it helps others. I would appreciate it if you could point out any mistakes. Also, if you have any advice, I would appreciate it if you could comment.
Overtime was prohibited and I was looking for a side job, but for the following reasons, I would like to make one achievement by personal development and connect it to a side job
--There are no projects with few working days in C, C ++ (currently owned skills) --Many application development projects --I've always been interested in Android application development ――It is a good opportunity to learn a language other than C
Develop your own app and publish it on the Google Play store.
--Being able to carry out RA ~ IT by yourself --Understanding the knowledge of java required for application development
From the following candidates, we decided to use Java in consideration of future versatility. (I was at a loss with Koltin.)
In order to drive myself, I immediately registered with Google Play Developer, which is necessary to release the app. The cost was $ 25 (about 2,700 yen) only once. (As of June 14, 2020) I referred to the following article. [Registration method] ("https://qiita.com/minuro/items/f1eba5b3a14fd3110085")
I bought it about 2 years ago, but I don't think the essentials have changed, so I'll use the following. (When I looked it up, it was up to the 4th edition ...) [First Android Programming Revised Edition]("https://www.amazon.co.jp/%E3%81%AF%E3%81%98%E3%82%81%E3%81%A6%E3%81" % AEAndroid% E3% 83% 97% E3% 83% AD% E3% 82% B0% E3% 83% A9% E3% 83% 9F% E3% 83% B3% E3% 82% B0-% E6% 94% B9% E8% A8% 82% E7% 89% 88-% E9% 87% 91% E7% 94% B0-% E6% B5% A9% E6% 98% 8E / dp / 47793391669 ")
From now on, I would like to summarize the know-how that will be used in application development.