Java TPC Practical Project (Using Java API)

Hello. Following the last JavaTPC lecture, I completed the JavaTPCProject practical lecture. In JavaTPC, I learned about the basics of Java (classes, object-oriented programming, polymorphism, interfaces, etc.), while in JavaTPCProject, I learned 6 examples based on those basics. I was very confused from the beginning because of the difficult and complicated terms like InputStream and OutputStream. However, I pulled myself together and gradually listened to the lecture, and I learned 'this is what it is used for', and I looked up the parts I didn't know by Googling them. It was really a difficult process to complete the lecture. However, since JSON and Excel are used a lot in practice, I think I completed this lecture to learn those parts properly. In particular, I was very impressed by the project using Naver API. In the past, I used the word API vaguely and didn't know much about it, but I learned a little bit about how to use it by actually using it. And in the future, when I use SPRING for web development, I thought that I could show more diverse information to users by using the API provided by the portal site. I will try to implement this part once next year (2021). Those who have taken the JavaTPC lecture, if you only listen to the first part of the JavaTPCProject lecture, you will think, 'I don't understand', 'Why is this suddenly popping up?' However, in actual projects, there are many cases where data is exchanged using files. So even if you don't understand the first part of the lecture, I hope you will refer to it and finish the lecture. If you are too busy and don't have time to listen to the lecture, I strongly recommend that you listen to the JSON and Excel parts. As I mentioned earlier, they are used quite a lot in projects. (JSON is used a lot when exchanging data between the front and back, and Excel is often executed when the retrieved data is downloaded to Excel.) I wrote the text without any order, so the beginning and the end of the sentences do not match. This part, I would like to ask for your understanding from those who read my course review. I have now completed the second online course, and next year, I will complete three or four more courses beyond two to grow into a developer who can help in projects. Thank you!

It was fun to try out JSON API step by step and connect it to Naver MAP API. It was a bit difficult to sign up for Naver Cloud Platform, but it worked well after following it.^^ I will continue to follow it well.

Many practice examples were good.

I'm listening to it from time to time. I think it's more detailed than I thought, so it's really helpful. (I think it's because the basics are pretty solid.)

I learned a lot and had fun. Thank you for making such an informative lecture.

Thanks to this, I was able to get a lot of ideas to include in my toy project and portfolio. I highly recommend this lecture not only to those who are learning Java for the first time, but also to job seekers.

After listening to the Java TPC lecture, it was so fun that I even got to see API utilization that I hadn't even thought about. Unlike the previous memory drawing, it was a little boring at first because it explained API utilization methods, implemented code, ran it, and moved on.. But I thought implementing something was more important, and I watched it until the end. The more I watched, the better the organization was. What was good was that it was just different from what I expected, but I still felt that the code implementation after the explanation was good. At first, I thought, let's see how to use 6 APIs, but as I kept following along, eventually, I thought, "Oh, I'm receiving it as a string, parsing it, or receiving it as a byte, loading it into memory in the desired format, and using it." So, my thoughts gradually became abstract?? If you actually implement it, it will be difficult, but no matter what, First, after receiving a text or stream, I thought I could manipulate it as I wanted with Java code, So I thought I wouldn't be scared of any API, not just 6 APIs. As I kept following along, I didn't have any concept of IO, but I think I got a feel for it a little bit this time, And when implementing chat, it was good to write about threads properly for the first time. I've never thought about IOT.. I also wanted to make something that lights up the text as I type for Christmas.. (I want to do it with Java, but I wish someone would give me a custom device ㅠ) And what I felt after watching only 2 lectures is that you teach really well. Just because you're good at it, doesn't mean you're good at preparing materials and explaining them in an easy-to-see way, but I was impressed by both. I'm grateful that you were able to solidify the basics in a short period of time. I'll take another class if there's a DB or Java-related class~

I keep listening. It's my first time, so I don't understand, but I'm going to listen to it over and over again.