Quick learning Java "Introduction?" Part 1 Building an environment

This page is written for private education.

Will IT Hijikata forever?

Will you always do the job of putting dandelions on top of sashimi? I came to the IT industry with hope, but what I'm doing is just routine work ... I only have the job of server monitoring and testers.

That's because you don't have the skills. Because there are many replacements for you.

Therefore, we must become human resources that cannot be replaced. The one without the code is not an engineer. Whether it's infrastructure or development, it doesn't change.

I have to hurry to learn Java

I won't explain why it's Java. First, beginners should read this. This is a very useful finding.

https://qiita.com/YudaiTsukamoto/items/42a8df22ca4c6b327dfd

Did you read it?

Build a development environment

First, let's build a development environment. First, insert the JDK.

Download and install Java SE 9 from the following site. Standard is fine. http://www.oracle.com/technetwork/java/javase/downloads/jdk9-downloads-3848520.html

dauso.PNG

Next, prepare an integrated development environment for Eclipse. (Not when doing it with an editor and command line) http://mergedoc.osdn.jp/

Download Eclipse 4.7 Oxygen. Eclipse.PNG

You can download the Java one, and later add as many features as you like with the plugin, It's a waste of time to find out about it.

If you have money, this is also recommended. https://www.jetbrains.com/idea/

Thaw the dropped one with your favorite multi-archiver.

Start and set the development environment

First, let's create an environment where you can write a console program and execute it immediately.

I don't know in which environment to do it, so check it yourself and set it.

I don't know if I want to make a web app or Android. But the fact that you can't do anything without writing code remains the same, First of all, I will go on the console, and if I have a lot of time, I will write down that.

Output characters on the homework console

Allow me to execute the following code

public class Main {
    public static void main(String[] args) {
        System.out.println("Hello World!");
    }
}



Recommended Posts

Quick learning Java "Introduction?" Part 1 Building an environment
Quick learning Java "Introduction?" Part 2 Let's write the process
Quick learning Java "Introduction?" Part 3 Talking away from programming
Road to Java Engineer Part1 Introduction & Environment Construction
Java learning memo (creating an array)
Server processing with Java (Introduction part.1)
Building a Deep Learning environment (Ubuntu 20.04 LTS)
[Docker] Building an environment to use Hugo
Deep Learning Java from scratch Chapter 1 Introduction
Note: next ・ nextLine (paiza learning Java introduction 9: # 06)
Learning for the first time java [Introduction]
[Java] Introduction
Build an E2E test environment with Selenium (Java)
Building OpenPose (Pytorch_Realtime_Multi-Person_Pose_Estimation) environment on Docker: training part
[Rails] Building an environment for developing web applications
Points stuck in building VSCode & Java development environment
An introduction to Groovy for tedious Java engineers
For JAVA learning (2018-03-16-01)
Ruby Learning # 1 Introduction
Java learning day 5
[Java] Environment construction
Java environment construction
java practice part 1
Java development environment
[Java] Introduction to Java
Introduction to java
java learning day 2
java learning day 1
Prepare an environment where Java strictfp really makes sense
[LeJOS] Let's program mindstorm-EV3 in Java [Environment construction part 2]
[Java] Find prime numbers with an Eratosthenes sieve (Part 2)
A quick review of Java learned in class part4
A quick review of Java learned in class part3
A quick review of Java learned in class part2