HOW TO ADD JAVA IN SYSTEM VARIABLES

Some PCs might have Java already installed.

To check if you have Java installed on a Windows PC, search in the start bar for Java or type the following in Command Prompt (cmd.exe):

C:\Users\Your Name>java -version

If Java is installed, you will see something like this (depending on version):

java version "11.0.1" 2018-10-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode)

If you do not have Java installed on your computer, you can download it for free from oracle.com.

Note: In this tutorial, we will write Java code in a text editor. However, it is possible to write Java in an Integrated Development Environment, such as IntelliJ IDEA, Netbeans or Eclipse, which are particularly useful when managing larger collections of Java files.

Setup for Windows

To install Java on Windows:

  1. Go to "System Properties" (Can be found on Control Panel > System and Security > System > Advanced System Settings)
  2. Click on the "Environment variables" button under the "Advanced" tab
  3. Then, select the "Path" variable in System variables and click on the "Edit" button
  4. Click on the "New" button and add the path where Java is installed, followed by \bin. By default, Java is installed in C:\Program Files\Java\jdk-11.0.1 (If nothing else was specified when you installed it). In that case, You will have to add a new path with: C:\Program Files\Java\jdk-11.0.1\bin
    Then, click "OK", and save the settings
  5. At last, open Command Prompt (cmd.exe) and type java -version to see if Java is running on your machine

Step 1

Step 2

Step 3

Step 4

Step 5

Write the following in the command line (cmd.exe):

C:\Users\Your Name>java -version

If Java was successfully installed, you will see something like this (depending on version):

java version "11.0.1" 2018-10-16 LTS
Java(TM) SE Runtime Environment 18.9 (build 11.0.1+13-LTS)
Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.1+13-LTS, mixed mode)

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