Install JDK

To start programming in Java, you need to install the Java Development Kit (JDK)

Step by Step Guide

Download the JDK

• Go to the official Oracle JDK download page or the OpenJDK download page.

Install the JDK

Windows

• Run the downloaded installer and follow the prompts to install the JDK.
• During installation, note the installation path (e.g., C:\Program Files\Java\jdk-11.0.10).

macOS

• Open the .dmg file and follow the prompts to install the JDK.

Linux

• Use package managers like apt or yum to install OpenJDK. For example, on Ubuntu, run in the terminal:

sudo apt update
sudo apt install openjdk-11-jdk

Set Up Environment Variables (Windows Only)

• Right-click on This PC or Computer and select Properties.
• Click on Advanced system settings, then on Environment Variables.
• In the System variables section, click New and add:
  • Variable name: JAVA_HOME
  • Variable value: Path to your JDK installation (e.g., C:\Program Files\Java\jdk-11.0.10).
• Find the Path variable, select it, and click Edit. Add a new entry:
  • %JAVA_HOME%\bin
• Click OK to save changes.

Verify the Installation

• Open a command prompt (Windows) or terminal (macOS/Linux) and run:

java -version

• You should see the installed JDK version displayed.