java-development-kit-download

Java Development Kit Download: How to Install JDK

The Java Development Kit (JDK) is an essential tool for Java developers. It includes the Java Compiler (javac), Java Runtime Environment (JRE), and development tools required to build and run Java applications.

In this guide, you’ll learn:

  • Where to download JDK safely
  •  How to install JDK on Windows, macOS, and Linux
  • How to set up environment variables for Java development
  • Best practices for managing multiple JDK versions
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What is Java Development Kit (JDK)?

The JDK (Java Development Kit) is a software package that provides developers with:

  • Java Compiler (javac) – Converts Java source code into bytecode.
  • Java Runtime Environment (JRE) – Runs Java applications.
  • Java Debugger (jdb) – Helps debug Java programs.
  • Java Libraries & Tools – Essential for software development.

Learn more: Oracle JDK Documentation

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Where to Download Java Development Kit (JDK)?

There are multiple sources to download JDK, depending on the version you need:

1. Oracle JDK (Official Java Development Kit)

2. OpenJDK (Free & Open-Source)

  • Download Link: https://openjdk.org
  • Best for open-source projects and community-driven development

3. Amazon Corretto (AWS-Supported JDK)

Explore More: Comparison of Java JDK Versions

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How to Install Java Development Kit (JDK) on Windows

Step 1: Download JDK

  1. Visit Oracle JDK Downloads.
  2. Select Windows Installer (.exe) and download the latest version.

Step 2: Install JDK

  1. Run the installer and follow the setup instructions.
  2. Select the installation directory (default: C:\Program Files\Java\jdk-XX).

Step 3: Set JAVA_HOME Environment Variable

  1. Open Control Panel → System → Advanced System Settings.
  2. Click on Environment Variables → Add a new variable:
sh
JAVA_HOME = C:\Program Files\Java\jdk-XX

 3. Add %JAVA_HOME%\bin to the Path variable.

Step 4: Verify Installation

Run the following command in Command Prompt:
sh
java -version

Read More: Setting Up JAVA_HOME in Windows

How to Install Java Development Kit (JDK) on macOS

Step 1: Download JDK for macOS

  1. Visit Oracle’s Java SE Downloads.
  2. Download the .dmg installer for macOS.

Step 2: Install JDK on macOS

  1. Open the downloaded .dmg file and follow the installation instructions.
  2. Verify the installation by running:
sh
java -version

Step 3: Set JAVA_HOME on macOS

  1. Open the terminal and type:
    sh
    export JAVA_HOME=$(/usr/libexec/java_home
  2. To make this permanent, add it to .bash_profile or .zshrc.

Read More: How to Install Java on macOS

How to Install Java Development Kit (JDK) on Linux

For Ubuntu/Linux:

sh
sudo apt update sudo apt install openjdk-17-jdk

For CentOS/RHEL:

sh
sudo yum install java-17-openjdk

Verify the Installation:

sh
java -version

Read More: Installing Java on Linux

Managing Multiple JDK Versions

If you need to work with multiple JDK versions, use SDKMAN! on Linux/macOS or manually update the Windows PATH.

Switch Between JDK Versions on Linux/macOS:

sh
sdk install java 17.0.2-open
sdk use java 17.0.2-open

🔗 Learn more: SDKMAN! Java Version Manager

Managing Multiple JDK Versions

Best Practices for JDK Installation and Configuration

  • Always use the latest stable version for security and performance.
  • Set JAVA_HOME correctly to avoid compatibility issues.
  • Use OpenJDK for open-source development and enterprise projects.
  • Verify installation by running java -version after setup.

Check out: Java Best Practices

Conclusion

Downloading and installing the Java Development Kit (JDK) is the first step to learning Java programming. By following this guide, you can easily set up JDK on Windows, macOS, and Linux and start developing Java applications.

Explore More:
Oracle Java Downloads
OpenJDK Official Site
Java Development Documentation

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