Download and Install JDK on macOS

JVM Tutorials - Herong's Tutorial Examples

∟Download and Install JDK on macOS

This section provides a tutorial example on how to download and install the latest version JDK, which contains the HotSpot JVM, on a macOS system. A simple Java program was entered, compiled, and executed to verify the JDK installation.

In order try the HotSpot JVM, I downloaded and installed JDK 14 (Java SE 14) on my macOS system:

1. Go to Oracle Java SE download website at https://www.oracle.com/java/technologies/javase-downloads.html.

2. Click "JDK Download" next to "Java SE 14".

3. Click "jdk-14.0.1_osx-x64_bin.tar.gz" at the "macOS Compressed Archive" Line from the download list. It will be saved to your "Downloads" directory automatically.

4. Start a Terminal window and run commands below to install it.

herong$ cd ~/Downloads

herong$ gunzip jdk-13_osx-x64.bin.tar.gz

herong$ tar -xf jdk-14.0.1_osx-x64_bin.tar

herong$ sudo mv jdk-14.0.1.jdk/ /Library/Java/JavaVirtualMachines/

herong$ java -version
java version "14.0.1" 2020-04-14
Java(TM) SE Runtime Environment (build 14.0.1+7)
Java HotSpot(TM) 64-Bit Server VM (build 14.0.1+7, mixed mode, sharing)

Note that you don't have to remove JDK older versions. They can stay their quietly together with the newer version as shown below:

herong$ ls -l /Library/Java/JavaVirtualMachines/
drwxr-xr-x@ 5 herong  staff  170 Feb 13 21:05 jdk-13.jdk
drwxr-xr-x@ 3 herong  staff  102 Mar  5 19:08 jdk-14.0.1.jdk