How to Install OpenJDK on a Mac

If you're looking to install OpenJDK on your Mac, there are several steps you'll need to follow. First, you'll need to download the OpenJDK package for macOS from the official AdoptOpenJDK website.

Once downloaded, you can install the package by double-clicking on it and following the installation prompts. After installation, you can check that OpenJDK is installed correctly by running `java -version` in your terminal. This should display information about the version of OpenJDK installed on your system.

If you want to uninstall OpenJDK at a later time, you can do so by using the `apt-get purge` command. However, be aware that this will remove all traces of OpenJDK from your system.

It's also worth noting that you can install OpenJDK without going through the package installation process. You can extract the archive and move it to a place where macOS searches for Java JDK. This is useful if you want to keep the installation separate from the default Java installation on your Mac.

To compile and run a simple program using OpenJDK, you can use the `javac` command to compile your code and then run it with the `java` command. For example, you can create a file called `HelloWorld.java` with the following code:

```java

public class HelloWorld {

public static void main(String'' args) {

System.out.println('Hello, World!');

}

```

You can then compile and run this program using the following commands:

```bash

javac HelloWorld.java

java HelloWorld

```

This will output 'Hello, World!' to your terminal.

In conclusion, installing OpenJDK on a Mac is a relatively straightforward process that involves downloading the package from AdoptOpenJDK, installing it, and checking that it's installed correctly. With OpenJDK installed, you can compile and run Java programs using the `javac` and `java` commands, respectively.

Mac install openjdk