Java

Check and Download

Check if Java is already installed.

If you see an output like below then Java is already installed:

java version "1.8.0_112"
Java(TM) SE Runtime Environment (build 1.8.0_112-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.112-b16, mixed mode)

If not, you will see:

No Java runtime present, requesting install.

You should also see a dialog pop up:

To use the “java” command-line tool you need to install a JDK.

Click More Info to install.
Safari will be launched and you should see Oracle website loaded on Java SE Downloads page.
Click the square Java download button: Java Platform (JDK) 8u111 / 8u112. (or the latest version at that time)
On the "Java SE Development Kit 8 Downloads" page:
Select "Accept License Agreement".
Then click Mac OS X x64 to download.
- e.g. jdk-8u112-macosx-x64.dmg

Open the dmg file.
Then double-click on the package icon to proceed.
Once the installation is finish, type this again in Terminal:
```
java -version
```

You should able to see output like these:

java version "1.8.0_112"
Java(TM) SE Runtime Environment (build 1.8.0_112-b16)
Java HotSpot(TM) 64-Bit Server VM (build 25.112-b16, mixed mode)