$schemamarkup = get_post_meta(get_the_ID(), 'schemamarkup', true); if(!empty($schemamarkup)) { echo $schemamarkup; }

How to Install OpenJDK 13 on Mint Gnu/Linux Distro

GNU/Linux Mint Installing Java OpenJDK 13 Guide

Hi! The Tutorial shows you Step-by-Step How to Install Oracle-Sun OpenJDK 13 JRE/JDK on Mint GNU+Linux Mate/Cinnamon/Xfce/KDE Desktops.

And Java OpenJDK 13 for Linux Mint (Open Java Development Kit) is a Free and Open Source Implementation of the Java Platform, Standard Edition (Java SE).

Moreover, the Oracle Java JDK/JRE is based on the OpenJDK Source Code. In Addition, it contains Closed-Source Components.

How to Install OpenJDK 13 on Mint GNU/Linux - Featured

GNU/Linux Mint Java OpenJDK 13 Installation Guide