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

How to Install Java OpenJDK on JRE/JDK on Linux Mint Distro

GNU/Linux Mint Installing Java OpenJDK Guide

The linked Tutorials Show you Step-by-Step How to Install and Getting-Started with Oracle-Sun Java OpenJDK JRE/JDK on GNU+Linux Mint Desktops.

The OpenJDK (Open Java Development Kit) is a Free and Open Source Implementation of the Java Platform, Standard Edition (Java SE).

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

How to Download and Install Oracle JDK on Linux Distros

Java OpenJDK JRE/JDK 6/7/8 Installation on Linux Mint Distribution- Featured

GNU/Linux Mint Java OpenJDK Installation Guide