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

Step-by-step – Oracle JDK 11 Installation in Linux Mint 20

August 16, 2020 | By the+gnu+linux+evangelist.

Switch

  1. 5. Switching to Java 11

    Now to Switch Java to JDK 11
    This is Valid only if you have to Manage more than One Java Releases:

    sudo update-alternatives --config java

And for the Java Compiler instead:

sudo update-alternatives --config javac

Choose the Number entry corresponding to Oracle JDK 11.
Test your Java 11 Installation:

java --version


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