Greetings Tom.
What build system are you using:
a) ANT
add your JAR to the LIB folder
b) Maven
com.github.cliftonlabs
json-simple
4.0.1
c) Gradle
add to the dependency section
// https://mvnrepository.com/artifact/com.github.cliftonlabs/json-simple
implementation 'com.github
I don't know the answer to this question because that will depend a little
on what build tool you are using. You could start by right-clicking on your
project from the projects pane and navigating to your dependent libraries
through the project's properties or something similar.
I hope that helps.