I am using JDeveloper18.104.22.168.
Can somebody guide me if there is a component in JDeveloper as givien in the "Blog Topic" section of the following URL?
Andrejus Baranovskis Blog -->Check the "Blog Topic" section.
Well there is this doc Marrying the Worlds of ADF and HTML 5 from Lucas Jellema
however it's for 12c. There is none such component in ADF in your version. You can try to adopt from the article.
Also if you are using WebCenter - there is a built in tag cloud component there:
Adding Oracle WebCenter Services to Your Application