Looks like you didnt link the article
Probably filled in the url field and then when inserting an image it overrode that with the image url (both cant coexist on a post)
JavaFX is a software platform and a graphical user interface (GUI) toolkit that allows developers to create rich and interactive applications for desktop, mobile, and embedded devices. It provides a powerful set of tools and APIs for building modern, visually appealing applications.
JavaFX was introduced as a successor to the Swing framework. It is designed to provide a more advanced and flexible way of developing user interfaces compared to Swing, with improved graphics and multimedia capabilities.
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Looks like you didnt link the article
Probably filled in the url field and then when inserting an image it overrode that with the image url (both cant coexist on a post)