The JavaFX platform enables developers to create and deploy Graphical User Interface (GUI) applications that behave consistently across multiple platforms. JavaFX 1.3 and older, were scripting languages, whereas JavaFX 2.x+/8.x enables users to use Java. FXML enables JavaFX to follow an MVC architecture.

For issues specific to version 4 of Rails. If your question applies to Ruby on Rails in general, use the tag [ruby-on-rails].

A cache is a mechanism for temporarily storing (caching) data locally in order to reduce access time to data stored far away. For CPU/disk/web browsing please use relevant tags (cpu-cache, diskcache,...)

Optimization is the act of improving a method or design. In programming, optimization usually takes the form of increasing the speed of an algorithm, or reducing the resources it requires. Another meaning of optimization is numerical optimization algorithms used in machine learning.

ASP.NET Web API is a framework for building HTTP services for clients like browsers and mobile devices. It is based on the Microsoft .NET Framework and an ideal choice for building RESTful services.

Questions about search algorithm mechanics and implementation. *NOT* for questions about using search tools within an API (e.g. Google, Bing, Facebook).

A subroutine available to applications accessing a relational database system.

JSF, Jakarta Server Faces (formerly known as JavaServer Faces) is a model-view-presenter framework typically used to create HTML form based web applications. Using the standard components and render kit, stateful HTML views can be defined using Facelets or JSP tags and wired to model data and application logic via backing beans.

Encryption is the process of transforming information (called plaintext) into an unreadable form (called ciphertext) using an encryption algorithm using a secondary parameter (called an encryption key). Only those who possess the decryption key can reverse the process and recover the original plaintext. Conceptual questions about encryption may get better answers on crypto.stackexchange.com.

Cloud Firestore is an auto-scaling real-time document database for storing, syncing, and querying data for mobile, web and server development.

The graphical representation of a mathematical function or a set of data. There are different kinds of plots, such as line plots, bar plots, or scatter plots.