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scenebuilder
Scene Builder is a visual, drag 'n' drop, layout tool for designing JavaFX application user interfaces.
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InfluxDB
Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.
If you learnt how to build a web application with PHP then write that application over to Java. For that you should learn Spring Boot (Java framework for web development). Check out the following links (official documentation and also tutorials and guides): https://spring.io/ and https://www.baeldung.com/ So set up a basic "Hello world" web application with Spring Boot and then write your PHP application over to Java.
Additionally you can learn JavaFX for desktop applications. JavaFX with Gluon Scene Builder (https://gluonhq.com/products/scene-builder/ ).