Oracle NetBeans
NetBeans is an open-source Integrated Development Environment (IDE) written in the Java programming language, used primarily to develop web, desktop, and mobile applications in the Java language. However, it also supports other languages, such as C, C++, PHP, etc. NetBeans is currently available for Windows, macOS, and Linux operating systems.
A number of capabilities provided by NetBeans can aid in the efficient development of an application. It offers a Java Editor with Java hints and rapid renaming functionality, a Maven graph layout switcher, and PrimeFaces code generators for building whole PrimeFaces skeletal CRUD apps with database connections. Additionally, the IDE is quite flexible, enabling you to install plugins that bring new functionality.