What is the JRUBY platform?

Question

Is it a ruby environment written in Java? If so, what is so special about it?

Answer 1

A multipurpose language that focuses on simplicity and productivity, it combines the best features of many compiled and interpreted languages, such as easy development of large programs, rapid prototyping, almost-real-time development, and compact code. Ruby is a reflective, dynamic, and interpreted object-oriented scripting language, and JRuby is a Java programming language implementation of the Ruby language syntax, core libraries, and standard libraries.

With JRuby, you get all of the advantages of Ruby plus interoperability with Java platform applications (Java applications) and access to the full range of Java platform functionality. JRuby and the Java platform are a compelling combination that you can apply to any programming situation. For example, from a JRuby script, you can call the Java platform Math library to access its powerful computational capabilities or call the Java platform Swing library to display a dialog box that requires end-user input before allowing the script to proceed. Also, you can use the JSR 223 Scripting APIs or the Bean Scripting Framework (BSF) APIs to call a JRuby script from within a Java application to, for example, invoke back-end processing scripts from a servlet to update or generate web content.