JDK 9 REPL

Provide an interactive tool which evaluates declarations, statements, and expressions of the Java Programming Language: that is, provide a Read-Evaluate-Print Loop (REPL) for the Java Programming Language. Facilitate rapid investigation and coding. This will be called as "jshell" and it will be a command-line tool.

 JEP 222: jshell: The Java Shell (Read-Eval-Print Loop)

REPL feature is currently available in Scala, another JVM language.