Programmers could get REPL in official Java
See the original posting on JavaWorld
Proponents of open source Java are investigating the possibility of formally adding a REPL (Read Evaluate Print Loop) tool to the language.
Java advocates are considering REPL as part of Project Kulla, currently under discussion on the openjdk mailing list for open source Java. Featured in Lisp programming, REPL expressions replace entire compilation units; the REPL evaluates them and offers results. With REPL, the overhead of compilation is avoided for looping operations, says Forrester analyst John Rymer.
“From a developer perspective, it’s nice to be able to interact with the code while it’s running in real time without having to recompile/redeploy,” analyst Michael Facemire, also of Forrester, says.