JShell

JShell is a Java read-eval-print loop which was first introduced in the JDK 9. It is tracked by JEP 222 jshell: The Java Shell . One reason why JShell was proposed for Java 9 is the lack of a standard interactive environment for the language; the de facto library to use a Java REPL was often BeanShell, which has been dormant since 2003, and arbitrarily diverged from the Java language.

Example


jshell> int a = 
a > int 
jshell> int fact 
jshell> for 
 ...> a = fact;
jshell> a
a > int