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How to list all the classes, interfaces, and enums in JShell in Java 9?
The JShell tool also called REPL(Read-Evaluate-Print-Loop) introduced in Java 9 that allows us to execute Java code and getting immediate results. We can quickly evaluate expressions or short algorithms without creating a new project, compile or build it. With the help of JShell, we can execute expressions, use imports, define classes, methods, and variables.
We can list out all the classes, interfaces and enums defined in the current JShell session by using "/types" command.
In the below code snippet, we have created the "Test" class, "TestInterface" interface, and enum "EnumTest" in the JShell tool.
C:\Users\User> jshell
| Welcome to JShell -- Version 9.0.4
| For an introduction type: /help intro
jshell> class Test {
...> public static void main(String args[]) {
...> System.out.println("TutorialsPoint");
...> }
...> }
| created class Test
jshell> interface TestInterface {
...> public void sum();
...> }
| created interface TestInterface
jshell> enum EnumTest {
...> TUTORIALSPOINT,
...> TUTORIX
...> }
| created enum EnumTestIn the below code snippet, list out all the classes, interfaces, and enums by using "/types" command.
jshell> /types | class Test | interface TestInterface | enum EnumTest jshell>
Updated on: 31-Mar-2020
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