How is Repl.it built?

When a Repl.it IDE browser creates a new file, it obtains a signed URL from the web server to create the file in Cloud Storage . “That way the browser’s writing to and reading from Cloud Storage directly,” says Amjad. “This enables Repl.it to use Cloud Storage to synchronize its files and file system.”

Read more

Is there a Java REPL?

The Java Shell tool (JShell) is an interactive tool for learning the Java programming language and prototyping Java code. JShell is a Read-Evaluate-Print Loop (REPL), which evaluates declarations, statements, and expressions as they are entered and immediately shows the results. The tool is run from the command line.

Read more