Java has had the ability to run a single code file directly by running `java <path-to-file.java>` since Java 11 - https://openjdk.org/jeps/330 https://openjdk.o

Java has had the ability to run a single code file directly by running `java <path-to-file.java>` since Java 11 - https://openjdk.org/jeps/330 https://openjdk.org/jeps/330. And it's had a Java REPL since Java 9.