hello.java

/*
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 * The Universal Permissive License (UPL), Version 1.0
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 * (a) the Software, and
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 * (b) any piece of software and/or hardware listed in the lrgrwrks.txt file if
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///usr/bin/env jbang "$0" "$@" ; exit $?
//JAVA 17+
//DEPS org.graalvm.python:jbang:${env.GRAALPY_VERSION:25.1.0}
// specify python packages and their versions as if used with pip
//PIP termcolor==2.2

import org.graalvm.polyglot.Context;
import org.graalvm.polyglot.PolyglotException;
import org.graalvm.python.embedding.GraalPyResources;

public class hello {
    public static void main(String[] args) {
        System.out.println("Running main method from Java.");
        try (Context context = GraalPyResources.createContext()) {
            switch (args.length) {
                case 0:
                    context.eval("python", "from termcolor import colored; print(print(colored('hello java', 'red', attrs=['reverse', 'blink'])))");
                    break;
                case 1:
                    context.eval("python", args[0]);
                    break;
                default:
                    throw new IllegalArgumentException("The main() helper only takes 0-1 arguments.");
            }
        } catch (PolyglotException e) {
            if (e.isExit()) {
                System.exit(e.getExitStatus());
            } else {
                throw e;
            }
        }
    }
}