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 *     from this software without specific prior written permission.

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 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS

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import javax.script.*;

public class InvokeScriptFunction {

    public static void main(String[] args) throws Exception {

        ScriptEngineManager manager = new ScriptEngineManager();

        ScriptEngine engine = manager.getEngineByName("nashorn");

        // JavaScript code in a String

        String script = "function hello(name) { print('Hello, ' + name); }";

        // evaluate script

        engine.eval(script);

        // javax.script.Invocable is an optional interface.

        // Check whether your script engine implements or not!

        // Note that the JavaScript engine implements Invocable interface.

        Invocable inv = (Invocable) engine;

        // invoke the global function named "hello"

        inv.invokeFunction("hello", "Scripting!!" );

    }

}