import javax.script.ScriptEngine;

import javax.script.ScriptEngineManager;

import javax.script.ScriptException;

public class RunScriptDemo {

    public static void main (String[] args) {

        ScriptEngineManager manager = new ScriptEngineManager ();

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

        String script = "print ('www.java2s.com')";

        try {

            engine.eval (script);

        } catch (ScriptException e) {

            e.printStackTrace();

        }

    }

}