package com.sumit.learn.java8;

import javax.script.ScriptEngine;

import javax.script.ScriptEngineManager;

import javax.script.ScriptException;

/**

* @author sumit

* Nashorn javascript engine newly added in java 8 , before it there was Rhino engine

*

* How to open Nashorn console

* Ans. jjs (command)

*

*/

public class UseNashorn {

public static void main(String[] args) {

ScriptEngineManager scriptEngineManager = new ScriptEngineManager();

ScriptEngine scriptEngine = scriptEngineManager.getEngineByName("nashorn");

String script = "var welcome = 'Welcome javascript world';"

+ "welcome;";

try {

String result = (String) scriptEngine.eval(script);

System.out.println(result);

} catch (ScriptException e) {

System.out.println("There was an error while executing javascript.");

e.printStackTrace();

}

}

}