Set and get global variables

// Obtain an instance of JavaScript engine
ScriptEngineManager manager = new ScriptEngineManager();
ScriptEngine engine = manager.getEngineByName("nashorn");

try {

// Set value in the global name space of the engine engine.put(“name”,“Nashorn”); // Execute an hardcoded script engine.eval(“var value=‘Hello’+name+‘!’;”); // Get value String value=(String)engine.get(“value”); System.out.println(value);

} catch (ScriptException ex) {

// This is the generic Exception subclass for the Scripting API ex.printStackTrace();

}

// Outcome:
// 'Hello Nashorn!' printed on standard output