import java.util.List;
import javax.script.ScriptEngine;
import javax.script.ScriptEngineFactory;
import javax.script.ScriptEngineManager;
public class Main {
public static void main(String[] args)throws Exception {
ScriptEngineManager mgr = new ScriptEngineManager();
List engines = mgr.getEngineFactories();
for (ScriptEngineFactory engine : engines) {
System.out.println(engine.getEngineName());
for (String n : engine.getNames()) {
System.out.println("Short name : " + n);
}
}
ScriptEngine engine = mgr.getEngineByName("JavaScript");
String myJSCode = "function myFunction(){return (4+2);}myFunction();";
System.out.println(engine.eval(myJSCode));
}
}