import java.util.Scanner;

import javax.script.ScriptEngine; import javax.script.ScriptEngineManager; import javax.script.ScriptException;

public class test6 {

public static void main(String[] args) throws Exception {	ScriptEngineManager se =new ScriptEngineManager();	ScriptEngine s = se.getEngineByName("JavaScript");	Object oj=s.eval("function add(a,b){return a+b};add(2,4)");	System.out.println(oj);	}

}