ReflectionMath.java

import java.lang.reflect.Method;

// http://www.quizful.net/post/java-reflection-api
public class ReflectionMath{
	public static double reflectCall(String func, Object... args) throws Exception{
		Method[] methods = Math.class.getMethods(); 

		for(Method method: methods){
			String name = method.getName();
			if(name.equals(func)){
				Double d = (Double) method.invoke(Math.class, args);
				return d;
			}
		}
		throw new Exception("Not found Math."+func);
	}
}