Java tutorial
import java.lang.reflect.Constructor; import java.lang.reflect.Modifier; public class Main { public static void main(String... args) throws Exception { Class<?> c = Class.forName("java.lang.String"); Constructor[] allConstructors = c.getDeclaredConstructors(); for (Constructor ctor : allConstructors) { System.out.println(Modifier.toString(ctor.getModifiers())); } } }