如何浏览Java类资源？

import java.lang.reflect.*;

Class<?> clazz = MyClass.class;

Constructor<?>[] constructors = clazz.getDeclaredConstructors();

Method[] methods = clazz.getDeclaredMethods();

Field[] fields = clazz.getDeclaredFields();

Annotation[] annotations = clazz.getAnnotations();

Class<?> superclass = clazz.getSuperclass();
Class<?>[] interfaces = clazz.getInterfaces();

Type[] genericInterfaces = clazz.getGenericInterfaces();

Object[] enumConstants = clazz.getEnumConstants();

Object instance = clazz.newInstance();

Method method = clazz.getDeclaredMethod("myMethod");
method.invoke(instance);