qq_41452805的博客

今天来看一看JDK8中String的源码

先来看一下oracle官方对Object的解释：* Class {@code Object} is the root of the class hierarchy.* Every class has {@code Object} as a superclass. All objects,* including arrays, implement the methods of this class.翻译过来就是说：Object类是（java里）类层次结构的跟。任何一个类都有一个Object超类，所有