java和Superclasses中的继承（Object，Class） [英] Inheritance in java and Superclasses(Object, Class)

问题描述

是 java.lang.Object 所有自定义类/对象的父类是否隐式继承？我以为java不支持多继承。我问的原因是，如果我已经继承自另一个类在我的自定义类，再次java是强制隐藏继承的 java.lang.Object 在它的顶部，是不是多继承？

Is java.lang.Object superclass of all the custom class/objects inherited implicitly? I thought java didn't support multiple inheritance. The reason I ask is if I already inherit from another class in my custom class and again java is forcing implicit inheritance of java.lang.Object on top of it, is it not multiple inheritance?

此外，java.lang.class Class也是所有自定义类/对象的超类？如果不是，在java反射中，我们可以获得任何类传递的类的类型或调用isInstance任何对象？

Also, is java.lang.class Class also the superclass for all custom classes/Objects? If not, how in java reflections we can get the type of class for any class passed or call isInstance on any object?

推荐答案

一切都是一个对象，说你可以看到这样的结构：

Everything is an Object, that said you could see the structure as this:

Object

Animal

Cat

而不是这样：

Object    Animal

      Cat

其中 Cat 扩展了两者，它不像最后一个例子，但它 Cat c $ c> extends 扩展 对象 code>。

Where Cat extends both, it's not like this last example, but it's Cat that extends Animal which extends Object.

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