上课 [英] loading the class

问题描述

大家好，

我毫不怀疑.如果我错了，请纠正我.

(1)我已经阅读了很多论坛，他们说Class.forname("X")会将类X加载到内存中或注册您的类.在javadocs中，他们说对forName("X")的调用会导致在这种情况下，类的初始化与将类加载到内存中相同吗?

(2)调用类意味着创建类的实例(对象).这与该类的实例不同.这样，您就可以通过反射来获取有关特定类的信息，从而可以动态地访问类的字段或方法.

Hi all,

I have few doubts. Please correct me if I am wrong.

(1) " I''ve read so many forums and they say Class.forname("X") will load the class X into memory or register your class. In javadocs, they say a call to forName("X") causes the class named X to be initialized. " in this context, initialization of class is same as loading the class into memory ?

(2) invoking the class means creating the instance (object) of the class.

解决方案

This call returns the runtime Class object; this is not the same as an instance of the class. This allows you to get information about a particular class through reflection, which in turn allows you to access fields or methods of a class dynamically.

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