c＃类初始化 [英] c# class initialization

问题描述

当一个类被另一个类初始化时会发生什么：

What happens when a class is initialized by another class like :

class a
{
   
}
class b
{

}
class c
{
   static void Main(String aa[])
   {
    a obj=new b();
   }

}

谢谢你!!!

thank u!!!

推荐答案

一旦你创建了一个类的实例，它就会被保存在内存中，直到父类执行结束。

这个实例可以用于垃圾收集。

Once you create an instance of a class, it is kept in memory till the parent class execution ends.
This instance is then viable for garbage collection.

试想一下：创建对象的区别是什么？方法是方法，无论什么类。想想，只需使用一些逻辑。







你需要了解两个内存对象涉及：引用本身和引用的对象。如果对象变得无法访问，它最终将被垃圾收集：



http://en.wikipedia.org/wiki/Garbage_collection_%28computer_science%29 [ ^ ]



在你的情况下，你不会成为能够使用您创建的项目：您创建它并在返回方法时忘记引用。所以，它没有任何实际意义。

-SA

Just think about it: what''s the difference where the object is created? Method is method, no matter of what class. Think, just use some logic.



You need to understand that two memory objects are involved: a reference itself and a referenced object. If the object becomes unreachable, it will be eventually garbage-collected:

http://en.wikipedia.org/wiki/Garbage_collection_%28computer_science%29[^]

In your case, you won''t be able to use the project you have created: you create it and forget the reference when the method is returned. So, it makes no practical sense.

—SA

你不能创建一个对象b除非您将A声明为父类，将B声明为子类，否则参考A。下面的行将给你编译时错误。

You cannot create an object of b with reference of A unless You declare A as parent class and B as child class. The below line will give you compile time error.

a obj=new b();

If you want to derive B class as reference of A,then declare
class B as child class
like this
class a
{

}
class b:A
{

}

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