链接的对象列表！ [英] linked List of Objects!

问题描述

我正在尝试将对象添加到链接列表中.
我有一个名为书"的类.
我使用以下代码将图书对象"添加到链接列表中:

I''m Trying to add Objects to a Linked List.
I Have a Class Named "Books".
I add Books Objects to the linked list using the following Code :

<br />

LinkedList<Books> List = new LinkedList<Books>();
List.add(new Books());

但是，当我尝试获取链接列表的大小时，无论我添加的书有多老，它始终为零"0".
例如:

But When I Try to get the size of my Linked List , it is always Zero "0" no matter how manny Books I Add.
for example :

System.out.println(List.size());

在这里它将输出"0" ...
该怎么办 ??我的代码有什么问题?
________________________________________
请我帮忙..

Here it will output "0"...
What to do ?? what is wrong with my code ?
________________________________________
PLEASE I NEED YOUR HELP ..

推荐答案

在调试器中运行它，以确保add实际上是，并且名为在List的同一实例上>> List.size()之前.几乎不可能是其他东西.

—SA

Run it under debugger to make sure that add is actually called, and called before List.size() on the same instance of List. It hardly can be something else.

—SA

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