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18 hours ago · An interface as in C# and Java can be defined in C++ as a class containing only pure virtual functions, often known as an abstract base class or "ABC". The member functions of such an abstract base class are normally explicitly defined in the derived class, not inherited implicitly.
18 hours ago · nc localhost port. Selector. 以Mac为例，初始化得到的Selector的实例为 KQueueSelectorImpl 。. public abstract class SelectorImpl extends AbstractSelector{// The set of keys with data ready for an operationprotected Set<SelectionKey> selectedKeys;// 注册在 Selector 上的全部channel：客户端 、服务端protected HashSet<SelectionKey> keys;// Public views of the key setsprivate Set<SelectionKey> publicKeys; // Immutableprivate Set<SelectionKey> publicSelectedKeys ...
