This week's book giveaway is in the OCPJP forum. We're giving away four copies of OCA/OCP Java SE 7 Programmer I & II Study Guide and have Kathy Sierra & Bert Bates on-line! See this thread for details.
The collection chapter (Page 18 of 50) from K & B book shows the diagram of MAP interface and LinkedHasMap class directly implemented from MAP interface.But the truth is the LinkedHasMap is subclass of HasMap. I don�t know why author show�s the diagram like that. Pls explain to me.