This week's book giveaway is in the General Computing forum. We're giving away four copies of Arduino in Action and have Martin Evans, Joshua Noble, and Jordan Hochenbaum on-line! See this thread for details.
Can you please tell me how Hashcode & Equals are related to each other. I didnt get how equals & Hashcode methods are called when you are calling get method on HashMap. In what are all scenarios these Hashcode & Equals are called internally.