• Learn Java - Free Interactive Java Tutorial. www.learnjavaonline.org.
  • See Tweets about #learnjavaonline on Twitter. See what people are saying and join the conversation.
  • Each layer has a set of connections that link it to the other layers of the network, making the network a directed acyclic graph.
  • www.codecademy.com/learn/learn-java - сам курс бесплатный, дополнительные проекты вроде как платно. www.learnjavaonline.org/en.