This week's book giveaways are in the Scala and Android forums.
We're giving away four copies each of Machine Learning Systems: Designs that scale and Xamarin in Action: Creating native cross-platform mobile apps and have the authors on-line!
See this thread and this one for details.
Win a copy of Machine Learning Systems: Designs that scale this week in the Scala forum
or Xamarin in Action: Creating native cross-platform mobile apps in the Android forum!
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Threads from OCA/OCP Java SE7 Programmer I&II Study Guide  RSS feed

 
Greenhorn
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I am studying OCP Java SE7 Programmer II exam. OCA/OCP Java SE7 Programmer I&II Study Guide  by Kathy Sierra and Bert Bates. I am in Chapter 13 Threads now. I came across with the codes from the book, which doesn't seem to be working. I could not figure out why. The following are the codes.



And the output is>>>



As you see the code doesn't reach to "The wait is over". Apparently notifyAll() does not really notify the thread in the Reader class. What am I missing? Thank you for your time in advance.
 
Waylon Wolf
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I figured that out. The waiting thread has to start before the notifing thread. That is.



 
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