This week's book giveaways are in the iOS and Features new in Java 8 forums. We're giving away four copies each of Barcodes with iOS: Bringing together the digital and physical worlds and Core Java for the Impatient and have the authors on-line! See this thread and this one for details.
Perhaps you have got this exception
Exception in thread "main" foojava.lang.IllegalThreadStateException
at java.lang.Thread.start(Unknown Source)
You have started the thread twice. It is never legal to start the thread more than one time. Once the thread completes it's execution it will never restarted.
you can remove the 2nd t.start(); from code.