Homework  Extra Credit  HW 1205

Distributes:  12/5/2017       Due: 12/12/2017

1. Modify class RunnableDemo
at http://www.tutorialspoint.com/java/java_multithreading.htm

to create 3 threads.
Each thread has a name, an integer id, and a different sleep time (long, medium, short).

Execute and demo. 

2. Modify class ThreadDemo at
http://www.tutorialspoint.com/java/java_multithreading.htm

to create 3 threads. Each thread has name, integer id, and different sleep time.

The threads are elements of an array, that is, they are not given unique
variable names.

3. Modify class ThreadClassDemo at
http://www.tutorialspoint.com/java/java_multithreading.htm

There are four threads: hello, bye, thread3, thread4.  All threads sleep for 1
ms after outputting their display message.
The threads thread3 and thread4 are both guessing the number. Both have the same
(highest) priority. Announce the thread that guesses the desired number first.

Terminate after guessing the correct number (the "loser" thread should not continue
guessing until it succeeds).

Turn in:
  Hardcopy
  Demo and walk-thru.