QUIZ COSC 341   q 1205		Fall 2017

Answer the following. Computer use is ok

1. What is run() 
(answer with respect to threads or runnables)

2. What does sleep() do?

3. Why does the code say Thread.sleep()?  I.e.,
what happens?

4. In ThreadClassDemo, a thread is instantiated with

new Thread(hello)

4.a. What is hello?

4.b Give a copy of the constructor documentation from Java API for
new Thread(hello)


--------------------------------------------------------------------

Solutions

1. run() gives the executable code of a thread.

If the code extends Thread, then run() is almost always supplied to override the
run() that the Thread class had to supply (because Thread implements the
interface Runnable, and Runnable requires a run() ).

2. sleep() puts the executing thread to sleep for the specified time.
E.g., sleep(50) puts the thread to sleep for 50ms.

3. Thread.sleep() can be said becuse sleep is a static method of the Thread class.

4 a). hello is a Runnable object

b) public Thread (Runnable target) "Allocates a new Thread object. This constructor
 has the same effect as Thread (null, target, gname), where gname is a newly
 generated name.