Question on topic Collection & Thread

[abdul.sayeed]

Hi all, I have following issues, for which I need solutions. PLease take kind attention to answer..

1) To achieve a java.util.HashMap object I can use two different statements,
viz,
a) Map hashMap = new HashMap();
b) HashMap hashMap = new HashMap ();

Issue: Among the two, which technique is recommended & advantageous
& why?

2) To create a thread Object one way is implementing 'Runnable' interface.
The Runnable interface contains only a single abstract method run();

Thus the normal statement to create my own class for thread is:

class MyThread implements Runnable{
// code for thead instantiation & call to start & so on..
}

My Search:
--------------

Instead of implementing Runnable I will write my Interface containing run()
abstract method.

like: interface MyRunnable{
void run();
}
class MyThread implements MyRunnable{
// code for thead instantiation & call to start & so on..
}


Issue:
-----------

When I do this I got compilation error like(in my words):
could n't find Thread(this,Sting)

Please find me the reasons.

Thanx & Regards