Threads Doubt

[Prajakta Vaidya]

Given:

11. Runnable r = new Runnable() {
12. public void run() {
13. System.out.print(�Cat�);
14. }
15. };
16. Threadt=new Thread(r) {
17. public void run() {
18. System.out.print(�Dog�);
19. }
20. };
21. t.start();
 

What is the result?
A. Cat
B. Dog
C. Compilation fails.
D. The code runs with no output.
E. An exception is thrown at runtime.

Answer: B

I guessed the answer as B and it is correct, but I don't know the reasoning behind it.

Can anyone please explain ?

[Fu Dong Jia]

hi,
the first method:

public void run() {
System.out.print(�Cat�);
}

has been hide by the second method :

public void run() {
System.out.print(�Dog�);}

[Mohit Jain]

public void run()
{
System.out.print("Dog');
}

This method overrides the run() method defined in the Thread class, so "t.start()" normally calls the run() method of Thread will forwards the call to run() method of Runnable.

However, due to this overridding run() method will not be called from Thread so no call is forwarded to Runnable's run() method.
Instead the overriding run() method is called. That is why answer is - "Dog".