synchronized & inheritance

Hi all,

I try to explain it as short as possible:

public abstract class A {

...

public synchronized void aaa() {...}

public synchronized void bbb() {...}

...

}

public class B extends A {

...

public synchronized void ccc() {...}

public synchronized void ddd() {...}

...

}

Now I create instance of B:

b = new B();

Access to synchronized methods b.aaa(), b.bbb(), b.ccc(), b.ddd() is protected with the same lock of object b. In other words (maybe not-so-java-pro words) these methods are all synchronized together.

Is it correct?

Would it make a difference if A was not abstract class but instead just class (other the same)?

Thanks.

[752 byte] By [Skoreca] at [2007-10-3 3:00:19]