Differences between Synchronized methods and blocks

Question

Hi all,
I would like to differences between Synchronized methods and blocks.
- Muni

Answer 1

Well, you'll get so many of right answers in next ten to thirty minutes.
I like to yield :)
Oooo... Ten minutes has passed.
Synchronized block is a toilet room with a lock in a public lavatory.
Only one person(running thread) can have the lock at a time.
And, she/he have to receive the lock from a particular object obj like:
synchronized(obj){.....} // one object has only one lock for this {} toilet and for any other toilets how many there are... *
(*: In other words, while a thread is executing a synchronized(obj){} block, other threads can't enter other synchronized(obj){} blocks.)
Synchronized method is a kind of synchronized block.
This special block is defaulted to have lock from the object on which the method is defined.
public class Foo{public synchronized Method(){}}
use the lock of a Foo object.
Message was edited by:
hiwa
Message was edited by:
hiwa