Question

synchronize and lock

Asked by: gobicse

hi there
   can anyone explain the difference between synchronize and lock in java.. with example...
if we use synchronize keyword to a method,it means at one time one thread can access it(if i am wrong correct me)..right?... how abt lock...

anyhelp will be greatly appreciated..

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Asked On
2009-11-06 at 12:47:44ID24879266
Tags

java

Topic

New to Java Programming

Participating Experts
2
Points
500
Comments
6

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Answers

 

by: objectsPosted on 2009-11-06 at 12:54:40ID: 25762950

thats correct, what lock exactly are you referring to?

 

by: gobicsePosted on 2009-11-06 at 12:58:04ID: 25762987

file lock and shared lock... and any other lock if java have....

 

by: afibarraPosted on 2009-11-06 at 13:01:11ID: 25763015

-Every object in Java has a built-in LOCK that only comes into play when the object has synchronized method code.

-Each object has just one lock.

-If two threads are about to execute a synchronized method in a class, and both threads are using the same instance of the class to invoke the method, only one thread at a time will be able to execute the method.

So, you can realize that LOCK and SYNCHRONIZE come together.

 

by: objectsPosted on 2009-11-06 at 13:01:11ID: 25763016

 

by: gobicsePosted on 2009-11-06 at 13:04:47ID: 25763049

thanks guys....

 

by: afibarraPosted on 2009-11-06 at 13:19:50ID: 25763158

yw =)

20120131-EE-VQP-002

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