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Lock and Unlock methods

 
Anonymous
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In the FNB assignment, I have to implement the two methods
public void lock(int record)
public void unlock(int record).
Can I add a synchronized keyword to these methods like "public synchronized void lock(int record)" or do I have to strictly use "public void lock(int record)".
Your help is greatly appreciated.
Thanks
Junaid
 
Anonymous
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Yes,
You can override a non-synchronized method by a synchronized method.
 
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