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Thread: synchronized block

  1. #1
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    Default synchronized block

    The general form of synchronized block is
    class table 
    { 
    ....... 
    void printTable(int n) 
    { 
    synchronized(obj) 
    { 
    ...... 
    } 
    } 
    }
    Here obj means object of table class or object of any class.
    If we write this in place of obj ,then an object of table class canít access the synchronized block from two different threads.
    MYDOUBTS:
    1)Is it possible to write name of object other than table class in place of obj?
    2)If write other objectís name other than table class in place of obj,what it means?
    3)Then which object canít access the synchronized block simultaneously?


  2. #2
    Super Moderator Norm's Avatar
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    Default Re: synchronized block

    Read the API doc of the Object class's wait() and notify() methods. A lot is explained there.
    If you don't understand my answer, don't ignore it, ask a question.

  3. #3
    Super Moderator jps's Avatar
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    Default Re: synchronized block

    You can synchronize on any object.
    Check out this tutorial
    If you still have questions please ask again.

    in short:
    1. yes
    2. you can use any object for a lock
    3. when an object is locked, only the holder of the lock has access

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