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Static variable

rex tony
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Joined: Aug 29, 2007
Posts: 159
Static variable Is Thread Safe?
Jesper de Jong
Java Cowboy
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Joined: Aug 16, 2005
Posts: 14269
    
  21

No, static variables are not automatically thread-safe. You'll have to take care of synchronization if you have multiple threads that are accessing a static variable simultaneously.


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camelia codarcea
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Joined: May 08, 2007
Posts: 36
Hello,

Static variable should be changed inside static syncronised methods in order to be thread-safe.
Two threads that access a static syncronized method, will always block each other, regardless if they are using the same instance or two different instances.


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subject: Static variable