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I have an small app that write data to file then reading back data,
writeData();
readData();
but it seems that readData() is executed before WriteData() finished its execution, is there any away to wait for writeData()?
Thank you very much.
Reentrant lock is your best bet. And here’s a relevant example.
http://www.carfey.com/blog/java-concurrency-part-2-reentrant-locks/