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No, it was not executed. Now it is so obvious. Thank you very much :)

The null variable is conn, which is initialized by

conn = DriverManager.getConnection ("jdbc:mysql://localhost/test", "root", "");

The MySQL database I'm trying to connect to is on the...

Thank you for the welcome and for the tips, GregBrannon!

Hi,

Can you please tell me what have I done wrong n the following code?
I'm trying to create a new instance carte of object Carti using the constructor and then to insert a row into a table...