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What should be the return for this case - DAO, DAOImpl, Manager, Controller ?

 
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Dear expert,

I have re-write my insert method and changed it to prepared statement to avoid sql injection attack.

Now, I am facing problem in the manager class where the Eclipse EE just asked me to put the return type as return but then it doesn't work out.. as the data still can't be inserted into the database

Hope someone can correct my code. Tks.

Here's the code :











 
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Can you be more specific about the nature of the failure? Do you get a compilation error? Runtime error? Unexpected program function? Other?
 
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