My problem is how do I make the tmpTutor.getId() and tmpSubject.getId() mehtod static so that I could implement in my controller ?
Cos right now, I can only insert the tutorDAOImpl when I do the preparedStatement for tutor.
When I want to do the associateTutorToSubject, I can't do it the way like yo said cos tutorDAOImpl and SubjectDAOImpl are both separate classes. And so there is no way for the controller to read the getId from the tutorDAOImpl etc.
Hi! I am learning servlet, can someone kind enough to explain where to place the username, password, address, and port to be used in connection to a MySQL database in WAMP instead of placing it in the code? So that if the address of MySql or server is changed I will not have to change the code. Take the succeding as an example, "jdbc:mysql://localhost:3306/sonoo","root","root"). I am thinking if they are written in the code and they will be changed like the password for mysql will be changed, I will have to change the code. Thus, where will I put the localhost, 3306, sonoo, root, and root so that I will not change the code everytime the address and password, etc. will change. I am using netbeans and apache tomcat. Thank you so much.
No, it should be 5. Since this is a simple variable, it is passed by value, so each called method gets a copy of the variable a. When they try to change it they only change the copy they have received, not the original variable. You should go to The Java™ Tutorials[^], especially section Passing Information to a Method or a Constructor[^] which explains it in detail.
Dear Richard your comment help me a lot thank you for guide me to the important topic and basic point that I really miss , you know what I spend 3 month reading with java when I reach recursion it was setback for me I shocked when book give example with mergesort, he build array on Fantasy way that I got really confuse and frustrated that i'm able to follow so I just back for reading previous chapters .
thank you so much I really appreciate your time.
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