which is the best way to make a project in java

[rajn]

which is the best way of programming in java if i have to make a project in which there are lot of activities
pertaining to database (MSSQL Server) and a lot of security issues related with it.I have learned java by myself .So i dont know what are the major issues pertaining to database programming in java in REAL LIFE projects

I know the following ways of programming in java.
1) Applets that will directly access the sql database with third party drivers.
2) Applets that will communicate with application to insert or select the records from the database
3) Servlets with HTML as FRONT END

I would like to know which of the above is the best way to do a complex project pertaining to database

I would appreciate if any one can suggest me any other appropiate way of programming that is secure
and easy to create a complex project in java.